Quote Originally Posted by Coldcomfort View Post
So, after much stuffing around I have gone back to e separate dawes valve (DV) and dawes needle valve (DNV) . There was no way that the GFB unit was going to work. The dawes set up works fine its only the extra tubing that the installation involves that i was trying to eliminate. One thing about the GFB unit that concerned me was that when I used my lungs to blow into it and turn the adjustment the boost rise never actually turned off. The air would be diverted and come out the boost ports? Weird. I thought that they were two separate valves. Perhaps not.
Sounds to me you have been sent the wrong valve.

A snip from their website...
Our Manual Boost Controllers are available in two types, one is suited for conventional pneumatic wastegates, and the other is for use with vacuum-actuated VNT (Variable Nozzle Turbine)/VGT (Variable Geometry Turbine) turbos that are commonly used on diesel engines.

I would say the valve you have is to suit a waste gated turbo. Not a VV Turbo.