GRAVES VELOCITY stacks

Well I just got my velocity stacks from MADCUBAN on friday. I installed them and it took about 15-20 minutes including clean up. After my first ride/driving impression, I must say these little guys definatly gave my R1 some new midrange punch. I had a full tank of gas and the front whell cam up effortlessly at about 5K RPMS. It seems to have smoothed out the powerband a bit also, so I think it works great with teh Full Ti exhaust from graves also. I have a PCIIIr but I did not remap it yet. I was tempted to try the one graves has up on www.powercommander.com, it says: Graves Motor Sports full titanium system, Race Kit velocity stacks, Stock air filter, On/off throttle transition fuel added for "Race Use Only" Does anyone know wha the hell the "ON/OFF throttle transition" is??? Please let me know any info if you have it. I will probably load it today or tomorrow, I just wanted to get your guys thoughts. So, in the end, the $85 for the stacks was worth every penny. Has to be the best bang for my buck so far. I recommend them to everyone.:thumbup

no one has thoughts on the "on/off throttle transition" ??? thanks again!:yesnod

i cannot say i know what the heck they are talking about but i will do my best to find out for you

on typical fuel inj bikes on off throttle is abrupt. this is right when you get on the gas from off throttle or when you release the throttle from high revs. early F.I. systems were not that good. honda had this on the 929's. getting on the throttle the FI would be jumpy like the bike needed rejetting. changing the air flow such as these stacks could affect the on/off throttle reponse. but if you dont notice it ...dont worry bout it!!

if you look at a printout of the graves map....it is very rich at low rpms. i would say that they are talking about more gas right away and they are calling it on/off transition. just a guess but the maps are different than all others at the first rpm range.

I wonder if it was meant for race fuel also??

Well, to keep you guys updated, I switched my MAP last night.... I had the powercommanders version for the graves with the full exhaust and stock air filter. I put on the user submitted one by Graves which is for the full Ti exhaust, velocity stacks, etc... Well I did a compare on the computer of the two maps, the graves does changed a lot from the original one I was using, more fuel down low and chnges everywhere. On the timing, i notice nothing was on the new one vs. the old one which had minor changes. So the test ride to work..... WOW, it seemed much faster, pulled much harder. Almost like a new bike. I recommend it. I still do not know what exactly the "ON/OFF fuel transition" is but the bike is very streetable and doesnt seem weird at all.

Hey Wicked thanks for the update. I was wondering if there is one thing you could check since you tried this new map. Look at your down tubes coming out of the motor (exhaust tubes) and see if they are turning more blue with this new map than they were with the old one. I have a very Similar setup and the first time I ran it i put every thing on, except I did not remap it, just ran it with the stock map and my header tubes turned very blue indicating a very lean mixture. The bike also ran a little hotter than usual. Which it should have run this way since the bike is getting more air into and out of the engine without the correct amount of fuel. Just curious to see if this new map you tried is producing a lean mixture.

well from the looks of it, and i will check again, the new map is richer. It has more fuel at the bottem end and throughout in comparison.... ill keep ya posted

Disclaimer: 1st post from a lurker. Apologies if there is some type of newbie etiquette that I don't know about. Anyways, I got a question for y'all. I have a Yosh EMS setup for my bike. Looking at the UI for both the PC and the EMS, it appears that the two systems are functionally equivalent. Furthermore, I have read a comment from someone that asserts that the PCIIIR and the EMS are identical underneath the packaging. So, here's the question: Does anyone if PC and EMS map settings are interchangable? Thanks, -9

I am not sure personally, but welcome aboard to the forum!

thanks. I'll just try it to see what happens. Currently, I'm running the "stock" Yosh map with my full Yosh RS3 exhaust. -9

i have a 2000 r1 does someone make velocity stacks for it.

Yeah will they work on the pre 2002 bikes? I want some stacks!

Hey Wicked, Thought I would keep you updated since are setups are so similar. Well I tried that same map you did and wow!! what a difference. It does seem like a whole new bike, I didn't think I was going to get that much more power over what I already had but just goes to show you. But I wonder why they have "for race use only" on the footnotes. I thought at first it might be because the map was lean but after doing some comparisons it doesn't seem that is the case. Is your engine running any hotter since this new map? Mine seems about the same. Just Curious

I put my stacks on last night. Easy to install, but my dumb ass tightened the airbox screws too tight and now there are small cracks on the outside of the airbox mounting holes. It was getting dark out and I was trying to rush it. It won't effect the airbox but still a dumb ass move. :iamwithst Oh well, guess this means that I'll have to get the Graves airbox now. B

I checked factorypro.com makes stacks for the 00-01 r1's

Yes I can get velocity stacks for pre-2002 R1's call me at 1-866-300-4930

Originally posted by Firstbike Hey Wicked, Thought I would keep you updated since are setups are so similar. Well I tried that same map you did and wow!! what a difference. It does seem like a whole new bike, I didn't think I was going to get that much more power over what I already had but just goes to show you. But I wonder why they have "for race use only" on the footnotes. I thought at first it might be because the map was lean but after doing some comparisons it doesn't seem that is the case. Is your engine running any hotter since this new map? Mine seems about the same. Just Curious do you have the ram air box??? if so how is it?? No, may bike is running the same temps as it used to, but just runs MUCH stronger. I e-mailed GRAVES yesturday and I hope to hear back from them today. I asked if that was the reccommended MAP and also I asked what the "on/off fuel transition" is. I will keep ya posted once I hear back from them. :thumbup

