Engine Performance: System: Turbocharger: Operation: Notes

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 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 compressor speed increases, it compresses incoming air and forces a denser air/fuel mixture into combustion chambers resulting in increased engine power output.