How To: 02-03 R1 Airbox mod: Free RAM AIR, 99-01 cheap. Improve flow

WARNING : before attempting any of these mods... know that i am just trying to help and anything you do to your bike, you do to yourself; and this site, its sponsors and i myself take no responsibility for any damage that may occur. whether it be on the road or due to neglegance. Now thats out of the way... lets get started.... This is for the 02-03 it changes the inlet flow charectaristics so that the air coming in is less turbulent. the general concensus is that this is not ram air. but it does work in a way very similar to the currently offered "ramair" systems. Most people have experienced a smoother accelleration and a general improvment in acceration above 70 mph. Have fun.... enjoy tinkering on your bike and be carefull!!!!!!! This article has been moved in its entirety. to this location. there are many more pictures, a better detailed walkthrough. and more, so check it out!. http://www.sbsource.com/viewarticle.php?id=3 Note: please keep responding to this thread to let people know what you thought about it. thanks!

to take full advantage of this you will need to purchase a k&n or bmc raing air filter. you could gain 1.5 hp with a stock filter but you would gain 3 hp with a racing style filter. You will need this before you begin. the tools you will need are as follows. 1. allen head drivers (the ones that came with bike should be sufficient.) 2. dremel tool. with cutting discs. 3. phillips head screwdriver. 4. pliers or vice grips. 5. 10mm rachet or open ended wrench. 6. electrical tape (optional) ------------------------------------------------------------------------------------ This will be just for the airbox... it is recomended that you rejet the carbs. I have not yet done this so maybe someone can post "how-to rejet your bike". ------------------------------------------------------------------------------------ 1. using an allen head driver remove the bolt at the tope of the gas tank. 1a. using allen keys remove the two bolts holding the drivers seat in remove the drivers seat. 2. lift the gas tank up and prop it there. (or trick a friend into to holding it up) 3. remove the hoses from the backside of the airbox. there will be three. two you should be able to remove with your fingers. the lst one you will have to use the vice grips or pliers on. 4. using the phillips head loosen the clamps that secure the box to the intake. 5. using the 10mm ratchet or open ended wrench remove the bolt at the frontmost portion of the airbox. it will be a few inches behind where the allen head bolt was that held down the gas tank. 6. remove the airbox. you might have to jiggle it to get it to come out. once the box is out cover the intake with a towel. you dont want anything to fall in there while you are working. 7. using the phillips head screwdriver remove all the screws that hold the airbox together. NOTE: there will be one i the center that will not come all the way out. 8. remove and save your stock airfilter. take the top of the box and flip it over. the two inlet holes are your targets. 9. using the dremel, you will want to cut away the back portion of the inlet stacks. and oval them out towards the back of the box. they will be 50 mm wide and 60 mm deep. when you are finished. very hard to explain they way they should be shaped. they will look like two ovals extending towards the bottom outside corners of the box. (pictures would help here) 10. after this is complete you will want to clean out the airbox as much as possible. use a wet cloth or some compressed air. that should do the trick. 11. reassemble the airbox with your new filter inside. when you tighten the screws make sure to go across just like a cars rim. back and forth rather than around. 12. at this point if you have done a slip-on exhaust system you might want to plug your ais system. locate the hose that required the pliers to take it off. find where it plugged into the airbox. and using electrical tape tape over the nipple and then go around it a few times making sure it at least two layers thick over the top and three or four tight around the outside. 13. reinstall the airbox. on the throttle body first then push forward. make sure the box is all the way down. 14. tighten the clamps onto the intake. 15. reinstall the hoses onto the box. including the one you have taped off. the hose will hold the tape on even better than just tape. 16. reinstall the bolt at the front of the airbox. 17. double check the intake clamps to make sure they are all way tight and seated correctly. 18. lower the gas tank and reinstall the the allen head screw. 19. you should be finished. yay!!!! NOTE: I have no pictures of this mod as it stands. if someone could provide me with some or post them up it would help this thread alot.

I found that a 12" 1 by 2 piece of wood with a rag cut in half and stapled to each end worked great holding the tank up and is now in my tool box for later use. By the way this a very easy mod took me all of 30 minutes.

i know this is a how to thread however.... if you try this and have good or bad results... please post what you encountered. if my instructions are bad... or something worked better for you... or if you only did half the mod ie: only removing one the two lips. post it up let people know if this mod is really worth it thanks

Originally posted by Charles Graves Yes you can use it without the fender part. Yes it will give the stock box more air, or the stock box mod. http://www.r1-forum.com/forums/showthread.php?s=&postid=395129#post395129 this is the new part from graves motorsports. charles graves says here that it will work with this mod. and work!

Hey, this might be really stupid, ... and I'm not sure if its even possible. Has anyone ever thought of installing a supersmall high volumn electric fan somewhere in the air intack. This might force a small amount of more air into the engine, and help makes things run much smoother. Any thoughts....

Originally posted by getchellad Hey, this might be really stupid, ... and I'm not sure if its even possible. Has anyone ever thought of installing a supersmall high volumn electric fan somewhere in the air intack. This might force a small amount of more air into the engine, and help makes things run much smoother. Any thoughts.... Nothing,I mean NOTHING escape my attention...lol http://www.electricsupercharger.com/

Ive mde up an air scoop that mounts to the top of the radiator directin more air to the ram air mod. Id post a pic but im new to the forum. if someone fills me in on how to post a pic ill put one up??????

DID IT WORK

dayofpain, This is what I have done.. I've edited out all the replies so you can rebuild this thread.. I would suggest that the guys that have tried this mod.. Take some pictures and send them to dayofpain so he can finish this thing off right. And when dayofpain has finished his editing.. post on how muh you LOVE this mod Yo are allowed to use the Pre-02 How To from Ivan.. As long as you rewrite if in your own words.. and make sure to mention where you got the information. This is a very good mod.. And I hope we can make it look at professional as possible.. :fact

thanks tidbit!!! working on it...

Quick question about the little rubber tube... Any further advice/experience about leaving it in or removing it? I'm planning on going ahead with the mod tomorrow, so any advice would be appreciated.

i have rode with it in, and with it removed. i experienced no difference at low rpms. when you get it done, please post back if you have any feelings about the mod... good/or bad. thanks! currently running without it. to prevent choking at higher rpms though.

anymore results people? come on... 1800 views... post up what you thought if you did it... feedback is neccessary for any DIY mod. thanks !

Just curious how does the ram air affect the fuel injection? You didn't have to remap in order to get peak perf...? How about with the aftermarket air filter? Thanks

when i only did the cRAM AIR it felt smoother but not like it needed a remap. however now that i have installed a filter and stacks i have developed a few flat spots. so i am getting remapped at the spring blast. Hope fully that will cure all. You should always remap in order to get peak performance. however i only know a few people with that much money. Im not one of them. Hope that helps...

Thanks, I'm running the bike in Formula Extreme at Elkhart and Brainerd and any free h.p. would be good. Alex

I was told from a very reliable source, NOT TO MOD. THE AIR BOX.

Who? And why not? You can't just throw out that type statement and not clarify. Alex

i was told by a very reliable source not to do anything because the r1 is fast enough. :hellobye

Originally posted by dayofpain then take the air box. identify the place where the one tube that is grey and you couldnt remove with your fingers will plug in. take some electrical tape and place over the end and wrap tightly. this prevents the ais solenoid from rerouting fresh air into your exhaust. I have an '03 R1 non california model with no AIS. Do I still have to tape off the one tube in order to prevent backfiring during decelaration?

unless you got your bike used you have a AIS system on your bike Cali bike or not. all R1 2002 on up have it unless you block it or remove it

I bought my bike new. I don't think it comes with the charcoal canister like found on California models. Should I plug that nipple/hose off anyway?:confused:

Can someone please clarify AIS system on '03 R1? Is it that charcoal canister/air pump system found on California models to meet standard polution control? :confused:

Well ?? Is this worth doing or not? Anyone noticed any more hp ??? Dayofpain--------> have your dyno'd before and after ??? Whats the 411 ?????

DAMN....must not be worth doing

Originally posted by R1_enough_said DAMN....must not be worth doing why cause we didnt reply in 10 minutes? lol

Originally posted by lsvtec Can someone please clarify AIS system on '03 R1? Is it that charcoal canister/air pump system found on California models to meet standard polution control? :confused: the answer to your question is no. it is not in reference to the charcoal system found on cal. models AIS = ar induction system. it pulls air from the airbox and injects it into the exhaust stream. this causes popping in the exhaust because the air is expanding. the only purpose this system has is to reduce emissions. that should have answered your question.

Originally posted by R1_enough_said Well ?? Is this worth doing or not? Anyone noticed any more hp ??? Dayofpain--------> have your dyno'd before and after ??? Whats the 411 ????? there was no before dyno... but i will be dynoed at spring blast. maybe we can guinea pig an R1 for a before and after type deal. who knows

Originally posted by dayofpain the answer to your question is no. it is not in reference to the charcoal system found on cal. models AIS = ar induction system. it pulls air from the airbox and injects it into the exhaust stream. this causes popping in the exhaust because the air is expanding. the only purpose this system has is to reduce emissions. that should have answered your question. Thanks for clarifying that, dayofpain. I think I am going to plug that hole. I need all the hp I can get since my bike only got a slip-on exhaust.

Originally posted by lsvtec Thanks for clarifying that, dayofpain. I think I am going to plug that hole. I need all the hp I can get since my bike only got a slip-on exhaust. it doesnt rob horsepower, at least not any amount that can measured properly. it just makes the annoying popping under deceleration. which sucks IMHO. another solution that has been addressed, is to take a zip tie and cinch that grey hose off. should have the same results.

