Quote:
Originally Posted by secono330ci
Yes in theory it is better balanced, but still it can become a problem. Just look at the s52 and m54 engines.
Edit: not saying it will become a problem at stock rpm limits. I'm talking more in terms of raising the redline for track engines.
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Since you brought up the S52, I will use mine for a positive example of how I have seen BMWs take more power than they are designed for.
I gave my car 13psi on the stock/original head gasket for 10k miles on a BAD tune, AA of course. The car held the abuse, even the stock clutch hadn't slipped and the original brakes still in place at 80k miles.
I only put in a cutring headgasket for insurance as I threw in cams and planned for 16psi with a proper tune and more exhaust work.
So it's not apples to apples, but it gives me faith in the robustness of the major components on an M car.