Ok lets say you have about 170 hp and 116 ft lbs to the crank, what do you think the wheels have? Is there some way to figure out how approximatley how much wheel power you have, besides a dyno? How much power is lost before it hits the wheels?

 

Depends on the drivetrain, but FF cars usually only lose like 10-15%. So if you are 170 at the crank in a FF then you are probably putting 150 to the ground.