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WERA? ¯\_(ツ)_/¯ #21
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Discussion Starter · #21 · (Edited)
As I was prepping the bike for the track, I noticed an intermittent parasitic draw issue where sometimes the battery would drain below 10v. A couple conversations with Braydon at Speedcell, and I was sent a 5.0Ah SBK Battery with a custom harness for quick disconnect

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Mounted on the bike
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Building a superbike engine is quickly becoming something that sounded totally cool in the beginning without realizing the amount of effort I need to put in outside of actually building the engine itself 😂

Once I was debriefed from Jozef on the condition on my engine, the decision of a complete refresh was inevitable. That being said, the build price is what it is, but 'there is always the option of improving the engine performance while being serviced; by way of porting the cylinder head, increased compression via head gasket, different degrees of timing, boring, and other methods.

As I was working with Freddy at @superbikeunlimited for the majority of my hard parts, he mentioned having a couple sets of YEC billet cams with billet sprockets for sale. When I gave him a call, I brought up the cams and told him the plan to go superbike, and that’s when the game changed...

Superbike Unlimited was able to source a cylinder head. Not just any cylinder head, but a FACTORY Yamaha cylinder head, from a MotoAmerica bike 🏁 The ported, epoxied, high output beast that screamed down big hp tracks like COTA and RA.

Freddy was able to put together the whole superbike engine package for me

  • Factory Yamaha Cylinder Head
  • YEC Billet Intake + Exhaust Cams + Sprockets
  • YEC Valve Springs
  • YEC Velocity Stacks
  • Oversize Radiator and Oil Cooler (currently at Attack)
Supply drop from Superbike Unlimited
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YEC Billet Cams (Gen III) and Sprockets
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YEC Velocity Stacks
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The radiator was originally sourced to Westby Racing from Attack Performance, so when Freddy sourced the radiator from Westby, they sent it back to Attack along with some other radiators. Attack does some pretty cool things when it comes to engine assembly and packaging, so there are a lot of things I'm perfectly fine with them taking the lead on prep.

Attack Performance "Plug & Play" Superbike Engine Package (📷 cred. IG @JRShof)
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WERA? ¯\_(ツ)_/¯ #21
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2,580 Posts
Discussion Starter · #25 ·
Nothing with the crank?
Nope. Doing absolutely nothing to the crankshaft or lower crankcase. Had some pretty good talks with Attack, SBU, as well as other well respected Yamaha race teams. I'm not concerned about a crankshaft failure at all. EDR makes a stud bolt kit for the R1/R1M, which I may consider, but you can't swap the 2015 crank with a newer one.
 

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WERA? ¯\_(ツ)_/¯ #21
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2,580 Posts
Discussion Starter · #26 ·
Ordering up parts for the build, one major component that is hard to overlook is an aftermarket slipper clutch. Suter has been the goto for Attack, so instead of throwing a fresh clutch kit in an OEM setup, Suter is going in...

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Soaking fresh frictions in 300v preparing for install...
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Superbike Unlimited also supplied a Titanium Engine Bolt Kit from Pro-Bolt USA
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Before heading out to Buttonwillow to get more seat time, an MWR Air Filter arrived, so I installed it along with the YEC Velocity Stacks just to see if there is any improvement in performance
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Well done iGoldeneye!

Its so inspiring to see someone go all in with their builds and share it with a community like this. I really respect that. I have been building and and tracking cars for a while now so I know the commitment and investment involved.

Thanks for taking your time with your posts and images.

Do you feel like you can dial the bike in more? How does the bike compare to stock? And time comparisons?
 

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Did the motoholders carbon fiber intake work with stock body work. ?
 
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WERA? ¯\_(ツ)_/¯ #21
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Discussion Starter · #30 ·
Did the motoholders carbon fiber intake work with stock body work. ?
Yes it does, just a bit of finesse to get it all together, but yes, it fits. I've since switched over to an oversized radiator and race bodywork full-time, but I believe I have pics of the intake with the R1M OEM bodywork (which I am currently looking to sell lol)
 

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WERA? ¯\_(ツ)_/¯ #21
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Discussion Starter · #31 ·
Sorry for the delay guys, but I have some HUGE updates regarding the engine build and the bike as a whole, so STAY TUNED! Check my "Quarantine R1M Highlights" on my IG (@igoldeneye21) for immediate photos and updates, but I will doing a detailed write up of all progress and the "completed" superbike engine build here shortly!
 

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WERA? ¯\_(ツ)_/¯ #21
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Discussion Starter · #33 ·
How you gone post a link and ain’t no update. 😂
LOL oh trust there is a HUGE detailed update coming, but it's going to take a while to write and post pictures of all the details... I'm posting the superbike engine build done by Attack Performance from start to finish, so get your popcorn ready... I just got the dyno chart today and pick up the bike this week 😎
 

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LOL oh trust there is a HUGE detailed update coming, but it's going to take a while to write and post pictures of all the details... I'm posting the superbike engine build done by Attack Performance from start to finish, so get your popcorn ready... I just got the dyno chart today and pick up the bike this week 😎
🍿
 

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WERA? ¯\_(ツ)_/¯ #21
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2,580 Posts
Discussion Starter · #36 · (Edited)
Prior to the engine build, I did install the Suter and receive an oversized radiator from Superbike Unlimited (Attack sold to Westby, SBU sold to me and sent it back to Attack, Attack serviced it and gave it to me 😂) The install was pretty straight forward, minus the need to fab up a new lower bracket to support the oil cooler section. Jozef from Attack gave me some tips and pointers on the install which made it even smoother 😎

Suter Installed with a fresh clutch pack

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Big ol' radiator

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Tear down for install...
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While waiting for a date with Jozef and the wizards over at Attack, I did a number of track days trying to get as much seat time as possible without blowing up my clapped out engine 😂

Buttonwillow
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Laguna Seca
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(the homie #36 Jason Uribe lurking before passing me in the next couple corners 😆)
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Anywho...


Aquiring superbike parts are just one piece to a larger equation. The condition of the current engine, the race parts you use, how they are set up, and who builds the engine are critical pilars when deciding to go down the path of building a superbike spec engine. Given the condition of my engine after tear down and inspection, it was evident that I needed to replace nearly everything due to the extensive time on my parts.

I chose Attack Performance because vast amount of knowledge and skill with developing racebikes. They are the Factory Yamaha team, and Jozef is one of the top engine builders one could acquire, backed by Richard Stamboli’s wealth of knowledge and understanding of these machines in particular. I had the opportunity to take advantage of propriety knowledge, along with familiar parts. The decision was a no-brainer.
 
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