Murphy
01-11-2007, 06:18 PM
http://www.turbo-mopar.com/forums/photopost/data/500/medium/Boost_Control_G-Valve.jpg
Original picture curtsy of Turbos Unleashed
A G-valve is a simple manual boost controller. Inside of the valve is a ball bearing and a spring. When the boost pressure overcomes the strength of the spring, it allows air to pass through the valve and allow the waste gate actuator to see boost, causing it to open. There is a pinhole in the WGA side of the g-valve. If it was not for this pinhole, when the valve closed, air would still be trapped between the valve and the WGA and not allow the waste gate to close. The g-valve is availible from Turbos Unleashed for $43, or you can build your own.
Original picture curtsy of Turbos Unleashed
A G-valve is a simple manual boost controller. Inside of the valve is a ball bearing and a spring. When the boost pressure overcomes the strength of the spring, it allows air to pass through the valve and allow the waste gate actuator to see boost, causing it to open. There is a pinhole in the WGA side of the g-valve. If it was not for this pinhole, when the valve closed, air would still be trapped between the valve and the WGA and not allow the waste gate to close. The g-valve is availible from Turbos Unleashed for $43, or you can build your own.