Different engines have their own characteristics. When selecting a turbocharger, the design of the engine should also be taken into account. In addition, the consideration of exhaust volume is also very necessary.

For example, a large-displacement engine is equipped with a torque type small-capacity turbocharger. When the car is running at low speed, the reaction is very good, and the turbocharger can play a very fast role. But when the capacity is full, the speed has reached the limit in a twinkling of an eye. At this time, the pressure is also difficult to increase. Therefore, the supercharging has reached the limit in the high-speed area with large exhaust energy, The car cannot further increase the intake of the engine. At this time, it is difficult to increase the power as the engine speed increases.

The turbocharger is actually an air compressor, which increases the intake of air by compressing air. It uses the inertia impulse of the exhaust gas discharged by the engine to drive the turbine in the turbine chamber. The turbine drives the coaxial impeller, which compresses the air sent by the air filter pipe and pressurizes it into the cylinder.

When the engine speed increases, the exhaust gas discharge speed and turbine speed also increase synchronously, and the impeller compresses more air into the cylinder. The pressure and density of the air increase, and more fuel can be burned. The output power of the engine can be increased by increasing the fuel quantity and adjusting the engine speed accordingly.