Hey Wicked, Thanks for keeping me updated.:thumbup I do not currently have the graves ram air box on my bike, but it is on order and I should have it in the next 40 days according to mike at McCoys I was told the box should provide an additional 4-6 horsepower over what I am currently getting. After the box I am taking my bike to have it dyno tuned and I am expecting to get about 155- 160 to the rear wheel! After I have that done I will be more than happy to share my map with you I'll let you know

Hi sorry to be a skeptic but where did you get an airbox for your 2002 so fast. There not even finished with testing yet.:eek:

Hey Madcuban, I don't actually have the box in my possesion it is on order I hope to have it in the next 40-45 days But I thought I would list it because it has been paid for along with my other stuff:)

Hey I just ordered the velocity stacks and a pcIIIr for my 02 silver R1. I'm having buyers remorse...$440. Someone please console me and assure I will be happy with my purchase. Thanks in advance.

quikag, You did the right thing. You can use the PCIIIr and the stacks with any exhaust system, and any intake system: stock or graves air box. The mods that you just bought will work with any future mods that you decide to get. Do you have a slip on or full system? I really regret getting the PCIII and not the PCIIIr. I think you made a good decision and you will be happy. B

sounds good thanks! is there a waiting list for the air boxes that I should be getting on?? where and how much is yours?

Go to www.tobefast.com talk to mike if your iterested in one. They are $299.00 dollars. And yea I think there is a waiting list he told me about 60 days when I ordered mine and thats been about 15 days ago He told me that if I did not decide to order the box with the rest of my stuff that could be a long wait if I decided later to order it like 5 months So I decided to pre-order it.

I hope I am the only one to state it....but I actually LOST HORSEPOWER after adding the stacks. I went from 140.6 to 137.8 I have ran the bike two times now with the same results.

I hope I am the only one to state it....but I actually LOST HORSEPOWER after adding the stacks. I went from 140.6 to 137.8 I have ran the bike two times now with the same results. Do you have a chart of the results before and after dyno results? Is it possible that the loss was peak HP and that you gained more midrange or, at the least, smoothed out your curve?

newbie on engine mods. what are velocity stacks? and also a ram air box i understand, but are their major mods to the bike to inastall on an 02'? correct me if i am wrong, on a ram air set up the hp gain increases with speed, right? little to none at low speed because of no air pressure.

heres what GRAVES had to say about the map I put on: "The fact is that different bikes will run better with a different map, depending on location and riding technique. In the end, it's all down to rider preference. The "ON/OFF fuel transition" means that fuel is added on engine over run - i.e. when the throttle is closed- so as to avoid the low spot when the throttle is re opened. While this map should be good for racing or very hard street/ canyon riding, it uses more gas and may foul the spark plugs after a while." I thinkI might fine tune the map to ease the amount of fuel, but I am happy and am going to stick with it, Ill just change the plugs every 6 months if needed.

Sundowners, Thanks for the reply!!! I have a micron high mount (silver fade) slip-on. Does anyone know if installing the stacks/pcIIIr would possibly void the warranty. Is the installation difficult? Thanks for all the help guys. Chris

Originally posted by quikag Sundowners, Thanks for the reply!!! I have a micron high mount (silver fade) slip-on. Does anyone know if installing the stacks/pcIIIr would possibly void the warranty. Is the installation difficult? Thanks for all the help guys. Chris Well I would assume any mod would void warrenty, but save your stock parts and if you ever need to, just put the stock stuff back on! the PCIIIr is very simple to install along with the stacks!!

Not sure if this was asked yet but if I add the velocity stacks do I need a PowerCommander? I already have a Devil high mount.

I would not say you need it, but I would highly recommend it. That way you can take adantage of your mods....

Thanks Wicked, I'll wait to get the P.Commander first.

mlafrance, here's a pretty good deal on the PCIII: http://www.r1-forum.com/forums/showthread.php?s=&threadid=10978

Has anyone tried these stacks on a stock bike? Would there be any differance? Does changing the stock airfilter to say a K&N or BMC help?

Hi Luma, check the pic of the dyno sheet on the group buy forum for the stacks. That is on a stock bike, it clears up the dips in the power band and give's 5 HP. A after market filter would help but I'm not sure if it would be noticable on a dyno. Let me know if you have anymore questions. Also I have them in stick if you want to buy 1. 1-866-300-4930

Is it under the DEALS section? I can find two references to the stacks but no chart.

yes "DEALS" sorry. I'm the 1 posting the sale and the pic

Check out this thread before you make your choice.... http://www.r1-forum.com/forums/showthread.php?threadid=10928