How big is the displacement of a naturally aspirated car? How is the performance of a large displacement car?

Many car enthusiasts want to know how big a naturally aspirated car's displacement is considered large. Some say it's best to buy a large-displacement car, which has better performance. Some say it's best to buy a small-displacement car. How should you choose between these two types of cars? Let's take a look together!

How big is the displacement of a naturally aspirated car?

Conventional "large displacement" can be comparable to 1.5T engine

The average power reserves of the top three mass-produced 1.5T engines are as follows.

Maximum power 125kw (about 170 horsepower)

Maximum torque 270N·m

The supercharger can maintain peak speed between 1500 and 4000 rpm

This power reserve can drive a 1.5-ton compact SUV and a standard mid-size sedan to reach 0-100 km/h in 8 seconds, which is more than enough for ordinary commuter cars. In other words, a 1.5T engine of this standard is already a "golden displacement", and a naturally aspirated engine must at least meet the same standard to achieve excellent quality.

How is the performance of large displacement cars?

The maximum speed limit on the road is only 120km/h. Is this engine with poor initial acceleration and performance experience only at high speed considered a performance machine or a "large displacement" in the conventional sense? It can be seen that the actual performance level of the so-called "large displacement car" of 2.5L is only close to the high-level 1.5T, so the "personality" of the naturally aspirated engine has long collapsed. And this is an evaluation given without discussing fuel consumption and NVH. The difference in displacement of 2.5L and 1.5T is 1.0 liters, so you can imagine how big the difference in fuel consumption is. 1.5T can get the same horsepower at low speed as 2.5L at medium and high speed. Wouldn't the vibration and noise at low speed be smaller?

Is it true that engines are taxed based on displacement?

The consumption tax in the Chinese automobile market is divided by engine displacement, and China imposes heavy taxes on cars with a displacement of more than 3 liters: 3% for cars with a displacement of 1.0 liters to 1.5 liters, 5% for cars with a displacement of 1.5 liters to 2.0 liters, 25% for passenger cars with a displacement of 3.0 liters to 4.0 liters, and 40% for passenger cars with a displacement of more than 4.0 liters. It can be seen that in the Chinese market, cars with a displacement of more than 3 liters can be regarded as large-displacement cars, especially since domestic air quality issues are reported every year. Using taxes to guide consumers to buy small-displacement cars is a means to promote energy conservation and emission reduction in the automobile market.

Related News

The classification of Chinese cars is based on the size of their displacement.

1. The displacement of a mini car is less than or equal to 1.0L;

2. The displacement of ordinary cars is in the range of 1.0-1.6L;

3. The displacement of mid-size cars is in the range of 1.6-2.5L;

4. The displacement of mid- to high-end sedans is in the range of 2.5-4.0L;

5. The displacement of high-end cars is greater than 4.0L.