[scollins]

Originally Posted by Ninji

Lol. Further proof of the n00bery in here is the way people talk about boost pressure as an absolute measure of hp. FYI, psi means nothing; what matters is the mass air flow rate, which you can painstakingly determine from the turbo compressor maps. And since cfm is the determining factor, you can easily have a car running 8psi that makes much more power than another car at 16psi.

And as far as cylinder walk - perhaps a more important variable would be the engine's r/s ratio. If if has short rods, there's going to be much greater sidewall loading which will distort the sleeves and potentially pop the head gasket.

The N54 stroke is 84mm. I wish I knew the rod length so I could calculate the r/s.

Does this help at all? Found it on another forum...