MENU
Can 'Diesel' Really Be Part of Our Vocabulary? "2007 – The Year Of The Diesel Hot Hatch" Looking forward to […]
Blow off valves, dump valves and screamer pipes
Blow off valves and dump valves.
When the throttle is closed (when you lift off the accelerator) in a turbo driven engine there is a build up of pressure as forced air is still coming from the turbo. Lifting off the throttle is a lot like putting a plug in the sink – the flow through is stopped and water would just build up and overflow the sink.
The basic reason for forced induction (turbo or supercharger) is not to increase compression or the maximum pressure in an engine cylinder, it is to increase volumetric efficiency (the efficiency of the engine at drawing in air) although forced induction is the most effective method of upping compression.
In computer games we just tick a box, and within seconds our car is fully turbocharged and running much faster. In the real world things are very different.
Flywheel lightening & performance gains from lighter flywheels
Flywheel lightening and its impact on engine performance. "No Fly(wheels) on us." Lightening the flywheel – the flywheel works […]
