Calculate wheel horsepower from crank horsepower and drivetrain loss.
Drivetrain Data
Manufacturers usually report BHP
Example: 15% for RWD Manual
Results Title
Whp255 HPPower at the wheels
Lost Hp45 HPLost as heat and friction
Lighter wheels and driveshafts can reduce 'unsprung' and rotational mass, improving WHP and responsiveness.
Overview
Wheel horsepower (WHP) is power at the wheels after drivetrain loss. Typically 15-20% less than crank HP. Essential for dyno testing and performance comparisons.
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Pro Tips
Chassis dynos (like Dynojet or Mustang Dyno) measure WHP by accelerating heavy rollers.
Temperature, humidity, and altitude also significantly affect power output.
