Horsepower Equations Calculator

Automobile Car Truck Design Formulas

Problem:

Solve for engine horsepower using the ET method.

This method uses the elapsed time needed to complete a quarter mile run. It is used to give an estimate of vehicle(car, truck, motorcycle) engine or motor horsepower. Weight should include the mass of the vehicle, driver and passenger.

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	Rotating horsepower
	Torque
	Speed - revolutions per minute (rpm)

	Estimate of engine horsepower after a quarter mile run using the trap speed method.
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	Calculate engine horsepower after a quarter mile run using the ET method.
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