Stroking an inline 4 Turbo

[derf]

Originally Posted by nhgunnut

Not a big fan of chrome. Or other "Aesthetic" changes (frankly i find that and stretched arms on bikes that don't drag goofy and not my style of goofy) This is my primary commuter not a bike night queen.
Using stock pistons and a standard 1mm base plate spacer and stock length rods actually drop the compression (If I were going normal aspiration I would use the gen 2 length rods) You are right about the the port fueler
www.turbosystem.com/cycle/suzuki/Busa Portfueler.htm it would not be ideal for a drag bike. It has been a great rig for me . Tied to a MAP sensor it eliminates that goofy falling off a ledge feeling you get using just the S2000 injectors or the Just splashing in extra fuel with and FMJ. But as you point out it can "puddle" under heavy load.
I have begun talking with drag guys that Build the 600 hp bikes using the Larger Garret turbos. They oddly enough are liking the Math Seems like with the right degreeing on the cams I should be able to see 150 foot pounds or torque in the 4800 to 5400 rpm range. with corrected RWHP in the 270 range. My goal is more usable torque both at normal pressure and under boost. I am leaning heavily in this direction. Now I just have to identify the FELONY FUNDING plan I am going to use

Also, what is your intended use? Drag racing? Remember, drag racers might only ever see a few hundred miles of hard use before they replace an angine, if you are looking for any typer of life expectancy then what you are thinking about is a bad idea

[nhgunnut]

Originally Posted by derf

Also, what is your intended use? Drag racing? Remember, drag racers might only ever see a few hundred miles of hard use before they replace an angine, if you are looking for any typer of life expectancy then what you are thinking about is a bad idea

I am not a racer nor do I intend to be .. The Busa in my opinion is a GT bike but the Gen 1s had to weakeness IMO Brakes were 90s I have upgraded so that is resolved... cammed and geared for top speed low end is lackluster. To some degree the gen 2 bikes address this. (My B King comes off the line almost as hard as the Ducati it replaced. with Brakes that are every bit as good) My goal is increased torque acrossd the curve but especially at the low end. that combined wth an earlier spool up for the extra volume. Life expectancy on low compression turbos are not significantly different that stock bikes. Data indicates the weakest point in this kind of conversion is of all places valve guides. I will be doing the Oil Galley conversion at the same time (assuming I go this route.)

[No Worries]

This book on turbocharging is supposed to be good: http://www.amazon.com/Motorcycle-Tur.../dp/1884313078