Thread: Dyno Results
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      04-24-2008, 12:12 PM   #11
lucid
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Drives: E30 M3; Expedition
Join Date: Apr 2007
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Quote:
Originally Posted by ChitownM3 View Post
Guys, the HP is lower than other dynoes because whoever dynoed the car let off before 8000 rpm. Looks like they let off around 7750 rpm. Doesn't this car make its peak HP at 8300 rpm?!?!?
Look at the charts from RRI. They have max hp at the wheels @7821 rpm. The max power at the crank could be achieved at a higher rpm, but the transmission losses go up with engine speed, so if the crank gains are very small between 7821 and 8300, the tranmission losses could trump them, and you see what these charts tell us at the wheels.
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