Superchargers and turbochargers are both ways of sending cooled, compressed air into the engine to create more power in the engine. This type of air is called boost, which is usually measured in PSI. Boost gives the engine more power because there are more molecules of air to ignite in the engine, causing the speed of the engine cycle (intake, compression, ignition, exhaust) to increase. For these to properly work, to be effective, and to create real power figures, the engine must be able to withstand the quickly increased speed of the engine.
|A Centrifugal Supercharger|
|A twin-screw supercharger|
Turbochargers and superchargers are great ways of creating more power with fewer cylinders while saving the planet a little bit as well. Hopefully, further innovations will help these "spinny-boys" live on in the future with the impending doom that will come to gas-powered cars from the electric power movement.