Originally posted by svracer177 Who? And why not? You can't just throw out that type statement and not clarify. Alex I had resently call grave motor sports and had asked whats the best way to get MORE power and make my bike breath better. Asking about the THIS moderfication and it was recomended not to. At the same time I had ordered slide stoppers and v- stacks. Sorry the reply wasnt prompt.............................. :finger

lololololololol :lol thats hilarious... asking a vendor a question about whether a free mod is a good idea when it directly competes with a 400$ product they offer. why the hell would you order slide stops without and kind of ram air? now thats thinkin! sweeeeeeeeeeeeet customer: have you seen the free ramair mod? vendor: yes we dont think that is a good idea. customer: oh really, cool. thats what i thought. vendor: would you like to spend 400 dollars on our box that --------will do close to the same thing? customer: sure sign me up! another satisfied customer! (please note that this conversation never took place) i am being sarcastic..... some people cant tell the diiference on here.

maybe we can guinea pig an R1 for a before and after type deal. I will do it for the spring blast so that we can finally see the truth of this mod...

Originally posted by dayofpain lololololololol :lol thats hilarious... asking a vendor a question about whether a free mod is a good idea when it directly competes with a 400$ product they offer. why the hell would you order slide stops without and kind of ram air? now thats thinkin! sweeeeeeeeeeeeet customer: have you seen the free ramair mod? vendor: yes we dont think that is a good idea. customer: oh really, cool. thats what i thought. vendor: would you like to spend 400 dollars on our box that --------will do close to the same thing? customer: sure sign me up! another satisfied customer! (please note that this conversation never took place) i am being sarcastic..... some people cant tell the diiference on here. Let the truth be told DOP....

Originally posted by dayofpain it doesnt rob horsepower, at least not any amount that can measured properly. it just makes the annoying popping under deceleration. which sucks IMHO. another solution that has been addressed, is to take a zip tie and cinch that grey hose off. should have the same results. But my bike is not making any popping noise during decelaration, It just backfires thru the intake during low rpm down-shifting once in a while. They say because it runs lean. Should I plug it off anyway? Is there a way to fix that backfiring thru intake? I have already installed PCIIIr with Devil map since I can't find a map for my Ixil slip-on.

I did the free airbox MOD and installed a BMC race filter. i havent ridden the bike yet but I will let u guys know what it's like next week. I trust Ivan's is on the money with this or why else would he waste his time. He has nuttin 2 sell 2 U 4 do this mod, not even the filter!!!!!!

Originally posted by dayofpain lololololololol :lol thats hilarious... asking a vendor a question about whether a free mod is a good idea when it directly competes with a 400$ product they offer. why the hell would you order slide stops without and kind of ram air? now thats thinkin! sweeeeeeeeeeeeet sarcastic..... some people cant tell the diiference on here. I DONT GIVE A ***** WHAT YOU DO TO YOUR BIKE.

I've done this mod. Dynoed the bike before and after. Picked up about 2 hp, this is with the bike sitting on the dyno and no major air flow.

Damn, where is all of the feedback? :confused: I know a lot of you guys have tried this...POST YOUR REVIEWS!!

Originally posted by Lestat77 I've done this mod. Dynoed the bike before and after. Picked up about 2 hp, this is with the bike sitting on the dyno and no major air flow. awesome feedback... im glad to hear someones had success with this... would you mind posting the dyno charts? that would be great...!!!

next wensday my bike goes to the dyno to get a map made it has this mod done to it i will post my map i will post my dyno sheet and any other info that i can with stock airbox and just a slip on my bike dynoed 138 now it has this mod done a full akra race and pcr3 and graves stacks not sure what the elavation of toledo is my std numbers 141 and 138 sae

Originally posted by Vector next wensday my bike goes to the dyno to get a map made it has this mod done to it i will post my map i will post my dyno sheet and any other info that i can with stock airbox and just a slip on my bike dynoed 138 now it has this mod done a full akra race and pcr3 and graves stacks not sure what the elavation of toledo is my std numbers 141 and 138 sae thats sooo awesome. thank you for your imput. i look forward to seeing the dyno results. what did you think of the way the bike felt on the ass/dyno? any smoother? thats what most people have been saying. FYI: At spring blast we will be modding two bikes in this fashion for a dyno before and after. The tow people we have signed up so far are Swedie and Liquid02r1. Both members have been kind enough to lend their bikes for the sake of this thread. Thanks to them. If anyone else wants to do this or the other mod i have listed here just let me know either through pm's or this thread and we will be glad to work on your bike as well. Or guide you through it. thanks people!!!

Where and what is the spring blast? Thanks, Alex

Where and what is the spring blast? Here is the info on the Spring Blast...It is in Las Vegas http://www.r1-forum.com/forums/showthread.php?threadid=19251

Will it lean out alot?

Well she is at the shop today they are installing my chain and sprokets and doing the tune. so I hope to have it back buy friday or saturday at the latest crossing my fingers I hope my bike is a good one for this with just a slip on 138 seems like good numbers and as far as gas that I use if anyone isinterested Sunoco 94 is all that has ever been in her and is what she will be tuned on anything over 148 will make my day we will see ill keep you guys up to date on it

This article has been moved in its entirety. to this location. there are many more pictures, a better detailed walkthrough. and more, so check it out!. http://www.sbsource.com/viewarticle.php?id=3 Note: please keep responding to this thread to let people know what you thought about it. thanks!

Hey vector have you gotten your bike back yet? I was just wondering if you need to make top end a little richer with a aftermarket filter.

Originally posted by Vector Well she is at the shop today they are installing my chain and sprokets and doing the tune. so I hope to have it back buy friday or saturday at the latest crossing my fingers I hope my bike is a good one for this with just a slip on 138 seems like good numbers and as far as gas that I use if anyone isinterested Sunoco 94 is all that has ever been in her and is what she will be tuned on anything over 148 will make my day we will see ill keep you guys up to date on it any updates??? im dyin to find out.

Picked my bike up last night. Baseline pulls where 135.8 Final map pull was 146.6 I am attaching the map Link to photo of dynochart is here http://www.r1-forum.com/gallery/showphoto.php?photo=7171 There is a dip at 5000-5500 that is in the graph. but you cant tell its there when riding. (should I be able to Feel that dip?) To compair how my bike did a stock 03 busa was at the shop also getting picked up. He dynoed 153.2 And also a 01 GSXR 1k with a full Akra system and pc3 from what I can tell thats all that was done to it. Dynoed 144.8 So far I am happy with how my bike did. As soon as funds permit be going back to where I first had my bike dynoed where it ran 138 with a slipon to see how it does there. And to see if They can get that dip out. One thing I did notice a custom map did was improve the bikes response.

Nice results. Thanks for posting the dyno and the map. Interesting to see how some tuners like to advance the timing (like Vector's map) and others like to retard it (like Dan Kyle's Arata map). Whatever works. Also, I wonder why it's leaned out on the top end? Maybe you should experiment and make it a little richer on the top. With this mod you should be getting a little more air at speed than you would on a static dyno. Not nearly as much as a true ram air box, but more none the less.

put in 170 miles on the bike today. A few things i noticed. they really had the bike straped down hard on the dyno it left grooves in the tire after 170 miles you can still sorta see them. The last dyno I went to didnt even put a mark on the tire I think that alone could make the HP change a bit the only thing i wonder is what makes the dip it is one of 2 things a lean bog or a rich bog maybe a few tuners out there know if any of you get a chance to try it tell me if its ya or na for your bike

I think the Akro full makes a small dip in that range.

OHere is the 99-01 to take full advantage of this you will need to purchase a k&n or bmc raing air filter. you could gain 1.5 hp with a stock filter but you would gain 3 hp with a racing style filter. You will need this before you begin. the tools you will need are as follows. 1. allen head drivers (the ones that came with bike should be sufficient.) 2. dremel tool. with cutting discs. 3. phillips head screwdriver. 4. pliers or vice grips. 5. 10mm rachet or open ended wrench. 6. electrical tape (optional) ------------------------------------------------------------------------------------ This will be just for the airbox... it is recomended that you rejet the carbs. I have not yet done this so maybe someone can post "how-to rejet your bike". ------------------------------------------------------------------------------------ 1. using an allen head driver remove the bolt at the tope of the gas tank. 1a. using allen keys remove the two bolts holding the drivers seat in remove the drivers seat. 2. lift the gas tank up and prop it there. (or trick a friend into to holding it up) 3. remove the hoses from the backside of the airbox. there will be three. two you should be able to remove with your fingers. the lst one you will have to use the vice grips or pliers on. 4. using the phillips head loosen the clamps that secure the box to the intake. 5. using the 10mm ratchet or open ended wrench remove the bolt at the frontmost portion of the airbox. it will be a few inches behind where the allen head bolt was that held down the gas tank. 6. remove the airbox. you might have to jiggle it to get it to come out. once the box is out cover the intake with a towel. you dont want anything to fall in there while you are working. 7. using the phillips head screwdriver remove all the screws that hold the airbox together. NOTE: there will be one i the center that will not come all the way out. 8. remove and save your stock airfilter. take the top of the box and flip it over. the two inlet holes are your targets. 9. using the dremel, you will want to cut away the back portion of the inlet stacks. and oval them out towards the back of the box. they will be 50 mm wide and 60 mm deep. when you are finished. very hard to explain they way they should be shaped. they will look like two ovals extending towards the bottom outside corners of the box. (pictures would help here) 10. after this is complete you will want to clean out the airbox as much as possible. use a wet cloth or some compressed air. that should do the trick. 11. reassemble the airbox with your new filter inside. when you tighten the screws make sure to go across just like a cars rim. back and forth rather than around. 12. at this point if you have done a slip-on exhaust system you might want to plug your ais system. locate the hose that required the pliers to take it off. find where it plugged into the airbox. and using electrical tape tape over the nipple and then go around it a few times making sure it at least two layers thick over the top and three or four tight around the outside. 13. reinstall the airbox. on the throttle body first then push forward. make sure the box is all the way down. 14. tighten the clamps onto the intake. 15. reinstall the hoses onto the box. including the one you have taped off. the hose will hold the tape on even better than just tape. 16. reinstall the bolt at the front of the airbox. 17. double check the intake clamps to make sure they are all way tight and seated correctly. 18. lower the gas tank and reinstall the the allen head screw. 19. you should be finished. yay!!!! NOTE: I have no pictures of this mod as it stands. if someone could provide me with some or post them up it would help this thread alot. __________________ DOP sbsource.com i love cursing in french, its like wiping your ass with silk... Last edited by dayofpain on IS THIS THE SAME MY 98 R1?

yes it should be

the comparison at spring blast will be as folows: liquid02r1's bike before and after. to show a general increase in power. DOP's bike with every airbox mod made. vel stacks, airfilter, slide stops, and air deflector. the point of this will be to compare my bike to a full graves bike. im sure there will be at least one bike there with graves ram air, stacks, filter, deflector, stops and a full exhaust. my bike has a full devil system. its not the best but i love it. im sure the graves full system is slightly better. if my bike can come within a few hp of who evers bike we use for the test i will be happy. 400 dollars isnt worth in my opinion 3 hp.

