This month, we uncover five things about turbocharging - the act of forcing extra air into the combustion chamber to increase an engine's efficiency and power
June 2014: Five things you didn't know about turbocharging PHOTO: sgCarMart.com

Turbocharging increases air pressure in the intake manifold, which increases the air and fuel mixture entering the combustion chambers to boost power. Here are five things you didn't know about it.

1. The Chevrolet Corvair Monza and the Oldsmobile Jetfire were the first turbocharged production passenger cars in 1962.

2. The air entering a turbocharger compressor can be travelling at a speed close to the speed of sound.

3. If the engine's oil pressure is low, the turbocharger will be the first engine component to fail.

4. The average temperature of the exhaust gas, at the entry point to a turbocharger, is about 1000 degrees Celsius which is hot enough to melt glass.

5. New generation turbocharger rotors rotate at up to 220,000rpm whereas a Boeing 747's engine rotors rotate at about 7,000rpm.