Quote:
Originally Posted by hassmaschine
273 at the crank with the stock tune? I find that pretty tough to swallow despite your trap speed.
what kind of dyno were you on? everyone likes to use really high drivetrain losses too, 225whp is believable sorta but I don't buy into 18-20% drivetrain losses in a modern BMW.
in the end, I guess all that matters is how fast the car actually is.  |
Dynojet, I made six passes and five of the six trap speeds were 92.XX with the fastest being 93.00; so there was less than 1 MPH variation amongst the six runs.
Even though the N51 and the N52 are rated the same at 230 horsepower, I have a suspicion that the N51 with the 3-stage intake manifold (but with lower compression 10.0 /1 compared to 10.7 / 1) makes more power than the N52 in a stock configuration. Also, I have the Dinan ram air intake and the intake scoops, both of which are useless mods on a dyno because there is no significant air flow.