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What do displacement and power mean?

4 Answers
DeJosephine
07/29/25 11:09pm

Displacement refers to the size of the engine cylinder volume. Power, also known as horsepower, refers to the ability of the engine. Introduction to automobile displacement: Displacement, a specialized term in hydraulic transmission, refers to the volume of fluid inhaled or discharged per stroke or cycle. Automobile displacement is an important parameter to measure a car. Some domestic cars do not have the above-mentioned car model at the tail, but their displacement is generally written on the body or the tail. Displacement classification: The classification of Chinese cars is determined by the size of the displacement. The displacement of a mini car is less than or equal to 1.0L; the displacement of an ordinary car is in the range of 1.0-1.6L; the displacement of an intermediate car is in the range of 1.6-2.5L; the displacement of a mid-to-high-end car is in the range of 2.5-4.0L; the displacement of a high-end car is greater than 4.0L.

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VonJuliana
08/16/25 1:19am

Displacement is like the lung capacity of an engine, measured in liters (L), representing the total volume of air and fuel that all cylinders can intake. A car with a larger displacement consumes more fuel, theoretically delivering greater power but also higher fuel consumption. Power is the actual output force of the engine, measured in horsepower (hp) or kilowatts (kW). The higher the value, the more intense the acceleration and the higher the top speed. When driving in the city, I often notice that small-displacement cars, such as 1.5-liter models, are fuel-efficient and practical, making them ideal for areas with frequent traffic lights. High-power cars, like those with 200 hp or more, provide strong acceleration on highways, but you need to balance your budget and fuel consumption. When buying a car, consider your daily needs—don’t just focus on the numbers. Engine tuning and turbo technology can also enable small-displacement engines to deliver high power.

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LeValentina
10/18/25 7:14am

As a car enthusiast, I really enjoy pondering the difference between displacement and power. Displacement refers to the total working volume of an engine, with larger liters indicating greater total space during piston movement, affecting the basic power potential. Power, on the other hand, is the engine's working capability, where higher horsepower directly relates to the vehicle's acceleration speed. Modern engines, such as those with turbocharging, can output 150 horsepower even with a small 1.0L displacement, showcasing excellent efficiency. However, larger displacement naturally aspirated engines like a 3.0L V6 offer stable power and great sound. When driving, cars with higher power provide noticeable acceleration on the racetrack, but for daily use, fuel economy must also be considered, otherwise, the fuel costs can become quite significant.

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DiKatherine
12/01/25 7:49am

Displacement simply refers to engine size, measured in liters. The larger the displacement, the more fuel it consumes and the more power it generates. Power is measured in horsepower, determining how fast a car can go. When I was younger, I drove a 1.6L car with 120 horsepower, which was sufficient for city driving but slow in acceleration. After switching to a 1.8L turbocharged car with 150 horsepower, the pickup became much quicker. However, smaller displacement engines are more fuel-efficient and cost-effective, while higher power comes at a higher cost. For city driving, don't be too greedy—finding the right balance is key.

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