Can't wait to see the results:)

could any of you tell me what the slide stops do sorry if i left it out before my bike has a K&N alsojust talked to a guy today who had his stock gsxr 01 dynoed at the same place as me it layed down 133 sae it was dynoed about 4 hours after mine Vector

Yes this mod works, it's only common sense, if you don't want to spend $400 on a air box this is the next best thing. It's simple if you remove the obstructions the air can get in faster, whether being pushed in by movement or when being drawn in by the engine. If you want to get rid of the air pump, don't just block it off and leave an extra 3 lbs of spagetti on the bike. Take the air pump and all of its line off. You can pull the spigots out of the head with a pair of plyers and then install 10 mm heli coils. (no drilling needed) Then you install 8 mm allen head bolts about 1/2 " long, with lock washers. You'll have more room on the front of the motor and you'll get rid of the weight.

UPDATE: After many dyno runs with power commander tuning and without tuning, we acheived the following results. This mod makes an average of 3.5 hp at the wheels on a stock bike with absolutly no mods. With tuning from dynojet and a custom map installed in a power commander. It is possible to gain about 1.5 more hp just from this simple modification. On modified bike such as an 02 with a full exhaust and pcIIIr this modification alone made an additional 3 hp and about 1 more hp after tuning was realized. Now its been proven, this mod works and its a free 3 hp at the wheels. This modification also creates a smoother more linear power curve and increases all the way across the power band. A very special thanks goes out to Dusty at DynoJet and all the extraordinary people there for performing all the tuning and dyno results. Thanks Guys!

UPDATE: After many dyno runs with power commander tuning and without tuning, we acheived the following results. This mod makes an average of 3.5 hp at the wheels on a stock bike with absolutly no mods. With tuning from dynojet and a custom map installed in a power commander. It is possible to gain about 1.5 more hp just from this simple modification. On modified bike such as an 02 with a full exhaust and pcIIIr this modification alone made an additional 3 hp and about 1 more hp after tuning was realized. Day of pain -My thanks to you for helping me do the air box mod and with hooking me up with the power commander. (stock red 02R1) I rode the bike back at home last night and it felt great. The power feels smoother all over the RPM range. All I can say is if you haven't done this yet, Why not? It's free, makes a good 3.5 RWHP, and smooths out the power. This mod was tested at dynojets facility, dyno'ed by a dynojet tech. and witnessed by several forum members.... Try it you'll like it. :rock :rock :rock

Originally posted by Twisted Off! Day of pain -My thanks to you for helping me do the air box mod and with hooking me up with the power commander. (stock red 02R1) I rode the bike back at home last night and it felt great. The power feels smoother all over the RPM range. All I can say is if you haven't done this yet, Why not? It's free, makes a good 3.5 RWHP, and smooths out the power. This mod was tested at dynojets facility, dyno'ed by a dynojet tech. and witnessed by several forum members.... Try it you'll like it. :rock :rock :rock no problem... im glad i could finally demonstrate the power this mod makes. im also glad i could meet all you people. very fun times. thanks for letting me wrench on your bikes. just a teaser for people watchnig this thread... i am developing a "second stage" to this mod. when we were testing at dynojet. we removed the top to my airbox and found an additional 4hp. i believe without getting too crazy i can recover some of those lost hp... and make more hp than a ram air box. ill keep everyone posted.

Just wondering if anyone has these maps for this mod? i've been trying to find them but cant. any help would be great. thanks guys

This past weekend I got a chance to spend just over a hour on the local shops dyno. me and my laptop and about 17 maps one of them being my custom map I had made. With my map the bike layed down 146.3 HP SAE after trying each map and mixing mine with one of the other maps I had. Ended up with 148.4 HP SAE and 151.3 STD Mods are listed in sig Anyone interested in my map just email me I can send you the graph and the map Jeff And all the dyno time was free of charge to boot :)

awesome! thanks for posting up your results... 151 is insane! very nice. thanks! DOP

I am thinking of trying this mod but firts I have a question, has anyone tried it without the PCIIIr? Ihave a GYT-R slipon & a K&N filter, if I do this mod is the FI going to be able to compensate like it did when I installed the slipon or is it going to get out of it's perameters?

I don't think your Fi adjusted for your pipe. There is no o2 sensor so it can't. To answer your question yes the mod will lean you out even more than you are now. Trust me a PcIII will smooooooooooth out what you have now and you can richen/adjust to whatever mods you do from here on out:)

So if my Fi did not adjust for the pipe does it adjust for different elevation? and if I install a PCIIIr will it compesate for elevation or do I have to load a different map for everywhere I ride, I know this is off the air box subject but I do a lot of traveling on the bike and the easier the tuning the better the ride if you know what I mean, If I can do this mod and install a PCIIr and still ride from Here at 4500ft to the coast then through oregon to montana then home and not notice it running lean or fat anywhere then I'm all for it, just gotta find out what it will do before spending the cash,

I did the mod to my 02 R1. It has a GYT_R pipe and 3xxx mi. It sounded and felt meaner. My friend recently bought and 03 R1. It has 8 or 900 miles. My bike definetly pulls harder than his. It is more noticable around 60-70 up. Thank you Day Of Pain.

just a thought...since we are forcing more air up in the box at a different flow pattern, do you think addind the vel stacks on the 1 and 4 cylinders would help????????????????

Originally posted by R1 in NYC just a thought...since we are forcing more air up in the box at a different flow pattern, do you think addind the vel stacks on the 1 and 4 cylinders would help???????????????? interesting idea, however thats not really how the velocity stacks work. basically when you dont have velocity stacks all the air is pulled into the engine from the lower part of box, making all four cyclinders fight for the same air. when you raise the intake length of the center two cylinders, they are allowed to pull air from a different location, thus balancing the box out.

UPDATE: due to the moderators and vendors on this board. this thread will be coming down. i will delete it in 24 hours. sorry for the inconvience.

What???? Your thread is killing airbox sales so please delete it??? hmmm R1 forum has now Hit the fan

that is not the reason.... but that sure would be cool. i wouldnt put it past them.

Originally posted by dayofpain that is not the reason.... but that sure would be cool. i wouldnt put it past them. Why don't people understand that the sponsors of this site pay for operating costs (only a small portion is covered by the sponsors); in addition many forget the domain name had to be purchased as well. We're covering costs to provide this forum to YOU; the members. Is that coming through clearly enough? For the record: No vendor/sponsor has requested removal of a thread pertaining to DYI modifications; including this thread. I highly doubt they feel it's a threat and many welcome DYI as it leads to far greater levels of modification in the future. Regards.

yes it is Vpreatr. But part of forums is info like Day of pain listed or this thread started. the forum is to share information to the users. if some one is told to delete a thread like this they might as well delete the forum. if there is no usefull information on the forum then why come. If there is no usefull information like this then who even cares what the sponsers are selling just a thought about not every one can afford to buy Airbox X but i am sure the information gained by this thread has been usefull to people. I would go as far as to say that this thread atracted new people to this forum that are maybe even buying items from the sponser if a sponser is wineing about how this is hurting there sales. well this thread is the reason people come to the forums if there was no thread there would be no people. no people means no sales just a thought

Well I just stumble on to this thread but like what I read all the way up to the last couple of posts. It saddens me that this thread is going to be deleted b/c its helpfull enough for someone to modify thier 1 themselves and not spend 400+ dollars on an aftermarket airbox. There are still plenty of people out there who arent willing to chop on they're own air box and buy the Graves or BoxR box. I was considering buying the Graves box until now. No way in hell will I buy his box now b/c this thread is being deleted. I can only assume its being removed due to pressure from aftermarket air-box manufacturers. I love this forum and have learned alot and saved alot of money. I have purchased many items from many of the sponsers and always try to give them an oppertunity to match prices. If it was to be confirmed what I have stated above about the closure of this thread I can assure you that I would not spend another dime of my money on products made by the sponser who caused this thread to close. I can understand why its a "secret" why this thread is going away...the fear that other members will feel the same and spend they're money elswhere. MY .02

Originally posted by VPREATR Why don't people understand that the sponsors of this site pay for operating costs (only a small portion is covered by the sponsors); in addition many forget the domain name had to be purchased as well. We're covering costs to provide this forum to YOU; the members. Is that coming through clearly enough? Regards. I just don't believe that a sponsor would feel so strongly about this thread taking money out of his pocket that he would threaten to pull his sponsorship unless it was deleted. He would have to know that people will still share the information either through 1 on 1 or on another site. Maybe I am in left field but I just don't understand the reasoning for smashing the sharing of helpfull information.

Thread will now be opened... For the time being DOP I believe you have to at least explain to the membership why you are deleting your How To.. For all the users that jumped over the forum leadership.. NO PM's or messages were sent out to anyone within my section to delete a thread.. I give you my word.. Let's please at least get the facts before we start jumping to conclusions.. Thanks and have a good day

Why don't you delete every page but the first 2. That way NO info will be lost on HOW TO MOD THE AIRBOX. just an idea :)

This is DOP's thread not mine... He posted up a good How To.. and if he wants me to delete/edit/change it.. He can always PM me..

tidbit please contact me through email regarding this thread.

