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 | Illustrated: Chromed Turbo Charger and Injectors |
Turbo Charging: Turbo charging is one of the less expensive ways of helping an engine generate more horsepower. A turbocharger should not be confused with a Supercharger / Blower.
Superchargers are usually belt driven and actually USE horsepower to generate boost pressure, a turbo does not take horsepower away from the engine to build boost pressure. Exhaust gas is forced through a turbine housing and drives a turbine wheel on it's way out the exhaust. The turbine wheel is attached to a shaft that rides on floating bearings and drives a compressor wheel.
| The compressor wheel pulls air through the air filtration system and channels it through a compressor housing, where it is compressed and directed into the engine intake manifold. The amount of "BOOST" generated by a turbo is determined by its design, which is usually determined by the engine requirements.
Air entering the engine first passes through an exhaust driven compressor. Compressed air results in a larger quantity of air being forced into the engine, creating more power.
The energy used to drive the turbo compressor is extracted from waste exhaust gasses. As exhaust gasses leave the engine they are directed through a wheel placed in the exhaust flow. The gasses drive the turbine wheel around, which is directly connected via a shaft, to the compressor wheel.
Increased exhaust gas drives the turbine wheel faster, this provides the engine more air, producing more power. A limit is met once a pre-determined boost pressure is achieved. At this point the exhaust gas is redirected away from the turbine wheel, thus slowing it down and limiting the maximum boost pressure. This redirection valve is known as the wastegate.
This extraction of energy, from exhaust gas, to improve engine efficiency is the device known as the turbocharger.
Turbochargers are usually seen as power enhancements on performance cars, but today, turbochargers are becoming more regularly used to provide greater torque on small capacity engines. The advantages of using a turbo engine include improved fuel efficiency and reduced exhaust emissions.
Horsepower is generated by the optimum burn of the fuel which is directly related to the fuel/air mixture. If extra air is added the fuel can be increased to bring the horsepower up. A factory turbo charged engine is designed to handle the extra fuel allowed with the added air. When installing a turbo to a non-turboed (naturally aspirated) engine, caution should be taken to assure that the system has been engineered so as not to cause engine damage. | Turbo Maintenance
A turbo can turn in excess of 100,000 RPM and since most turbos rely totally on engine oil for cooling it is necessary to keep the engine oil clean. Anytime the turbo oil lines have been drained of oil it is critical that there be oil to the turbo before starting the engine. This prevents turbo damage from lack of lubrication. Lack of lubrication damage can also occur if the oil supply to the turbo is shut off before the turbo has had time to slow down. It is normally recommended that an engine be allowed to for a few minutes before shutting off the engine. This lets the turbo slow down as well as cool before shutting off the oil supply. | | :: Recommended Reading / Videos :: | | | |
| :: Recommended material containing aditional info about Turbo Charging :: |
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:: Copyright 2003 - 2012 CarEcstasy.com / All rights reserved :: |
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