What Do Engine Power, Torque, and Horsepower Mean?

[Shawn]

Here are the detailed explanations of engine power, torque, and horsepower: 1. Power: Power refers to the work done by an object per unit of time. The higher the power, the higher the rotational speed, and the higher the maximum speed of the car. Maximum power is commonly used to describe a car's dynamic performance. 2. Horsepower: Maximum power is usually expressed in horsepower (PS) or kilowatts (kW), with 1 horsepower equal to 0.735 kilowatts. 3. Torque: Torque is an important parameter of engine performance, referring to the average moment output from the crankshaft during engine operation. The greater the torque, the higher the engine output, and the faster the crankshaft speed changes, improving the car's climbing ability, starting speed, and acceleration. Maximum torque generally occurs in the medium to low-speed range of the engine and tends to decrease as the speed increases. The unit of torque is Newton-meters (N·m) or kilogram-meters (Kg·m).