Due to the enormous response in email (150+ emails in 4 days). this thread will be staying. in its entirety. thanks for your support through this.

It is good thread I thought. The whole thing didn't have to stay just the info part. Glad its staying:)

Ok. I did the mod and then some. I took the lip that holds the rubber snorkel thing complety out. Now the intake hole is much larger. I don't know if any additional gains were made, but I figured it probably wouldn't hurt anything. I left the stock air filter in it for now. I took a short spin, and it sounds different and maybe has a little more power, but I'm not sure. I may try an aftermarket filter if I can find one that filters better than the k&n. IMO those suck.

bmc race filter those are better.

The link for the mod doesn't work:(

works now :thumbup

Originally posted by dayofpain UPDATE: After many dyno runs with power commander tuning and without tuning, we acheived the following results. This mod makes an average of 3.5 hp at the wheels on a stock bike with absolutly no mods. With tuning from dynojet and a custom map installed in a power commander. It is possible to gain about 1.5 more hp just from this simple modification. On modified bike such as an 02 with a full exhaust and pcIIIr this modification alone made an additional 3 hp and about 1 more hp after tuning was realized. Does anyone have these dyno charts? It would be great to see them so that a person could see exactly what a person would gain on a completely stock bike or a modified bike. If anyone has these, please post them. Thx

I'm gonna have to try this!

Originally posted by yonkabluna Does anyone have these dyno charts? It would be great to see them so that a person could see exactly what a person would gain on a completely stock bike or a modified bike. If anyone has these, please post them. Thx It was my bike that was dynoed as a completely stock bike before and after the air box mod. I didn't get a copy of the dyno sheet. :( What I can tell you about it; the bike runs better, feels like its throttle responce is much "cleaner". You ass dyno will feel the change. It's a bit noiser when you get on the gas now. it runs slightly hotter. From looking at the air/ fuel ratio on the dyno chart before and after. there was no change needed to the FI system. ie.. you wouldn't have to install a power commander. If you have any questions you can contact me twistedoff@speed-tribe.com

Do you rememeber what the gains were like on the dyno chart? As in, gains everywhere or losses in some places? I wonder if putting an aftermarket air filter in with this mod would force the use of a power commander? thx

Originally posted by yonkabluna Do you rememeber what the gains were like on the dyno chart? As in, gains everywhere or losses in some places? I wonder if putting an aftermarket air filter in with this mod would force the use of a power commander? thx Good questions, please tell us Twisted!

My bike may she RIP was up 4% at around 4000to as much as 10% at peak with its climbing in % from the 4% gain to the 10% gain hope this info helps 149. something SAE and 151. somthing std was my numbers

So you didn't lose any power anywhere then? That's great

This mod worked surprisingly well. My bike totally feels more powerful. I did the cRAM air mod on a completely stock 02 (stock air filter, also). :rock

Great mod, works real well. All i used to cut the air box was a set of shears. The power is noticable, it pulls a bit better over 6 and wheelies up quicker for me. Only takes like 30 minutes.

I don't remember seeing any dips on the chart. Nor can I feel any when I ride. just seems better from idle to redline. Sorry to take so long to reply, I haven't been checking this forum often.

Thanks for the reply Twisted... I think I will be doing this mod soon. I have a K&N filter, I hope that doesn't affect the outcome of the mod.

Just a question in regards to the link of the mod on the SBSource site. It says if may let water in if you use the bike in the rain, has anyone had any problem with this??? :confused:

I've done a special custom Ramair for my racebike... I've built a thunnel going from the stock air intake on the airbox out to the roof of the front inner fairing area. Gonna take pics soon! Haven't been able to try it out but it looks pimpin and cost me 5 bucks.

Iv been caught in some pretty heavy rain, no probs what so ever. Even if a little rain got into the fuel injection, it would only cough a little bit, no biggie.

Originally posted by skinnyR! Iv been caught in some pretty heavy rain, no probs what so ever. Even if a little rain got into the fuel injection, it would only cough a little bit, no biggie. Cheers for replying, i forgot about this thread. :crash

a pic of my own little extra mod... lols

:confused:

I know.. it's winter.... I am not gonna go out riding it like this... lols.. I will be making a much better solution soon.

It looks like you hit Donald Duck at 140mph and his bill got stuck in your radiator.......

AHAHAHAH! :D thanks. needed the laugh.

So, no one has really mentioned if you lose any low end from this mod. I' ve got a Yoshi slip on ,V- stacks,k&n, pc111r. Anyone with comparable mods? Do you need to remap? Any maps available? Thanx Kevin

No loss, only gain. Do it, its worth it.

Sorry to bring this back from the dead, but I have a (possibly stupid) question... If I do this mod and add the Graves air deflector (and maybe Velocity Stacks while I'm in there, anyway), am I going to need to do a PC3/PC3R remap to richen the mixture, or will I still be within safe leanness? I do have a PC3R (got a good deal on it) with the stock-US map on it, but most of the maps I see out there involve full exhaust systems, including the Graves ramairbox/deflector/vstacks map. Otherwise, I'm going to have to find a motorcycle dyno somewhere and spend even more money in order to kill myself faster... :-p Thanks!

dont be sorry there are some maps on the Dynojet website that have stacks moded box and ram air deflector. Dusty there did all our tuning for the maps and such, and hes head of R&d. so they are top notch.

Originally posted by R1LOON Just a question in regards to the link of the mod on the SBSource site. It says if may let water in if you use the bike in the rain, has anyone had any problem with this??? :confused: dont ride in the rain much but the one time i did i never experienced a problem.

Originally posted by dayofpain dont be sorry there are some maps on the Dynojet website that have stacks moded box and ram air deflector. Dusty there did all our tuning for the maps and such, and hes head of R&d. so they are top notch. Hmm...maybe I'm going blind (entirely possible), but all the maps I see that include these mods also involve a aftermarket full exhaust system, including in the user-contributed section. Or would one of those maps still work ok with the stock exhaust? Thanks!

I think I'm gonna give this a shot......I just hope i can find a map for full arata, v stacks, knN air filter.

Pete just use Dan kyle's Arata map. Just to let you know mine made more power with the stock filter when I had my pcIII. I should have my pcIIIr anyday now and will most likely get a custom map or modify Dan Kyle's. I sold my K and N but later got a BMC cheap on E-bay. BTW this mod is easy and smooths out the bike a bit Mike :hellobye

Originally posted by 02R1guy Pete just use Dan kyle's Arata map. Just to let you know mine made more power with the stock filter when I had my pcIII. I should have my pcIIIr anyday now and will most likely get a custom map or modify Dan Kyle's. I sold my K and N but later got a BMC cheap on E-bay. BTW this mod is easy and smooths out the bike a bit Mike :hellobye I'm thinking of getting an Arata. I've got the same mods as you. How is your low and mid range power ? Any noticable loss down low? Good for the street? I am going to dump my Yoshi slip on, I think.

Help! I can't get the link to work for the 02 Airbox mod. Does anyone have the instructions and/or pictures? I really want to try it out! Thanx Alexjoz 2002 R1

I looked at my 03 air box today and I think they have changed the intake. Mine has a one piece unit with 2 squared openings each about 1.5in x 1.5 in that run inot the air box. I tried going to sbsource to actaully see some pics but have been unable to get the site to come up. Does anyone have any pics of what needs to actually be cut? i have seen a pic of an older model r1 w/ round intake ports but not sure if anyone has tried on the 03 with the square intake ports. Thanks, Rk

Anyone got any other links or pics of this mod so i can give it a go on my stock 03?? or can someone mail me some pics mattosman@ozemail.com.au ??

Originally posted by R1GHOST I looked at my 03 air box today and I think they have changed the intake. Mine has a one piece unit with 2 squared openings each about 1.5in x 1.5 in that run inot the air box. I tried going to sbsource to actaully see some pics but have been unable to get the site to come up. Does anyone have any pics of what needs to actually be cut? i have seen a pic of an older model r1 w/ round intake ports but not sure if anyone has tried on the 03 with the square intake ports. Thanks, Rk took my 03 apart today and saw the same thing. then i had an idea:p . i pulled the rubber hose out, cut the front lip of the box about 1" up and as wide as the hose. then i put the hose back on inside out, with the long end outside of the box and the angle so the opening is more or less vertical when its on. (wish i took pics but if someone wants i can take the bike apart again, not like its not fun doing this stiff :lol ) then there is a little lip up inside the spot where the new "ram air" will go, its a vertical peice of plastic about 1/2" high. took a knife, scored the peice twice and broke it off clean. now ou can push the box back in. i noticed that the tube hits the bottom of that plastic thing down there and i didnt know what it did other than it looked like it keep the fan from throwing stuff up in the box. anyways, there are a few peices of plastic up front there and i used the top most one as a guide to cut the bottom one. (again a pic would have been great :p ) after thats cut out, the tube will more or less fit neatly inside. gona go for a ride later to check the old school dyno :riding

let me know how it turns out, I did not want to start hacking away at stuff and then be stuck buying a new one...Im waiting for my arrow slipon and PCIII to come in..does anyone have a map for the arrow slipon? Thanks

just got back...man was it windy out in MI tonight :eek: . it kinda made it hard to tell but the responce feals quicker. actualy any time im moving it feals faster. think the "ram air" is working. cant wait to get a better filter now. would i do it again. HELL YA!!! took no time and is a noticeable difference.

Can you get me some pics of what you mean at all?? Sorry to be a pain in the ass, but i've got an 03 as well, and also don't just want to start hacking bits up without knowing what i'm doing!

