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Steve, Thanks for the suggestions. I may indeed go to fuel injection, I ended up having to on my sled because I couldn't get it to run right. I'd love to see the scans of your intake manifold. The F3 has 12:1 compression, I'm assuming you dropped it to 8 or 9:1. Did you get new pistons, if so, where? thanks, Dave. Steve Leonard wrote: > Dave, > One more "tool" I can't live without is Performance Trends: Engine Analizer > software. It is a dyno on your desktop. > For comparison to an actual dyno, it was 5.5% off. They include a compensation > factor. It sure answers a lot of questions before you get to a dyno. > (www.performancetrend.com) > > Steve L. > > Dave Morrill wrote: > > > Steve, All, > > Thanks for the replies. Steve, where did you mount the aerocharger? It > > didn't look like it would fit in the front of the bike with the stock fairing > > on. Did you drop the compression ratio? Pretty impressive hp numbers on your > > project. Do you have any pics? Especially of your intake manifold? > > Unfortunately I will be using carbs early on and wont expect that kind of HP, > > but would love to learn from you. > > > > The best Gerhart at aerocharger would do for me is $1500 which is pretty > > pricey. I can get a Garrett T-2 for $350, but there is the added cost of the > > oiling system. Pretty sure I'm going with the T-2, I may even order it today. > > > > After spending some time on the bike, we were considering mounting the > > turbo in front of the rear tire to the center stand mount. This would save us > > much welding on the exhaust manifold as the 4-1 collector is right there. > > However, the turbo will be below the oil pan, requiring an oil scavenge pump. > > Anyone doing this? What are you using for an oil pump/oil return system. Is > > this a bad location? > > > > thanks, > > Dave. > > > > Steve Leonard wrote: > > > > > Dave, > > > I turbocharged a 95 F3. It was for a Formula SAE car. We used an model > > > 93A Aerodyne turbo, MoTeC M4 Pro sequential fuel management system. Our > > > rules called for a restictor in the intake (ala NasCar) to keep HP down, > > > with the restrictor we made 98hp at the countershaft. With it unrestricted, > > > a 8lb spring in the Aerocharger, 116 octane VP we made 153@11750. ( the > > > clutch set-up we had wouldn't hold anymore boost). I can be more specific, > > > let me know........... > > > > > > Steve Leonard > > > > > > Dave Morrill wrote: > > > > > > > Hello, > > > > I'm starting to do the homework on turbo-ing my CBR600 F3. I know, > > > > I know, not a lot of displacement here, but I already own it and have > > > > not seen anyone attempt this on this bike. I've designed and built my > > > > own turbo system for my snowmobile, it works, so I know what it takes to > > > > pull this off. > > > > I'm targeting 150 ish HP, around 8-9lbs boost. Looking into Garrett > > > > T2 or an aerocharger turbo, blow through the stock carbs. The bike has > > > > a 2 stage ram air system, with a solenoid to switch between the 2 ram > > > > air bowl air pressure lines. I will be removing this and building my > > > > own intake. Would like the boost to come in low, around 4-5000 rpm or > > > > less. > > > > > > > > Questions: > > > > 1. I have no experience with the CV carbs. I'm assuming these can be > > > > used without major mods (plus the plumbing is already there to > > > > pressurize the bowls). Literature suggests slightly stiffer springs and > > > > stage 3 jetting with richer mains. Do you guys install larger needle > > > > and seats or adjust float level? > > > > 2. What is the stock fuel pump capable of (psi, hp)? I'm planning > > > > on replacing this pump and adding a high flow pump and boost sensitive > > > > fuel pressure regulator with return to tank. Is this what most of you > > > > carb guys are doing? > > > > 3. I use a popoff valve on the sled, am planning to do so here. > > > > However, I know Rick uses a priority air inlet valve also, are the > > > > performance gains worth it? > > > > 4. Any suggestions on the intake manifold? > > > > 5. Don't have room for an intercooler. How many of you are running > > > > without one? What kind of boost are you running on pump gas? > > > > > > > > any other tips welcome. > > > > > > > > thanks, > > > > Dave.