
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.

Safety Mods "Play it safe." When one starts modifying a car, little thought is usually given to the safety of the […]
Building a 10 second car
We look at what it takes to build a 10 second car and examine the power and weight requirements to reach the sub 11 second goal on the drag strip.
Follow our tips and you can make a 10 second car quite cheaply and within your budget with some power mods and serious weight reduction.
Best cold air intake induction kits and performance impact
Cold air intakes and induction kits and the effect on performance. "Suck it and see – induction kits." Improving the […]