Can someone explain how the adjustable turbo boost elbow works?
From what I figured out, it fools the waistgate diaphram into opening @ higher psi. All the way out must be similar to the stock waistgate release pressure and all the way in, must act like a non-waistgated turbo. Am I correct?
But what I really want to know is, is it truely adjustable? Meaning, does every one turn of the screw change the boost pressure slightly, or does it only work all the way in or all the way out with no other adjustments?
The reason I'd like to know, is for fine-tuning the power of my 12v!
Thank you!

 

The boost elbow is a fairly crude approach to a regulator. To be plain, yes its totally adjustable and i have played with any and all pressure setpoints from stock to 50 psi.

The way it works... The elbow has the pinch point or regulating point with the hex set screw. Now between the pinch point and the wastegate actuator, there is a small bleed orifice. Between regulating the flow of boost signal to the wastegate and the flow out of the bleed orifice, the wastegate pot only ever sees the opening pressures required of 20-25 psi. The boost signal pressure can be as high as you want to set it by adjusting the pinch point. Closing it off will not allow the pressure in the wastegate to ever open, opening it all the way would be close to stock.

I hope it makes sense..