Big thanks to everyone on this forum; it has been very helpful to have so many threads and experienced members to learn from. I bought my 03 Turbo Busa about 6 months ago with a RCC turbo kit already installed. I'm kind of a perfectionist and right after I got the bike I tore it down to the bare frame. Every single nut and bolt has been sonic cleaned. The frame was stripped and repainted, along with the plastics. The engine was completely rebuilt with a fresh Millennium block, ceramic coated/friction coated skirt CP turbo pistons. I also had the original turbo sent off to GPopshop.com to be converted to full dual ball bearing with ceramic coated turbine and compressor housing. It's now a full water cooled turbo, so oil coking and turbo cool down time has been eliminated. Injectors have been flow benched and the waste gate spring has been changed from 8 pounds to 18 pounds of boost. I'm also using an Aquamist 100% straight methanol injection that comes on at 8psi. There is a second stage of water injection that comes on at 16psi. The water jet is only .5 and the methanol injection uses 2 .7 jets on the plenum. The goal was to get 350+ RWHP with 92 octane pump gas with ZERO detonation. Since these amazing machines don't have any knock sensors, every step was taken to ensure the proper octane and anti-detonation requirements have been met. The whole point of the methanol & water injection was to ensure that some random bad gas wouldn't spell disaster for the bike. The ECU has been reflashed by MPS racing with 2 degrees of timing pulled. The Aquamist pump has a simple booster pump to ensure that the methanol flows at the desired levels. The water injection jet was used primarily to keep detonation in check but also to keep EGT in line. All the gears were send to R&D to be undercut with billet input and output shaft. The valve springs, timing chain and shift forks were all cryo treated and the valve springs were also friction coated to reduce heat. After much research I have found that most guys with big power generally do a tear down once a season to replace the valve springs. The cool part about this build was it was designed to be done 1 time only, no yearly rebuilds. The cryo treatment keep the springs from losing their seating pressure and the friction coating greatly reduces the heat from the constant wear and friction. Everyone I know says this project is complete overkill but I'd rather have it overbuilt and underrated rather than overstressed and under built. Carillo rods were used and the engine and rod bearing were also cryo treated and friction coated by Calico coating. Engine bearings are just too expensive to replace all the time and with proper pretreatment there is no reason to replace them assuming there is proper lubrication/film strengh. I'm building this bike to play with for a while then sell it. I have receipts for everything and the project is nearly complete. There is not a scratch anywhere and attention to detail was taken with every step.
Big thanks to Steve @ Smitherscustoms. I'm luck to have such a great shop so close to where I live. Steve was very patient with my engine build and time it took to get everything all together. There were many nontraditional things done to this bike that I have used and done with car engine builds in the past. Motors are motors and I didn't see any reason as to why the same principles would not work on the Busa. One thing that I have noticed is that almost everyone only used water injection. But I can tell you from experience that pure methanol injection yields much better results than say water or 50/50 mix. The methanol give you more torque considering the slower burn rate but the water injection was needed to keep internal temps in check. I know that most bikes don't need this because our bikes only need about 8 seconds to reach almost 200mph but I wanted the engine to be able to sustain a constant load without the engine melting itself down. Once again, major overkill, but the next person who owns this bike will appreciate it.
Here is a link to more pictures:
Pictures by trefling - Photobucket
Big thanks to Steve @ Smitherscustoms. I'm luck to have such a great shop so close to where I live. Steve was very patient with my engine build and time it took to get everything all together. There were many nontraditional things done to this bike that I have used and done with car engine builds in the past. Motors are motors and I didn't see any reason as to why the same principles would not work on the Busa. One thing that I have noticed is that almost everyone only used water injection. But I can tell you from experience that pure methanol injection yields much better results than say water or 50/50 mix. The methanol give you more torque considering the slower burn rate but the water injection was needed to keep internal temps in check. I know that most bikes don't need this because our bikes only need about 8 seconds to reach almost 200mph but I wanted the engine to be able to sustain a constant load without the engine melting itself down. Once again, major overkill, but the next person who owns this bike will appreciate it.
Here is a link to more pictures:
Pictures by trefling - Photobucket
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very nice. Can't wait to see the finished pics and dyno chart! 
. . . the cooling system on a busa is already smaller than it should be . . . 
