In this article, we'll learn how a turbocharger increases the power output of an engine while surviving extreme operating conditions. We'll also learn how Greddy Blow Off Valve , ceramic turbine blades and ball bearings help Greddy Bolt-on Turbo Kit do their job even better. Turbochargers are a type of forced induction system. They compress the air flowing into the engine.
In order to achieve this boost, the turbocharger uses the exhaust flow from the engine to spin a turbine, which in turn spins an air pump. The turbine in the turbocharger spins at speeds of up to 150,000 rotations per minute (rpm) -- that's about 30 times faster than most car engines can go. And since it is hooked up to the exhaust, the temperatures in the turbine are also very high.
Boost refers to the increase in manifold pressure that is generated by the turbocharger in the intake path or specifically intake manifold that exceeds normal atmospheric pressure. This is also the level of boost as shown on a pressure gauge, usually in bar, psi or possibly kPa This is representative of the extra air pressure that is achieved over what would be achieved without the forced induction. Manifold pressure should not be confused with the amount, or "weight" of air that a turbo can flow.
In order to achieve this boost, the turbocharger uses the exhaust flow from the engine to spin a turbine, which in turn spins an air pump. The turbine in the turbocharger spins at speeds of up to 150,000 rotations per minute (rpm) -- that's about 30 times faster than most car engines can go. And since it is hooked up to the exhaust, the temperatures in the turbine are also very high.
Boost refers to the increase in manifold pressure that is generated by the turbocharger in the intake path or specifically intake manifold that exceeds normal atmospheric pressure. This is also the level of boost as shown on a pressure gauge, usually in bar, psi or possibly kPa This is representative of the extra air pressure that is achieved over what would be achieved without the forced induction. Manifold pressure should not be confused with the amount, or "weight" of air that a turbo can flow.
Blow-Off & Bypass Valves have one goal, prevent compressor surge. Compressor surge occurs when the throttle plate of a turbocharged engine closes and the pressurized air is forced back into the turbocharger’s compressor housing causing the turbo to slow down. Compressor surge not only decreases the spool of a turbo but can also damage its center cartridge. Greddy Blow Off Valve and Bypass Valves prevent compressor surge by venting the excess pressure when a throttle plate closes, thus improving spool-up & longevity.
A blow-off-valve is connected by a vacuum hose to the intake manifold after the throttle plate. When the throttle is closed, without pressure develops in the intake manifold after the throttle plate and "sucks" the blowoff valve open. The excess pressure from the turbocharger is vented into the atmosphere or recirculated into the intake upstream of the compressor inlet.
Advantages
More specific power over naturally aspirated engine. This means a turbocharged engine can achieve more power from same engine volume.
Better thermal efficiency over both naturally aspirated and supercharged engine when under full load (i.e. on boost). This is because the excess exhaust heat and pressure, which would normally be wasted, contributes some of the work required to compress the air.
Weight/Packaging. Smaller and lighter than alternative forced induction systems and may be more easily fitted in an engine bay.
Fuel Economy. Although adding a turbocharger itself does not save fuel, it will allow a vehicle to use a smaller engine while achieving power levels of a much larger engine, while attaining near normal fuel economy while off boost/cruising. This is because without boost, only the normal amount of fuel and air are combusted.
Team Forza Motorsport brings you the best in forced induction technology, turbocharged cars, and the latest turbo parts. http://www.teamforzamotorsport.com/
Advantages
More specific power over naturally aspirated engine. This means a turbocharged engine can achieve more power from same engine volume.
Better thermal efficiency over both naturally aspirated and supercharged engine when under full load (i.e. on boost). This is because the excess exhaust heat and pressure, which would normally be wasted, contributes some of the work required to compress the air.
Weight/Packaging. Smaller and lighter than alternative forced induction systems and may be more easily fitted in an engine bay.
Fuel Economy. Although adding a turbocharger itself does not save fuel, it will allow a vehicle to use a smaller engine while achieving power levels of a much larger engine, while attaining near normal fuel economy while off boost/cruising. This is because without boost, only the normal amount of fuel and air are combusted.
Team Forza Motorsport brings you the best in forced induction technology, turbocharged cars, and the latest turbo parts. http://www.teamforzamotorsport.com/
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