How a turbo charger works?

Answer 1

Basically a turbocharger has has two turbines inside it. The rear one is plumbed into the exhaust system and is spun by the exhaust gases rushing past it. This then spins the front turbine which sucks in air, compresses it and forces it into your engine. The turbo will only start to workwhen enough pressure builds up in the exhaust, which is usually in the mid to high RPM range. Once it does it forces more air into the engine making the engine more powerful. Turbos can also be used with an intercooler, which makes the air colder. Cold air is denser and so makes more power.