I like the idea of running the rubber tube backwards on the airbox, after cutting off the lip on the outside front of the airbox off ! I'm running a Yoshi Slip-on PCIII USB and a similar set-up on my 02 R1. Any idea what map to run? Right now I'm running the stock R1 with Yoshi Slip-on Map. Is this close enough to a "ram-air" box to run a ram air map? ANY Map suggestions? :fork Alex

oh crap, i kinds screwed up. i did some more work on my airbox but didnt get any pics of what it used to look like. :p . I do have some pics of the new stuff though:boobies

here is another view of what to cut out for the ruber tube

This kinda explains how and what to cut off of the box and how the rubber tube should look. if you look close that box looks a bit different now :yesnod

here is what i did tonight. this is the rough fiberglass befor i cut it to fit the bike.

here is another angle for the point of view of the air thats gona get shoved in :rock

here is is ready to go in. trimmed to fit snug.

here is from insid the box installed in the bike.

So can I presume with the addition of the fiberglass you will be taking the rubber intake out of the equation?

Oh...forgot to ask..let us now how it feels with that fiberglass piece on there.

Yep, with that hole he cut that rubber piece will never go back in there.

Nice Work on the Fiberglass Ram AIr Intake! How's the bike feel with the mod? Hey, when you having everyone over for some eats on that Awesome Barbeque! :D Alexjoz

rode the bike today. had to bump my fuel up with the ecm to +5 now. rides a lot smother. previously when i was +5, I lost low end. Now its quick. quicker responce. Not what i thought it would be though. I think its about time for a PCIII. unless there is some way i can make one :p . doubt it though. OH well, got everything i needed out of it I guess. next step. PCIII some stacks and a dyno to play on :boobies

Ramair+dyno=worthless. Now how many time will I have to tell you guys this,I dunno.... You can use it for fueling curve till around 7k rpms,but that is all.

Originally posted by martinc Ramair+dyno=worthless. Now how many time will I have to tell you guys this,I dunno.... You can use it for fueling curve till around 7k rpms,but that is all. check this guy out. http://www.sportrider.com/tech/146_9912_ram/ (Ram Air Dyno) why can i get a custom map like this:p I know, probably wont work too well, but just with the larger air opeining and GYT-R pipe i would like to see how much if any gain. Oh, and also it the fuel settings make any difference or if im just smokin crack:crash . even if this gives me 1 more HP im happy, only cost me like $25.

hi guys im riding a stock R1 2001 can i knw how to do the ram air box on my bike? no money to buy the ram air box from graves or hotbodies kekekek cheers

the sb source link dont work!!!

Read Day of pains first post on this thread.... pretty descriptive...

i wanna see pics of how "oval" its meant to me cut

I too would like to see pics.... it would help.

me too

I do some cheap to mod the airbox look at the pic

another pic

I just buy this r1 2003 with 900 miles, and before start ride, I do mods, the suspension, front brake lines and the airbox... I hope to get more ideas on this forum..

Why the foil ? Is it tape like ? Will it get sucked in ? Why the mod ? Details :D

the foil are self stiky and hold pretty good, that way all the air coming in goes inside the box, not under or sides, that why the foil tape goes from inside the box to the intake, that foil it's from a/c work and will stick and last forever.

Just wondering where you found that "snorkle" looking peice that comes out from the air box, basically the ducting to the ram air mod?? definatly interested in this mod.

the snorkel are inside of you ram air box.

so u basically flipped it aorund the opposite direction?

yes , also I make a liitle holes on bot side to hold it with zip ties on the radiator hangers..

DO YOU READY MAKE IT???

Not yet, I'm putting the bike away for winter in a couple of weeks and i have to do some things under the tank...so i'm gonna gget it done by the end of the month or so, i'll let u know how it goes

Anybody get that link at sbsource to work. Have yet to see the pics about the oval cutting.

I think the guy who devised that mod ran back to cars with his tail between his legs... :crash

My mom drives a car.:lol

OK, so im new to this, can i ask a few questions regading this MOD? Will it work on an '02 R1 ? Im thinking of doing the MOD as well as removing the clean-air gadget. Can i remove the air-pump ? does the '02 have one ? MY bike is standard except the following : Termignoni TIT slip-on Ohlins rear shock Ohlins damper 520 conv Race rearsets Thanks for the advice, we don;'t have any dyno's in Thailand, in fact we dont have bugger-all :(

yes you can do this to your 02.... although i personally would not remove the air pump and clean air thingy. anyway i have odne the mod to mine over the winter....very clean and professional.... if you are going to do it, a good idea would be to get a set of velocity stacks and a K&N filter to maximize air intake...the mod is simple, i will send you some pics of mine soon....maybe sunday when im off.... if you dont see them there by then hassle me somemore...

Good luck tuning that perfectly...

Well i just got a power commander 3, so it should be tune-able... but without it i would not suggest doing this mod(worth mentioning) it's just too much change from the stock (fuel injection) settings to get a kind of real perforance gains from without the pc3. (I've also got a micron slip-on to semi-complete it) But i will get the pics on soon.

Thanks, Can you tell me where i can get the stacks and how much ? I have friends coming from the US and maybe they can bring me some.

Originally posted by Gallahue Well i just got a power commander 3, so it should be tune-able... but without it i would not suggest doing this mod(worth mentioning) it's just too much change from the stock (fuel injection) settings to get a kind of real perforance gains from without the pc3. (I've also got a micron slip-on to semi-complete it) But i will get the pics on soon. Keep me informed on how you"ll compensate for real road air pressure so your engine wont risk running lean :) (something you cant simulate AT ALL on a dyno btw)

Originally posted by martinc Keep me informed on how you"ll compensate for real road air pressure so your engine wont risk running lean :) (something you cant simulate AT ALL on a dyno btw) Well in 02 along with fuel injection came alot of other sensors on the r1.... including a airbox sensor which is a (aps) atmoshperic pressure sensor which will sense "real air pressure". the ram air mod will not change a thing with atmoshperic pressure, altolugh it will greatly increase airflow... the airbox is designed to (with or without this mod) be able to handle high velocity and turbulent air.... its not like your going to have a wind speed sensor in any airbox, ram air or not .:owwn3d (jk) :P

Jesus Christ...you really think you owned me with that answer? Bwaahaahaahaaaaaaaaaaaaa! Ok,school"s in. 1st of all,I"m wondering why Graves is the only serious ramair box manufacturer who actually bothered delivering maps with their ramair boxes? I"m also wondering why it took them more than 3 months to offer a generally ballpark set of maps? I"m also wondering why they had to resort to numerous on-board lambda sensors and data aquisition technotrickery and rack up a zillion miles on the road before offering those maps? I"m also wondering why,although my bike is carbureted,the jetting is all over the place when its raining or getting cold? I"m also wondering if you really think that the poor little cheap sensors on your bike have the ability to correct ANY and ALL changes brought by such a thing as a ramair box!!?? What would also be your background as far as ramair is concerned? Not poking you,just curious on that one... Answers: 1-Because they care about their products and ramair is a performance-oriented mod that should be taken seriously. 2-To gather as much data as possible in as many weather conditions possible in order to figure out the best map so your bike wont run lean in any weather conditions,and mainly because you just cant tune it on a dyno,even with big fans...many did it anyways,and can report that their bikes is running well...it is,on a dyno sheet...real world is a whole lot different. 3-Simply because on a closed air box,air is heated by the engine and then its kinda stable at that temp and is mostly dry,where in an open airbox,what goes on outside goes in inside;jetting in those cases is more crucial on a sled or on a 2 strokes than a 4 strokes,both it can mess up jetting nonetheless when reaching certain weather figures,conditions that your stock sensors cant compensate,or even compensate fast enough for that matter. 4-See answer #3 5-They simply cant;the most good tuners can do is bring the mapping to a setting where the sensor would be able to work acceptably; The ECU in your bike is not fast enough for such a mod;its possible to make it work though,return to beginning of the answer for the reason. I"ve been working on ramaired bikes for the last 9 years and specifically toying with my 99 since the beginning,searching for the perfect setup...and its no small thing to acheive,but I did it. Anyways,dont forget to seal up the surroundings of your air filter as well as your top airbox lid and plugging any holes and removing any tubes going in or from the box;dont forget to remove the breather hose too,it might blow the head gasket one day.

Originally posted by martinc Jesus Christ...you really think you owned me with that answer? Bwaahaahaahaaaaaaaaaaaaa! Ok,school"s in. 1st of all,I"m wondering why Graves is the only serious ramair box manufacturer who actually bothered delivering maps with their ramair boxes? I"m also wondering why it took them more than 3 months to offer a generally ballpark set of maps? I"m also wondering why they had to resort to numerous on-board lambda sensors and data aquisition technotrickery and rack up a zillion miles on the road before offering those maps? I"m also wondering why,although my bike is carbureted,the jetting is all over the place when its raining or getting cold? I"m also wondering if you really think that the poor little cheap sensors on your bike have the ability to correct ANY and ALL changes brought by such a thing as a ramair box!!?? What would also be your background as far as ramair is concerned? Not poking you,just curious on that one... Answers: 1-Because they care about their products and ramair is a performance-oriented mod that should be taken seriously. 2-To gather as much data as possible in as many weather conditions possible in order to figure out the best map so your bike wont run lean in any weather conditions,and mainly because you just cant tune it on a dyno,even with big fans...many did it anyways,and can report that their bikes is running well...it is,on a dyno sheet...real world is a whole lot different. 3-Simply because on a closed air box,air is heated by the engine and then its kinda stable at that temp and is mostly dry,where in an open airbox,what goes on outside goes in inside;jetting in those cases is more crucial on a sled or on a 2 strokes than a 4 strokes,both it can mess up jetting nonetheless when reaching certain weather figures,conditions that your stock sensors cant compensate,or even compensate fast enough for that matter. 4-See answer #3 5-They simply cant;the most good tuners can do is bring the mapping to a setting where the sensor would be able to work acceptably; The ECU in your bike is not fast enough for such a mod;its possible to make it work though,return to beginning of the answer for the reason. I"ve been working on ramaired bikes for the last 9 years and specifically toying with my 99 since the beginning,searching for the perfect setup...and its no small thing to acheive,but I did it. Anyways,dont forget to seal up the surroundings of your air filter as well as your top airbox lid and plugging any holes and removing any tubes going in or from the box;dont forget to remove the breather hose too,it might blow the head gasket one day. :fact

