? about that 3.65” crank

gregcon said

"The shorter stroke will have more cycles (suck, squeeze, bang, blow..) per second (because of the shorter distance the piston travels) than a 4.0 arm crank there by creating more available HP."

I'm gonna need you to explain this to me.....if an engine is spinning at a given RPM, let's say 3000RPM, each piston is seeing 1500 combustion events regardless of stroke. The only thing that is really different is piston speed - the longer the stroke, the higher the piston speed. Am I misunderstanding your comment?

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It’s about the RPM of each engine. A shorter stroke will have more power cycles because it has more RPM. More power cycles means lower ET’s IF you can handle the RPM.

Pro Stock is the best example. They can only be 500 inches. They can run any reasonable bore/stroke they want, and they ALL run the biggest bore they can and the stroke is only as long as it needs to be to make 500 inches and that’s it. And then they turn as many RPM as they can...rumor has it at the time before the ignorant Rev limiter 11,500ish or a skosh more was what they RPM. The Pro Stock builders ain’t stupid. RPM is power.