turbocharger
What a turbocharger does is a very high level forced induction system that improves the efficiency and increases power of an engine in some form. It is essentially a turbine with a compressor joined on one axis. Turbochargers increase the density of the air, meaning more fuel can be burned, which in turn equals more power. That enables additional power -- without more engine size nor added weight. The Power Spool Delivers Fast Boost and Rapid Acceleration – such as for the 750HP Cells, Engineered Materials Improve Resistance to High Temperatures. ENGINES are employing turbocharging from small passenger-car to big commercial-truck applications for added power and improved fuel economy.