Whoaaa.... lil touchy today are we.... well for those of us have something better to do today than write a book online:iamwithst lets get back to basics... we're not talking about the fundamentals of aero/thermodynamics here.... this is a cheap, easy mod for ppl who dont want to go out and buy an aftermarket airbox. Yes if you want to spend $300 bucks and save yourself some tweaking go buy a box. Regardless of all the complications and varibles you mentioned. most of which are insignifcant and all of which are going to be encountered in everyday driving... with or without mod's... the sensors are there to control and monitor the variables as best as possible. The maps graves sent out were there to help in tuning the FI, get a map that is designed for the setup post mod and fine tune it from there.... yes it will take a many tries to get it right...and yes your bike will run differntly in the rain, when its damp out and when the atmospheric pressure drops/jumps and NO you Will NOT be able to control these varibles with a simple air box mod like martin would like to do.... Chill out its not personal

Originally posted by Gallahue ...and NO you Will NOT be able to control these varibles with a simple air box mod like martin would like to do.... Chill out its not personal ...specially when the atmospheric pressure sensor is OUTSIDE the airbox... :lol

Ill take this to basics a step further GM made the name "RAM AIR" back in the sixties. No car or motorcycle is capable to reach the speeds to actually "Ram Air" into an engine.IE, bringing in air to pressurize the airbox and to force more air into a cylinder at a faster rate than piston draw speed. All these mods are doing is creating a cold air intake, which is better than nothing at all, but I will point out that all the manufactures that have this always put it up near the headlight area to bring in what would be the coolest air, NOT down on top of the radiator where your actually heating the air back up before coming into the box...by putting the inlet down on top of the radiator I doubt your seeing any kind of HP increase.

Wrong! We did tests and just a little shot of compressed air added hp on a dyno. And compressed air is nowhere near as effective as when you are actually going for it. Its a well known fact that all non-ramaired bikes runs with negative airbox pressure when at speed. :fact

Originally posted by martinc Wrong! We did tests and just a little shot of compressed air added hp on a dyno. And compressed air is nowhere near as effective as when you are actually going for it. Its a well known fact that all non-ramaired bikes runs with negative airbox pressure when at speed. :fact yes Martin, I do understand what your meaning is, and my meaning is different..we are on the same page, what Im getting at is that most people think that RAM AIR is adding a positive effect to the airbox, when in fact its not, its just feeding the engine what it can draw into itself, your not making the box pressurized, your just relieving the negative aspect of it

Originally posted by Aron213 yes Martin, I do understand what your meaning is, and my meaning is different..we are on the same page, what Im getting at is that most people think that RAM AIR is adding a positive effect to the airbox, when in fact its not, its just feeding the engine what it can draw into itself, your not making the box pressurized, your just relieving the negative aspect of it In laymans terms,in order to acheive that,it got to pressurize :)

Originally posted by Aron213 All these mods are doing is creating a cold air intake, which is better than nothing at all, but I will point out that all the manufactures that have this always put it up near the headlight area to bring in what would be the coolest air, NOT down on top of the radiator where your actually heating the air back up before coming into the box...by putting the inlet down on top of the radiator I doubt your seeing any kind of HP increase. Manufacturers put the ram air by the headlights because its the highest pressure area. Not because its the coolest air. An engine will run better if you let it get air faster. you don't have to ram it in(it helps though) but on our bikes(02,03) it will run better because you give it the ability to draw air faster. the more air thats readily availible in the box for the engine to consume the better. Well, Better than it having to draw it in from outside the box when it needs it right then. If I am wrong please corect me MartinC sorry to revive this :crash

Talk about beating a dead horse,..... sorry i still havent put those pics up, i recently moved... and me and the bike are separated:no But im when it starts to get warm out again, i'll get some pic on here for u guys

Anybody have a working link to a page that shows how to do the cRAM AIR mod ?????

Just remove the plastic dividers at the front of the airbox...

Can anyone give me a working link for this mod? I have a ram air box of unknown manufacture (possibly BoxR) but I think I would rather try this than put the unknown in. The bike is an 03 and I see a lot of you are running 98-01s. Contact me on here or through email with any information.

So there aren't any downfalls so far?

I'll have pics up this week i promise...took them yesterday...just need time to upload etc...

Well Sorry it took me 6 months or so to put these up here... but it's winter here and i was in no rush.... but at least i did it. Any questions.....??

HAD TO CUT AWAY A BIT OF PLASTIC IN THIS SPOT... VERY SIMPLE.. A DREMEL OR GRINDER SHOULD WORK FINE, IT JUST MAKES ROOM FOR THE DUCT TO GO THROUGH

WELL HERE is the last one.... sorry the site wont let me upload BMP's.... but basically where that duct comes out through the front... i cut some of the plastic off of the air box right above it so i could get the duct to go strait through unobstructed.... i used some K&N air filter sealant where the duct connects with the box... to make sure there is no leaks... the duct is basically pointing at the front axle now that is all installed.... very simple... if u know how to ride a motorcycle u are capable of doing this problem free, just make sure nothing is obstructing the air from getting strait into the duct.

i did this mod yesterday along with my K&N filter...and OMG :scared it does make a big difference over 70mph!!!!!!!!! :thumbup

I also recently did this mod with a K&N filter, and can confirm that it pulls noticably harder, especially at the top end. I got my '02 up to an indicated 180. It seemed to have some more left in it as well. I didn't even richen up the ecu settings.

well it would lean it out if anything(more air), i still have no insurance, and havent really had a chance to check it out at a good speed.... only took it around the block to make sure nothing was wrong... but i cant wait, still need a good fuel map (or i'll have to make a custom) slip on micron, air box mod, velocity stacks and K&N filter... anyone happen to have :bow ?(doubt it) anyone else do this mod recently?

forgot to add that I also did the V stacks at the same time.

Originally posted by Gallahue Well Sorry it took me 6 months or so to put these up here... but it's winter here and i was in no rush.... but at least i did it. Any questions.....?? Im gonna do this mod when i get chance to, i got a bmc filter, just need the graves stacks and the PC3 usb now. The duct that you have pictured, is that standard or a add on? ive not looked at mine yet so i dont know. :thumbup

its a stock duct, except its flipped around the opposite way so theres more outside than in,, you'll have to trim a little plastic off the front of the box to get it to go strait through, you'll know what to do when u get it apart.

Originally posted by Gallahue its a stock duct, except its flipped around the opposite way so theres more outside than in,, you'll have to trim a little plastic off the front of the box to get it to go strait through, you'll know what to do when u get it apart. Excellent, i was thinking of gettin a spare air box off ebay just so i got the option of putting it back to stock if i need to. Will do the mod in the next few weeks hopefully, will let you guys know how it goes. :thumbup

yay! finally did this to my '03. BTW no offence to anyone but this "how to"sucks. The directions on what to cut and how to do this were either written on acid or for a different model R1, anyways I figured it out after taking my bike apart. The first thing i said was WTF! What a ghay design by yamaha, makes sense to me that they just wanted to keep debris out by not making it a straight shot into the airbox, muwhahahahaaaa, not anymore, cleaned the k&n and dremol'ed the ish outa her. Much crispier throttle response, heh and im not even tuned, SUPER LEAN great blue balls o' fire! This is definitely a must do, just get the tank and box out and you can see the ghayness within the airflow design, thanks to all who shed light on this MOD, it kicks ass.

well it is quite possible i was on heavy drugs when i wrote some of those explainations... but they came out clear for the most part... but at least now you know why this post hasnt gained "sticky" status. anyways if you get in there and suddenly dont know how/what to do then i dont know how u made it this far in life. it is very simple, its kinda hard how to explain where to cut with the dremel when ur typing it out. I still havent got a chance to test mine out and i did it almost 5 months ago.... anyone want to donate to my insurance fund? <-i WONT tempt fate and drive anyways... happy modding

Originally posted by dayofpain WARNING : before attempting any of these mods... know that i am just trying to help and anything you do to your bike, you do to yourself; and this site, its sponsors and i myself take no responsibility for any damage that may occur. whether it be on the road or due to neglegance. Now thats out of the way... lets get started.... This is for the 02-03 it changes the inlet flow charectaristics so that the air coming in is less turbulent. the general concensus is that this is not ram air. but it does work in a way very similar to the currently offered "ramair" systems. Most people have experienced a smoother accelleration and a general improvment in acceration above 70 mph. Have fun.... enjoy tinkering on your bike and be carefull!!!!!!! This article has been moved in its entirety. to this location. there are many more pictures, a better detailed walkthrough. and more, so check it out!. http://www.sbsource.com/viewarticle.php?id=3 Note: please keep responding to this thread to let people know what you thought about it. thanks! hey did this air box mod shortly after I bought my my 03R1. had the air box apart and was checking things out. when I notice that rubber intake boot. and desided to trim it and reversed it in the air box. did notice that its a good ideal to check and clean your air filter more often because particles from your front tire sling right in there. good mod thougth.:thumbup

so will this mod work for a R1 2001 ?

Will this mod interfere with my pitbull steering stem front stand?

Originally posted by crazyclimbr Will this mod interfere with my pitbull steering stem front stand? Hey whats up neighbor no this air box mod will not interfere with your front pit bull stand. the bottom of the air duct boot comes flush with the front surface of your radiator on top. if you need help let me know. I can draw you a picture of mod or just show you I'm local:fork PS was at the track wed for desmo club. forgot what vehical you said you were driving.nice track can't wait to ride it.

