Cossie1
New Member
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hi el is a dawes device the same as a bleed valve if so ill buy a bleed valve for when we goto this and ill mount it in the car
ifectively in car boost!
No a dawes is not the same as a bleed valve.
By it's name, a bleed valve bleeds off (leaks) boost pressure to force the turbo into working harder to produce more boost (a little exagerated but basicly forcing the turbo to create 2bar of boost to maintain 1.4 bar).
A dawes device uses a ball bearing and a spring, when you wind the dawes device in, it puts more load on the spring, and when it hits the preset load it will move the ball bearing off it's seat and that allows the actuator to open as it should and create the set level of boost.