We often see the following engine displacements: 0.81.1.31.41.61.71.82.02.42.52.83.
Generally speaking, the single cylinder capacity of an automobile engine is about 0.5L In other words, 1.6-2.0 engine has four cylinders, 3.0 engine has six cylinders, 4.0 engine has eight cylinders, 5.0 engine has 10 cylinder, and 6.0 engine has 12 cylinder (but not necessarily).
Theoretically, the greater the engine displacement, the greater the power and torque. But not necessarily, the key is to look at the adjustment of the engine by the manufacturer. For example, some high-performance sports cars need high-power engines, which means they can run fast, so the car factory will adjust the engine to high power and the torque will be gone. If it is an off-road vehicle, it doesn't need to run fast, but it needs a lot of force (torque) to tow the car, so the car factory will adjust the engine to a large torque, but it will lose some power. For example, an engine with a displacement of 4.0L is used in a high-performance sports car with a power of 350KW and a torque of 300NM. However, if it is used in an off-road vehicle, it may be adjusted to a success rate of 280KW and the torque will become 450NM.
The displacement of a car is related to its acceleration performance and limit speed. It is also related to the fuel consumption of the car.
Generally speaking, the greater the displacement of the same car, the greater the fuel consumption. But it is not necessarily proportional. The key is to carry it reasonably. For example, if a car is equipped with a 2.0 engine, then if you are equipped with a 1.6 engine, it will consume more fuel than 2.0, and if you are equipped with a 3.0 engine, it will consume more fuel than 2.0.
The cylinder arrangement of the engine may be as follows: in-line, horizontally opposed, V-shaped, W-shaped, etc.
In-line type is a simple structure with low cost and small volume, which is generally used in ordinary cars. V6 is more complicated, and the structure above V8 is very complicated and the cost is very high, so it is generally used in advanced cars. Generally speaking, W 12 can be regarded as the combination of two V6s, and its structure is also very complicated! As for the horizontal opposition, only Subaru and Porsche have it. There is also a more complicated rotary engine. At present, only Mazda is developing and producing in the world, and only Mazda RX-8 has a rotary engine with a displacement of 1.3, while the power and torque reach the level of ordinary 3.0 engines, and the acceleration time of 0- 100KM/H is about 6 seconds!