How do you convert Wheel Horsepower to Engine Horsepower?

You get the engine horsepower from the manufacturer. They take it off the flywheel. You take wheel horsepower by putting a steel band around the tire. There is a pole attached to the band. The pole...

450 horsepower minus the power lost in the transition from the engine to the wheels.

The formula that works best only applies to the small newer normally aspirated (carbureted) 4 cycle engines. The ratios change slightly worse with altitude and slightly better with fuel injection and...

"Robert Fogt" The amount of horsepower output by an engine depends on more than just the engine size. For example, a tricked out 4.7 liter engine will have more horsepower than an old stock 4.7 liter...

An engines cubic capacity cannot be converted, mathematically, to horsepower without a host of other information..