a. miss stephanie#92;b.boo radleyc.dilld.jem
Flywheel HP is without any parasitic drains. It's the true HP rating of the motor. Wheel HP is what is measured at the wheels, and the difference between the two is the parasitic loss through gearing, etc.
Horsepower at the wheels equals flywheel horsepower minus losses thru the vehicle drive trane, (transmission, differential, bearings: friction and inertial losses).
one is measured at the engine, the other is where the rubber meets the road. Your transmission, torque converter ,driveline and differential all are hosts of potential power losses.In addition, when comparing dyno horsepower to wheel horsepower, you also lose power through your alternator,a/c ,power steering and non-electric fans and a more restrictive exhaust and emission package.