Thread: Great Article On Crankshafts

If you say the crank doesn't enter the oil unless someone have overfilled the engine, then fine. It doesn't exactly change what I'm saying any though.

Those flat surfaces are still like a sail hanging off the crank and causing drag.. ANY flat surface is bad when you're talking knife-edging.
Joe

I didn't say you did. Do you agree with me then that the one quote in the article is incorrect?


And do you agree with that? It sounds like you disagree, is that correct?

Your monitor must be bad. Those "flat" surfaces you're talking about are not facing the direction of rotation. They are contoured pretty well to reduce drag in my opinion. I'm actually having a hard time imagining how one could significantly improve on that specific crank as far as windage is concerned.

Oh and Miko, like I said, I'm inclined to agree with you. If we want to call shaping the leading edges to reduce windage "knife-edging" then what should we call it when you remove weight to balance the crank with a lathe in such a way that it also reduces windage? I'm trying to think of a good name and I can't.