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?
|
OK, lots of folks way more knowlegeable than me on this, but it's simple:
Wheel Horse Power is what you get measured from a dyno that is actually powered by the driving wheels of the car.
Horse Power (and BHP) are measures of power taken directly from the engine (flywheel). WHP is expected to be about 10-12% less than HP because of inherent losses in the drivetrain.
So... 425 WHP translates to about 470 HP.
