Turbo works in a very similar way the jet engine.So, the jet engine draws in air from the front, compressors.Hence, the air into a chamber where it burns with fuel. It then blasts the hot air out of the back. The hot air then drives past a turbine.Which in turn drives the air pump at the front of the engine.Therefore, at this stage the heated compressed air is pushed into the car’s engine to make the fuel burn more efficiently. The cars turbo is very much like a small car engine.For that reason, it uses the expelled exhaust gases that are produced in an engine.Hence, to drive a turbine. This spins the compressor.So, which pushes more air/oxygen into the cars cylinders.Thus, allowing more fuel to be burned each second. This is why a turbo can produce more fuel efficient energy per second.