A turbo is ablower,like a GMC, a B&M, or, more similarly, a Paxton. It gives the engine more power by delivering asuperchargeof air (to which you add proportionate extra fuel) on the intake stroke.

Forced induction is the only way to get something like a 2.0L, four-cylinder engine to puff in enough air to behave more like a V-8 twice its size or to get that V-8 to bang out the sort of horsepower ...

A turbocharger is the best power-adder by far. Not only do turbos harness otherwise wasted exhaust energy to drive the compressor, their modular nature lets compressor and turbine housings and wheels ...