Quote:
Originally Posted by jakobnev
drmiller100: Did you just deduct all of that from a priori assumption that there is always a trade off between power and efficiency, and you can never do anything that improves both?
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No, There absolutely are things you can do which improve both low RPM part throttle efficiency and WOT.
More open intake. Decent fuel injection. Higher compression combined with more cam overlap. Long, tuned intake tracts. 4 valve heads.
Go look at Honda Civic engines. Amazingly powerful, amazingly efficient.