What Do Engine Power, Torque, and Horsepower Mean?

1 Answers
MaggieLee
07/28/25 7:48pm
Here are the specific meanings of engine power, torque, and horsepower: Meaning of Power: Power refers to the amount of work done by an object per unit of time, indicating how fast a car can perform work within a certain period. Theoretically, if the amount of work is constant, the shorter the time, the greater the power value. A car with higher power naturally has better engine performance and stronger explosive force. Meaning of Torque: Torque in a car refers to the rotational force output from the crankshaft of the engine. Under the same power conditions, torque and rotational speed are inversely proportional. Torque reflects a car's load capacity and climbing performance, simply put, its grip strength. Low-speed, high-torque vehicles, such as SUVs and pickup trucks, often have torque amplification systems and typically use body-on-frame construction with rear-wheel or four-wheel drive. Meaning of Horsepower: Horsepower generally refers to metric horsepower. The conversion formula between horsepower and power is 1KW = 1.36 horsepower, and 1 horsepower = 0.735KW. Horsepower is directly related to a car's performance. Under a certain vehicle weight, a car with higher horsepower will theoretically have a shorter 0-100 km/h acceleration time.
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