A Turbocharger greatly increases engine power by pumping additional compressed air into the Combustion chambers. This allows a greater quantity of fuel to be burned in the cylinders resulting in greater power output. In a Turbocharger the turbine wheels spins as exhaust gas flows out of the engine and drives the turbine blades. The turbine spins the compressor wheel at the opposite end of the turbine shaft, pumping air into the Intake system. The first component in a typical turbocharger system

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How a turbo works full explanation with animation

Difference between Turbocharger and Supercharger ???