Quote:
Originally Posted by Jockey
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.
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BHP stands for BrakeHorsePower, a misleading term IMO. What it means is power from the engine without any losses to accessories or drivetrain. I.e., right at the crank without anything sucking off power.