SUPERCHARGING : Similar to turbocharging, but the supercharger is driven by the engine rather than the exhaust gases. There is no delay in response with the supercharger, it responds as soon as the driver presses down on the accelerator, but being driven by the engine it does use up some of the engine's power.

TURBOCHARGING : The engine's incoming charge of air and fuel is pressurised by an exhaust driven turbine for more efficient filling of the cylinder which produces greater power. The turbocharger is fitted in the exhaust system and is driven by the exhaust gases as they leave the engine.