Can someone take some pics of their engine bay and show exactly how their vacuum lines are routed from the manifold to the BOV and WG?

So I did more reading and just figured this out...

1) The wastegate needs to see boost pressure, not vacuum. This boost (positive pressure) can be tapped from anywhere after the turbo compressor up to the throttle body intake. A quick tap (http://www.aptuning.net/FTG_QuickTap...ap-comphsg.htm) can be used bye drilling into a coupler and installing this nipple anywhere in the intercooler piping for a quick boost connection.

2) The blow-off valve is held shut by a spring and will open by vacuum (negative pressure). The negative pressure occurs when a driver lets off the gas pedal and the throttle body is closed. The pressure is created within the intake manifold past the throttle body. This vacuum line needs to be tapped for the BOV. The combination of boost pressure from the intercooler piping pressing against the BOV spring, and the vacuum pressure on the other side of the spring "sucks" it open.

I think I am correct. Anyone want to verify?

 

Yeah you are correct. Several turbo manufacturers have a threaded hole on the compressor cover that is used to connect a vacuum line to a boost controller and then you connect the boost controller to the wastegate or you can use that fitting to connect straight to the wastegate if you are regulating boost off of the wastegate spring. For the bov just use one of the vacuum ports on the intake manifold (do not t off of the fuel pressure regulator) I would recommend t'ing off of the egr vacuum line. If you are like me and removed the egr then you can use that port without t'ing off.

 

I don't T off of anything. Looks tacky and can cause you issues down the road like tracking down a vacuum/boost leak. I come directly off my manifold for everything, I don't ever pull a vac source off the compressor housing, only b/c I like to know what is exactly going into my motor, plus you may have a few lbs of pressure drop from your i/c piping and cooler. So 10#'s at the turbo, can be 8#'s at the motor.

I use a vacuum manifold to clean it all up, and keep everything in once place for ease of access and troubleshooting if need be.

So to recap, your BOV comes directly off the manifold or vac manifold, and your wastegate setup depending on boost controller config will vary, look at what the manufacturer recommends.

 

I don't have a boost controller. I understand what a boost controller does, but I haven't invested in one.