Car run faster, it must have strong momentum. Currently car power system can be roughly divided into three categories: natural intake system, turbocharger and supercharger systems. In Europe the car, in addition to BMW still insist on using the naturally aspirated engine, all other car companies in order to improve the dynamic performance of the vehicle, have adopted a supercharger, for example using a mechanical supercharger Mercedes, Saab is the turbo ancestor . Japan in recent years in the application of turbocharger technology, can be said to be leaps and bounds, but Honda still insist on using naturally-aspirated engines turbocharger manufacturers.

While most American cars use a naturally aspirated engine, but its OHV OHV engine has considerable differences with the general overhead camshaft design. Natural intake system did not install any form of supercharger, just use the vacuum generated by the piston down to suck air into the mix. Although the natural intake system timing system can get a larger horsepower output via variable valve, but it is limited in power lifting. American cars are the usual OHV OHV engine, its biggest feature is that the engine can achieve greater power output than the same displacement DOHC (double overhead camshaft). In order to effectively increase the engine output power, pressure can be said that the most effective way. Promote the use of exhaust gas turbocharger turbine blades, can greatly enhance the power, even in areas of thin air can provide sufficient air to maintain the normal operation of the engine.

Supercharged car in Europe and must be more common. Supercharger is driven by the rotation of the crankshaft to the turbocharger, the air forced into the cylinders exhaust manifold. Because it is driven by the crankshaft, turbocharger supercharged continuous operation, it does not produce as turbo turbo lag phenomenon. Supercharged although only about 20% of the lifting power output, but also not as violent turbocharged, supercharged but smooth and continuous process, not a turbocharged engine can be compared.

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