Turbochargers and superchargers are part of the two and are both classified as

superchargers. Supercharger has the function of supplying pressurized air to the

engine to improve the output power of the engine. Turbocharger and mechanical

supercharger are to provide power for the engine, but because of the different

performance, their advantages and disadvantages are different, so according to

the use of appropriate use.

A supercharger has a part called a compressor, which compresses air. The

compressor works by rotating. Turbocharger and mechanical turbocharger

compressor rotation mechanism are different, distinguishing the advantages and

disadvantages of both.

Turbochargers use the flow rate of gas (exhaust gas) from the engine as energy.

The exhaust gas is received by windmill-like parts called turbines, and the rotational

energy obtained by rotating the turbine is transmitted to the compressor. As the waste

gas that is no longer needed becomes energy, it can power the engine efficiently.

However, when the engine speed is low, the flow of exhaust gas is insufficient, and the

turbocharger can not play a great role as the power of the turbocharger. With the

increase of number of revolutions and the increase of flow velocity, momentum gradually

play, but for the driver, even if the throttle also has no power at the beginning, then

dynamic emerging, it feels like time lag is known as turbo lag in the latest car. This kind

of turbo lag has been suppressed, even under the low speed can exert its power. Older

turbocharged cars often experience this kind of turbo lag, but many fans like to keep it

as a taste.

The supercharger uses the rotational force of the crankshaft inside the engine.

The rotation of the crankshaft is transmitted to the compressor by belts, etc. Since

the crankshaft revolution is the engine revolution, the supercharger is pressurized

as long as the engine is running. Therefore, it can exert its power even at low revs,

and because it is related to the engine speed, there is no turbo lag like the

turbocharger mentioned above.

On the other hand, because it uses the rotational energy of the crankshaft, it is less

efficient than turbochargers that use exhaust energy that is no longer needed. In

addition, many models use turbochargers instead of mechanical superchargers

because of the noise and high cost of running.