When talking about high performance cars, we often hear the terms turbochargers and superchargers. These are forced induction systems that force compressed air at a high pressure into the cylinders of the engine. This means that fuel is burnt in the cylinders with an high amount of pressurized air which gives a higher power output. The typical boost obtained from either a turbocharger or a supercharger is 6-8 psi. Since normal atmospheric pressure is 14.7 psi.