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Old 01-01-2013, 09:30 AM
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my87Z my87Z is offline
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Originally Posted by vinniekq2 View Post
actually the correct formula is just over 2.2 X CFM so 227 cfm could make over 500 hp at 100% volumetric efficiency.It is also possible to make more than 100% V.E.
85% V.E. is realistic for most builders of mild street engines.
Actually 227x2.2=499.4

And I'm pretty sure that we are talking about "most builders of mild street engines" here since 99.9% of gearheads don't have multi-million dollar facilities nor the vast expert knowledge it took to afford those multi-million dollar facilities. Even most of your average in home drag engine builders who are producing engines with 1.4-1.7hp/ci are still only managing 85-90%VE

Last edited by my87Z; 01-01-2013 at 09:38 AM.
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