I am new to the turbo scene, and I was wondering how to hook up the vacuum to the aftermarket BOV (GReddy). From what I understand, this is how I would hook it up (tell me if I am wrong). There is a nipple on the side of the compressor housing, that is connected to a nipple on the internal waste gate (stock turbo). From this line, I was going to "tee" it off and run the "tee" to the BOV. When I have the line back to the BOV, I was going to tee it again and run the line to the boost gauge. This is what I gather from the info that I have read. Any help would be greatly appreciated. Thanks.

CHRIS

 

The BOV needs to see vacuum when the throttle plates are closed, so you need to tap off of a vacuum hose. Most people use the nipples on the lower intake manifold near the ACV. Nipples on the front of the throttle body are vacuum as well.

 

Should the boost gauge be in line with the BOV or waste gate?

 

The boost gauge needs to see manifold pressure. So it needs to be connected to a nipple after the throttle bodies.