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Farmall & IHC Tractors Discussion Board |
Re: Re: Re: H Rebuild
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Posted by Steve - IN on July 24, 2003 at 18:25:34 from (12.223.205.149):
In Reply to: Re: Re: H Rebuild posted by SCCA SOLO on July 24, 2003 at 17:20:55:
SCCA Solo, The H doesn't corner very well -- what are you going to do with more high end horsepower? Couple of things -- step back and look at the cast manifold on ONE side (not cross flow) of the engine and the little carb on the inlet. Anymore questions on where the bottle necks are? Seriously, think headwork - by itself -- will do you little good without a tubular manifold and a bigger, or multi throat carb? And to take advantage off all that, you'll need more lift and duration on a custom ground cam, maybe a crank triggered igntion that's stable at high RPM?, etc. etc. Next question is why are you hot rodding it? The H engine is made to shine at high torque, low RPM situations -- and not high RPM horsepower. The whole engine and drive train is setup for torque, and not high end horsepower. I'd think you'll need to change a lot more things to take real advantage of more head flow. Re compression ratio -- you might get nearly the results at half the effort by using Occam's Razor -- that is, use white gas, Coleman fuel, etc. with lower octane that's matched to the engine instead of changine the engine to mate with higher octane gas. Sure, I understand where you're coming from -- 9 yrs Natl. License running FF, FC, FSV, FA and USAC mini-indy. I also have an H. It's designed for low end torque, not peak HP at 10,000 RPM. So for my money, you're better off rebuilding to a good stock setup with the H and getting your 3G turn jollies on something with a lower CG that was designed to rev high and run fast. Steve
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