Turbochargers, many people have heard of them, but not many people can explain them. There are many different sizes and shapes of turbo-chargers, but there purpose will remain the same - to bring more air into the engine. The best way to think of a turbo is like a big fan, but instead of blowing air it consumes air and squeezes it into the engine. A turbocharger is also much different from a fan in that it is made almost entirely of metal and spins usually between 100,000 and 200,000 RPM