Turbo for international C

Jeffchairs

New User
When I was a kid we did a lot of antique tractor pulls. I have a international B . We went threw and balanced the motor found a propane head , did a custom ground cam. All together it turns about 3800 rpms which is actually governed. Well now we are gonna put the motor in a C chassis.I would like to put a turbo on it. Does anyone have an idea of what size I should use? Any help would be appreciated thank you.
 
Used one off a small 4 cylinder car with waste gate turbo.Also ones used on motor cycle .Google for one.
.
 
How much boost should I put to it? I think our compression is at 10:1 ? Have you had good results from turboing these small engines?
 
A 6:1 compression ratio and 15 psi boost will near double the HP. way high octane fuel will be needed. Putting a blower
on 10:1 compression ratio is limited to small boost levels and limits the amount of boosted fuel/air that can be
introduced. Jim
 
Jim's suggestion implies, if I am not mistaken, that you are better off starting with flat top pistons and distillate or kerosene head, which yield a compression ratio of about 6:1, and then add a turbo.
 
Just remember that your working with only THREE main bearing . Like jim said ya need to decompress a bit now as to going that low UMMMMMm myself i get a little gooofy but the last thing ya want to do is throw the crank out on the ground half way down the track , Don't ask how i know .
 
(quoted from post at 04:52:01 01/09/18) 3800 rpms is quite ballsy in my opinion with these old flywheels.
I was told by the machinist that helped with the build years ago that if we switched flywheels we could turn it harder and make alittle more power.
 

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