Originally posted by alexsilva Hey whats up neighbor no this air box mod will not interfere with your front pit bull stand. the bottom of the air duct boot comes flush with the front surface of your radiator on top. if you need help let me know. I can draw you a picture of mod or just show you I'm local:fork PS was at the track wed for desmo club. forgot what vehical you said you were driving.nice track can't wait to ride it. Hey Alex, I'm thinking about trying it this friday the 6th. I'm gonna take the afternoon off and do some maintainence (clean filter, change plugs) in preperation for a custom map on Sat. down in Costa Mesa. If you got some extra time give me a call 872-9671 or (201-9367)(cell) I'll probably be working on the bike into the evening as I'm not that fast when it comes to the mechanical stuff. Slow and steady you know;) My email is stevenmusick@sbcglobal.net if you have a drawing you can share. By the way I'm scheduled to return to Buttonwillow for 3 more days @ the end of this month starting on Memorial Day and the tues-wed. after that. It was only a few days after my last session that I started to jones for some more. If ya feel like hanging out @ the track on any of those days let me know. I can give you a ride or let you know where I'll be. Steve

do you cut off the inlets to the holes of air box then dremal the hole oval? :jump

Originally posted by eddy2000k do you cut off the inlets to the holes of air box then dremal the hole oval? :jump I do not know if your airbox is substantially different from the 02-03 airbox....which has a single inlet that is already oval in shape so I didn't have to cut anything except a plastic lip that would have prevented the intake tube from extending to the top of the radiator. Sorry I can't be of more help.

dayofpain, i made the mod to my 01's airbox this eve. hav'nt tried it out yet as tanks to the irish summer, it's pi*#ing down as usual. pics below (is this it more or less?). plan a run on a dyno next week if i have the sheckles. will post the results. BTW, tanks a lot for the info.:beer

and this is the aftermath.

ok, so today i did a air box mod on my 03, and man o man, i dont care what the hell anyone has to say about this being a bad mod, it rocks, from 1st to 6th from idle to redline its a rocket ship, always has been but now the faster I go the faster, I mean faster it wants to go, it pulls as hard as my old 04 did, but with more down low balls of the 03. I'm seriously over the moon. just gotta get Graves stacks now and a PC3r to get it all happier. i have a DNA filter and a oval yoshi slip-on.... This Mod cost me $0-00c..... completely FREE.... All i use was a hack saw blade to cut away the rain protection lip and a bit of the top part of the air-box lip that basically aligns with the rain protector lip and then I used the airflow tube already in the airbox and simply turned it around so that it pocked out neatly throw where I had very beautifully cut the shitty wall of plastic away, and bobs your uncle, ram air.... seriously big gains, no crap. it feels like that feeling when i first got the thing, brutal acceleration. this mod seriously worked for me. I must admit i did a very clean and professional job. It makes sense to have a more direct airflow. no flat spots what so ever. think of the graves airbox, well mine is basically like that now. Cost of this mod was a big fat zero.... It pulls like a mofo. 1st gear is insane now, it basically does not exist under full on acceleratin.. the best way to explain how it feels is to think of it like this, 2nd gear is like 1st gear and 3rd gear is like 2nd gear and so on. 6th gear on the highway pulls like a freak. oh yeah, once you get above 6000rpm, hold the freakin hell on, my old 04 use to pull like a crazy old woman after a certain rpm, now this 03 does it just as good, dare i say from my comparison better. Im over the moon. just think about the flow of air and its like yamaha put this damn air ram tube thingy in the box to be used in the way I have used it, backwards. the bike makes this beautiful induction noise now, sounds very much like how my 04 did, when you let off the throttle it gurggles like a wild bush pig, it always gurggled but now it really does.. it makes me horny. ;) it works. i dont know what the hell other ppl are doing wrong saying this mod sux or whatever, but for me, its fricken awesome. ;)

i do not know why the hell it double posted. oh well. whore on.. ;)

bump

THis mod definatley worked for me, i had a K&N filter and the stacks... full micron and the PC3 and between all of them it hauled like a SOB... 5th gear, 130mph catwalks, the mod definatly helps but i would definatly consider getting the stacks and filter (not to mention exhaust) and get a map made for your PC... cause changing the set up with out making a new fuel map for it wont help as much... and could turn out worse untill it gets mapped right :fact

yeah man, i just gotta get my hands on a pc3r and the graves stacks and i'll be set. by yeah, this mod rocks like a fat lady running. its that good. i must of done something very correct because its a flamin jet bike now.... ;) It's Alive, Its Aliveeeeeee.... ;) ;)

well let me know in the spring if u still havent found the stuff, i should know by then whether or not i'll be using my stuff again, the bike is wrote off completely but im waiting to see if i get another 03/02... untillthen im gonna hold on to everything, but if i dont it'll all be up for sale... but for now im not selling

Thanx man, I'll keep you in mind if i have troubles.... ;)

Linky No Worky It goes to some data base computer web page or am I just missing something?

i took the top of my airbox off and i dont have the velocity stacks that i saw on some of the other pics. am i missing something here? http://www.freewebs.com/kombikruiser/P2120005.JPG cnadian 2003 r1. Anybody?

wheres your last one?:confused:

Originally posted by 03 special ed i took the top of my airbox off and i dont have the velocity stacks that i saw on some of the other pics. am i missing something here? http://www.freewebs.com/kombikruiser/P2120005.JPG cnadian 2003 r1. Anybody? yep you have one missing

yeah i know there's one missing; i took it out to go parts shopping today. but what about the height diff in the stacks from some of the other pics...

Originally posted by 03 special ed yeah i know there's one missing; i took it out to go parts shopping today. but what about the height diff in the stacks from some of the other pics... When you see an 02 or 03 with the 2 inner stacks taller than yours that means they have purchased aftermarket velocity stacks (mine are from Graves) to help balance the intake and improve their power curve. Definetly a good mod to do. Cheap power.

thanks for the reply, just wasnt sure if that was a stock part or not. so if you get after market stacks, do you cut them with the oval shape to gain more of this ram air effect?

Originally posted by 03 special ed thanks for the reply, just wasnt sure if that was a stock part or not. so if you get after market stacks, do you cut them with the oval shape to gain more of this ram air effect? no, that's just for the 99 - 01 models. on the 02 -03 models it's not the stacks you cut, it's a small plastic piece near the inlet tube (which you are going to reverse to make the tube stick out over the radiator in order to get more direct air supply). When you pull the inlet tube and reverse it you will see the plastic ridge like piece that you will trim. It's pretty obvious. The stacks are installed just the way you purchase them without cutting them.

I just looked @ your pic again & it kinda looks like the air inlet tube is already reversed. Hard to tell from the pic because I cannot see the part of the tube that is sticking out the bottom but when the inlet tube is in it's stock position the majority of it is inside the box. Look @ it and you should be able to tell if there is more tube sticking out of the box than in it.

i see... i got that part all taken care of. so you're pretty happy with the graves stacks - are they worth the cash? are there other options?

I was happy with the $/benefit value of this mod.I bought mine off a forum member for $75 shipped which was a pretty good deal. I think you can get them from www.tobefast.com for about $90 plus shipping. I did a number of things in quick succession so I didn't ride a bunch with just the stacks, K&N filter and ram air mod very long. Soon after I added a full exhaust system, USB PCIII and had a custom map done. Additionally I removed the AIS and installed the Graves AIS plugs @ the same time.

I just did this mod today myself and I'm not so sure about the placement of the snorkel/tube. It seems to right above the hot air that rises from the headers/cylinder head. It ends just before the rad. Keep in mind this is with the bike in a heated indoors area on the stand and not moving. It's -10c w/ freezing rain and i wont be riding for another 2 months. Just curious if anyone else had any issues w/ the placement of the tube?

You got it right. With the bike moving the heat off the headers shouldn't be an issue. 2 more months without riding truely sucks. I almost feel guilty with the high 70's we had @ the beginning of the week. Dropped down into the high 60's today though brrrr.

Ok, I did the mod. I'm just waiting for some sunshine so I can test it out. I added a little bit to it. I took an elbow from a rain gutter from Lowe's and cut a little bit so it would fit just right above the radiator and direct the air into it better. I also used aluminum duct tape as a heat shield. I hope it works! Red= Pipe Elbow Blue= Airbox Gray= Existing airbox tube. http://f5.putfile.com/5/12723052549.jpg

hmm I've been meaning to do something like that as well.... to add to the inverted rubber snorkel thing ...the openings just seem way to small ! Would u happen to have any pics of what the rain gutter thing looked like?

No, not at the moment. I'll have to open her up again to get a picture, but its a basic half turn elbow for a rain gutter made out of plastic. You can get them at Lowe's or home deopt or any place that does gutters. Sorry that the graphics are kinda crude but they should help. This tube slipped perfectly between the radiator and the top of the frame and the beauty of it is, the plastic piece under the triple clamp has an upward slant in the back that directs the air right into it. I pushed the tube flush up with the airbox just for extra stability. Some simple cuts needed to be made though. About 2.5" will need to be cut off the end to be flush with the radiator. The radiator also has a mounting bracket on top of it, so just cut the tube appropriately to fit it. Also cut some off the bottom half so it doesn't mush up against the top of the radiator, but rather float on top of it. **It's advised to get some aluminum duct tape too. Just wrap it around the tube, especially the end touching the radiator. ** http://f5.putfile.com/5/12819534228.jpg I took mine out today and there is a noticable difference in the bottom end, though it is running a little leaner noted by a couple pops, but I'll just richen her up a little bit. (refer to post for Adjusting Air/Fuel) (http://www.r1-forum.com/forums/showthread.php?s=&threadid=62758&highlight=Adjusting)

Wish there was someone that lived near mass that did this mod. I am not crazy about doing work on my R1 alone. Would love to try this out!

Originally posted by sxlova07 Wish there was someone that lived near mass that did this mod. I am not crazy about doing work on my R1 alone. Would love to try this out! you only need about 2 different size allen wrenches to do this, its quite simple the only thing you can f-up is the tank-paint if your not carefull, bikes are like women, if you take it slow, you'll be safe, if you take it fast you'll be pregnant!

