Quote:
Originally Posted by humpday
Can someone explain the conclusion that BMW underrated HP? How is "whp" different from "hp", which I though was 425 based on BMWs numbers?
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WHP (wheel horsepower) takes into account drivetrain losses (~10-15%) over crank hp (which is the number BMW states).
So if BMW says
crank HP is 425 and we are seeing 425
WHP, you can do the math.
edit: and @stressdoc beat me to the punch
PS: Correct me if I'm wrong but is crank HP and BHP interchangeable? I'm fairly certain the mean the same thing.