Quote:
Originally Posted by wytstang
Horse power sells cars, torque wins races. Torque is what moves your vehicle not horse power. Horse power is basically a by-product of torque
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Torque is angular force. Power is rate of energy output. KE=1/2mv^2, and dKE/dt=POWER. Power is simply a function of torque*rpm. The reason power is important is because power defines the torque that can be applied at the wheel at a given speed. Power allows torque to be multiplied through gearing. They're both ways of describing engine output.