Hey guys, the link's not working and I'd like to check it out. Apologies for not searching more, I have to go out now and wondered if anyone could help me out for when I get back. I'm interested in the 02-03 R1's by the way. Cheers :thumbup

Right, I just did a good while's worth of searching this morning and can't find a good explanation with pictures of the airbox mod on a 2002-2003 R1. If anyone can help me out I'd really appreciate it as I'd like to investigate this further. Please feel free to prove my searching abilities are hopeless... Thanks in advance.

Right, I just did a good while's worth of searching this morning and can't find a good explanation with pictures of the airbox mod on a 2002-2003 R1. If anyone can help me out I'd really appreciate it as I'd like to investigate this further. Please feel free to prove my searching abilities are hopeless... Thanks in advance. I do not have pics but will be installing some slid stops next week and cantake some then but I do not know if you really need them. I think when you get in there you will see what people are referring to when they talk about trimming the plastic lip etc. I'm going to assume you know how to remove the tank and get to the airbox. Remove the airbox by loosening the clamps holding the airbox onto the throttle bodies. Unclip the electrical coonection on the side on the right side of the airbox and any airhoses.Lift the airbox off and disassemble by loosening all the peripheal screws and the center one. Once the box is open you will see the air intake snorkel. It's probably glued into place and has ridges that hold it into place. You will see what I mean when you get there. With some tugging you can pull the air intake snorkel loose from the box. Now reverse it and reinstall it aiming downwards. You will see how that will make it longer and reaching towards the front of the bike. I didn't have any glue so I just popped it into place and never had any problems with it moving. Might as well replace or clean your filter if it's an aftermarket one. Set the box aside and go look where this air intake tube in it's new configuration will now portrude. There is a plastic piece that sits over where the spark plugs are located. Look closely and you will see a lip that can interfere with the air intake tube new placement. Trim it down flush. I've attached a crude drawing to show you what I mean. Reassemble the airbox and reinstall it. You're done and now have Okie Ram Air. If you're not in a hurry to do this mod then next week when I install the slid stops I'll take pics and attach them to this thread.

Thanks very much for the reply mate, I really appreciate it. I've had a look and your description is very good. From looking at my airbox I came up with pretty much the same conclusion as to what the mod involved. I have my motor out at the moment (see my thread 'Headwork Winter Project' in the mechanical section...) and am going to give this a whirl at the same time. Thanks again :beer

it works ive done the same thing...

So I went to do the mod on my 2002 R1 (Canadian bike) and to my surprise, the "stacks" that you are supposed to make bigger into an oval were not there at all! It seems that the top of my airbox has no such thing. Perhaps it's due to it being a Canadian bike? Anyone else hear of that? See pics... First pic should be the top of the box and the second one is the bottom.

So I went to do the mod on my 2002 R1 (Canadian bike) and to my surprise, the "stacks" that you are supposed to make bigger into an oval were not there at all! It seems that the top of my airbox has no such thing. Perhaps it's due to it being a Canadian bike? Anyone else hear of that? See pics... First pic should be the top of the box and the second one is the bottom. That looks like a normal 02-03 airbox. It looks like you've pulled the rectangular rubber inlet tube out already and now you just reverse it and reassemble the airbox. I think the 98-01 bikes you have to oval out the passageways.

That looks like a normal 02-03 airbox. It looks like you've pulled the rectangular rubber inlet tube out already and now you just reverse it and reassemble the airbox. I think the 98-01 bikes you have to oval out the passageways. You are right on my 99r1 I did this mod as well and it was completly diff than the airbox mod for my 02 the newer bikes have a ram air style airbox when completed this is a very easy and worthwile mod on any bike tho:riding

The begining of this thread was about moding the inside of the box to create more flow then people got the idea of the ram air thing. I'm wondering if removing the snorkel that blows air right into the filter might hinder performance and flow characteristics of the airbox. I agree that having air being forced into the box is a good thing, does using the stock rubber snorkel take away anything?

The begining of this thread was about moding the inside of the box to create more flow then people got the idea of the ram air thing. I'm wondering if removing the snorkel that blows air right into the filter might hinder performance and flow characteristics of the airbox. I agree that having air being forced into the box is a good thing, does using the stock rubber snorkel take away anything? I think by reversing the snorkel the idea was to replicate the ram airbox you can buy for about $400. That box has a plastic intake tube that extends down to the radiator, maybe even a little past. I do not think using the stock piece reversed takes away anything away from the perfomance.

Anybody with a 02/03 who have done this mod can talk about what happens when riding in very bad rain, or when riding near 0 degrees Celcius (32F) ? I am having a PC-III installed, with the Graves velocity stacks, I already had a K&N, this mod seems interesting... the original link doesn't work, but it seems to be only reversing the intake tube of the airbox ? so this mod can be "reversed" if I ran into problems ? Thanks !

OK anyone who has a 2002-2003 R-1 that has done this Mod take a flash light and get up under the front end and look up above the radiator at the rubber snorkel that is now supposed be sticking out and allowing more air into the box. What does it look like? If you followed the instructions to the letter and then bolted the air box down with the small bolt in the front you will notice that the tube is now smashed down almost flat and closed off. At least that is what I found to be the case on mine. Explain to me how you got enough clearance to make it work. I removed all the plastic as instructed but when you clamp the air box back in place and bolt it down it still smashes the tube.

OK anyone who has a 2002-2003 R-1 that has done this Mod take a flash light and get up under the front end and look up above the radiator at the rubber snorkel that is now supposed be sticking out and allowing more air into the box. What does it look like? If you followed the instructions to the letter and then bolted the air box down with the small bolt in the front you will notice that the tube is now smashed down almost flat and closed off. At least that is what I found to be the case on mine. Explain to me how you got enough clearance to make it work. I removed all the plastic as instructed but when you clamp the air box back in place and bolt it down it still smashes the tube. I fabricated a small sheet metal "snorkal" no stick out further, its worth doing my friends 03 with just stacks, bmc filter and that done made 147 rwhp, mine with a full system, stacks, air filter and slide stops made 153, its the best bang for your buck...

the link doesn't work for me.. all I get is a page with a picture of and old man and a little girls face... is it just me?? or is the link too old now?!! I want to do this mod! I mean since my bike is apart and al right now...

OK anyone who has a 2002-2003 R-1 that has done this Mod take a flash light and get up under the front end and look up above the radiator at the rubber snorkel that is now supposed be sticking out and allowing more air into the box. What does it look like? If you followed the instructions to the letter and then bolted the air box down with the small bolt in the front you will notice that the tube is now smashed down almost flat and closed off. At least that is what I found to be the case on mine. Explain to me how you got enough clearance to make it work. I removed all the plastic as instructed but when you clamp the air box back in place and bolt it down it still smashes the tube. ouch ! bad.... pics ? which plastics did you remove ? (the original instructions URL no longer works...) thanks

...specially when the atmospheric pressure sensor is OUTSIDE the airbox... :lol :bow anybody was mod-crazy enough to relocate it ? :eek: hahaha ! So Martin, you didn't do anything to get more air in on yours ?

Nothing,I mean NOTHING escape my attention...lol http://www.electricsupercharger.com/ Won't work... would need completely removing the air box and tubing everything. Doable, but the big problem is; this thing will suck the amps out of your battery. (even on a car that may happen... look at the specs !) However, it would give a pretty stable pressure compared to the ram air. But personnaly I find questionable the use of a FAN in the product, instead of a compressor.. ? but if it really gives 1 atm thats should be enough already for a big boost over stock.

looks interesting I'll have to read through later.

talk about back from the dead. well since there are some NEW developments let me say what we actually did forever and a year ago. OK. remove tank remove airbox. trim lip on aribox down to nothing. this lip extends below the screw at the front of the box and BLOCKS the air inlet for the express purpose of; well, being lame. take a razor blade and score the plastic divider thats on the bike itself that also is inpeeding the direct flow of air. remove the divider. discard and remove rubber inlet tube. when we dyno tested this in las vegas at a west coast meet. she made significantly more power doing just the plastic removal. when i first dyno'd my own bike i had my snorkel reversed and the bike was choking at the upper levels. hence why we all discarded our inlets. it pretty much made my bike untunable. this was never mentioned i think in the thread because well there arent many times when you can tell an enthusiast to discard a bunch of crap off their bike and cut some stuff out and youll make more power and be lighter. in other words you tell someone to throw something useless off almost never do you get the question "are you sure? i think i can use it as brake ducting!" yeah i know its not much but speaking as someone who has changed out almost every single bolt on his bike for titanium, im after every ounce i can get. there is even another step to this mod that lowers the ram air efficiency but increases air flow dramatically and makes even more power. (yes dyno proven) but i wouldnt recommend it for anyone not getting tuned professionally. therefore it will NOT be posted here. as far as homemade tubes and whatnot. yeah im sure they work to an extent but how bout you just kick down that money for the graves carbon ram air inducer. it mounts to the front fender and literally tosses air in that direction. i bet money that will make more power than pressurizing the airbox that extra .2%. i never tried to fab something as i went to (stage 2) but i do have the graves piece and i know the airbox gets a TON more air now. my 2 cents take it for what its worth.

OK anyone who has a 2002-2003 R-1 that has done this Mod take a flash light and get up under the front end and look up above the radiator at the rubber snorkel that is now supposed be sticking out and allowing more air into the box. What does it look like? If you followed the instructions to the letter and then bolted the air box down with the small bolt in the front you will notice that the tube is now smashed down almost flat and closed off. At least that is what I found to be the case on mine. Explain to me how you got enough clearance to make it work. I removed all the plastic as instructed but when you clamp the air box back in place and bolt it down it still smashes the tube. and thats the reason we ALL threw our snorkels out.

talk about back from the dead. OK. remove tank remove airbox. trim lip on aribox down to nothing. this lip extends below the screw at the front of the box and BLOCKS the air inlet for the express purpose of; well, being lame. take a razor blade and score the plastic divider thats on the bike itself that also is inpeeding the direct flow of air. remove the divider. discard and remove rubber inlet tube. . OK take a look at your photo that I jacked and put a line on Is this the lip that you now have completley removed? Am I on the right track here? Thanks

great write up.