Quote Originally Posted by Bug_racer View Post
After all the figures and formulae I posted up it dissapoints me that you as a tuner still dont understand about correction factors and dynos . A car should be able to be dynoed at any time , any temperature at any altitude and still have readings within 1% of each other . That is what correction factors are for .




You'll need race fuel and a re-tune



You cant compare an M3 engine to the VR6 engine

R32 head does not flow

The piston speed on the R32 is greater than the M3

Bore × stroke

M3 91.0mm (3.58 in) 87.0mm (3.43 in)

R32 85.5 mm × 92.8 mm

Not to mention the head probably flows a lot more , M3 has better exhaust manifold and you paid some $50k more for the m3 !
thanks seb...Iam on 98 anyways...will just a retune make that much difference?