The Jetta is a compact sedan produced by Volkswagen, a German automobile manufacturer. There are a variety of sub-models within the Jetta family, including the Atlantic, the Bora and the GLI. Volkswagen produces both two-door and four-door Jetta models, as well as a five-door hatchback model. Jetta engines come in a variety of sizes, ranging from 1.6 liters to 2.0 liters; Volkswagen has also introduced a 2.8-liter V-6 option. The 1.8-liter Jetta engines are turbocharged and provide 180 horsepower, vs.160 horsepower for non-turbo Jetta engines.
The Jetta turbo engine system uses a gas compressor to force large quantities of air into the engine, which causes higher-intensity explosions and more power. The gas compressor is powered by a small fan, which sucks exhaust out of the car's exhaust system and pumps it back into the engine. The fan and the gas compressor are located on the same shaft; as the fan sucks exhaust off the engine, it forces it into the gas compressor. The gas compressor compresses the air and feeds it into the engine's cylinder chambers at a higher pressure, thereby delivering a higher quantity of air into each cylinder. The gas compressor contains a release valve that allows excess exhaust to escape, preventing the compressor from becoming too pressurized, which could potentially cause an explosion. The Jetta turbo system is similar to a traditional turbocharger, except that a traditional turbocharger pulls air directly from an engine's crankshaft, as opposed to the exhaust system.
The Jetta turbo engine system is designed to increase acceleration when the car starts at a low speed. When an engine is idling, the turbo fan is rotating slowly since there is not much exhaust coming out of the engine. When the engine revs up, it produces more exhaust, which causes the fan to spin more rapidly. The fan is designed to increase rotation extremely quickly from an idle position, which forces more compressed air into the cylinder chamber and leads to rapid acceleration. The start-up cycle for the Jetta turbo system is known as "spooling up," and it produces a rapid increase in engine power, which helps the Jetta accelerate quickly.
