Hey there I'm pretty knew to the Import scene, and have somehow been convinced to boost my 91 Teggy with a b16 in it. I have been able to do most of the work, everything is damn near done and the car starts but now I have ran into a few problems. I think the problems might tie into each other. I think both problems have to do with my vacuum lines. The first problem is an idle surge which i'm 90% sure that its cause of the vacuum lines. The other problem is that i have one of my cylinders running stupidly hot compared to the other ones. I've seen all of these different ways of people running their vacuum lines and was wondering if someone could give the proper and final answer on how to actually do them. I have a manual boost controller, The way I have them set up right now is Turbo to boost controller, then boost controller to bottom port on the wastegate and then top port on the wastegate is T'd off to my intake manifold. I have my boost gauge T'd off to the line of the map sensor, and had the blowoff valve T'd off to my TB but have since realized that I cant T off to the Throttle body. Also is there anywhere else to T off to? I've heard of the adapter that goes to your Brake booster but didn't want to buy that if it wasn't necessary. I also don't have that nipple on the very back of my intake manifold. I know there has been a million threads on this but I just can't get it right.

 

Pics would help tremendously, but from what I'm reading so far, sounds disastrous!

 

Sounds like a cluster. Purchase a vacuum block and clean that mess up!

 

Yea lmao ain’t going too smoothly, I’ve taken a bunch of pics hopefully they’ll upload. I took all the lines off a bit ago. But yea the way I had them was: Turbo connected to the right side of that boost controller, then the left side of the boost controller to the bottom T of the wastegate, and then top of the waste gate Vented to the intake manifold. Lmao pretty sure it’s wrong looking back at it now. Also I connected my boost gauge to the same line as my map sensor, that a no-no?

 

Pictures havent seemed to upload sadly. But all of the lines are disconnected anyways. I just purchased the vacuum block, but im still wondering exactly how to run these lines. I got an external waste gate and a manual boost controller. Any idea what order to run the lines? Thanks for your time

 

Tee into the brake booster vacuum hose and run your vacuum manifold off of that. From there, run the vacuum/boost source to the rest of your components - wastegate, blowoff valve, boost gauge, etc.

 

Just mounted my vacuum block. Gunna run out and grab the T for my brake booster. Only thing I’m lost on is how my vacuum lines are running together. I’ve switched it up now it goes Turbo to a T which connects the the bottom of the wastegate and left side of manual boost controller, then it goes boost controller to top of wastegate. Just followed a diagram I found but that doesn’t seem right. Can someone please tell me the right and final way

 

Boost controller setup I believe

Wastegate nipple bottom line > boost controller > turbo vacuum line

 

It's not pretty, but gets the point across..