how to work out power to wheel ratio?

  1. #1
    hi im just wondrering how you work out how much bhp your car is giving to the wheels, as i know you work out the bhp and weight of the vehicle, but what do you multiply it by to get the bhp to wheels??

    cheers
  2. #2
    Best way is to take to a rolling road.

    But I think that transmission loss is about 20-25%
  3. #3
    Has nothing to do with weight. Are you sure you don't mean power to weight ratio?