Bonneville America Forums Forums Technical Forums Performance Mods HP vs Torque

Both are important since they are different sides of the same coin.
But when doing a dynamic (inertia) dyno run you are measuring Power "the rate at which work is performed or energy is converted" vs rpm at the rear wheel RWHP. The Engine torque is then calculated by the formula Torque = HP X 5252/RPM and expressed as torque or load at engine crankshaft.
So the actual rear wheel torque depend on the engine RPM and all the different gearing ratios in the drive system.

Our bikes 50 - 55 Ft lbs at crankshaft will be something like 600 - 700 ft lbs at rear wheel at 7400 rpm in 1 gear.

Hasse