Turbocharger - Gasoline: Operation: Notes

Air is drawn into the compressor through an air inlet duct. The air is compressed in the compressor housing and then forced into the EFI intake, where it is mixed with the fuel and then injected into the cylinders. As engine load increases and throttle is opened, more air/fuel mixture flows into the combustion chamber. As this mixture is burned, a greater volume of hot exhaust gas enters the exhaust system. The exhaust gas passes through the exhaust intake port on the turbocharger and into the turbine housing where it provides drive to the turbine wheel.

The turbine wheel is connected by a shaft to the compressor wheel. As the compressor speed increases, it compresses the incoming air and forces a denser air/fuel mixture into the combustion chambers resulting in increased engine power output. See Figure .