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View Full Version : KA-T boost/vacuum line quick question

[GoaTSLonG]
11-19-2010, 02:04 PM
On my KA-T since my tire wore through the wiring harness including the wires for my profec b spec II the car wont boost past 4psi. Normally I am running 12psi with the profec b. I redid the harness and reconnected the white and green wires for the profec b back together and the device is showing me how much boost/vacuum I am at but no matter how I adjust it, it wont raise the boost.

I'm actually pretty frustrated with the profec b and would rather go with a quality MBC like a hallman or turbosmart. First I'd like to test what psi spring is in my tial wastegate. I don't want to take it apart so my question is how do I run the vacuum lines.

Right now I have a line from the throttle body Tee'd off to the BOV and the nipple on the top of the wastegate. I gave it a run and it boosted to like 15psi before I let off so i'm guessing thats wrong. My turbo is a turbonetics 50 trim and it has a nipple on the front i have that hooked up to the other nipple on the middle of the wastegate. I was going to switch them up but I dont want to overboost it and fuck it up. Its built but I dont want to chance it.

Any help would be appreciated. If you need me to draw a diagram let me know.
mewantkouki
11-19-2010, 02:30 PM
The side port of the wastegate is what regulates boost. :rofl: The top port is what you use to delay the spring opening via a boost controller. I'm assuming you're running an external gate.

http://i35.photobucket.com/albums/d200/ooberplex/externalwastegatesetup.jpg
[GoaTSLonG]
11-19-2010, 03:59 PM
yea its an external gate...so if im not using a boost controller at the moment i just hook up a line from the nipple on my turbo to the side port of the wastegate and leave the top port open to atmosphere?
[GoaTSLonG]
11-19-2010, 04:01 PM
im just sick of the profec b is there an EBC that i can just put how much psi i want and thats it, i dont know how to adjust the gain and the set gain and dont care about the warning or any of that BS.... anything wrong with a nice hallman manual boost controller?
importdude
11-19-2010, 04:03 PM
;3740156']yea its an external gate...so if im not using a boost controller at the moment i just hook up a line from the nipple on my turbo to the side port of the wastegate and leave the top port open to atmosphere?


yes
msglngt
importdude
11-19-2010, 04:04 PM
;3740160']im just sick of the profec b is there an EBC that i can just put how much psi i want and thats it, i dont know how to adjust the gain and the set gain and dont care about the warning or any of that BS.... anything wrong with a nice hallman manual boost controller?

hallman manual is a nice peice

perfect for simple +boost
mewantkouki
11-20-2010, 08:58 PM
Buy my boost controller! It is probably the best one on the market right now. Gizzmo MS-IBC. Greddy is trash. I ran it for a year without any problems it auto adjusts for boost drop off. PM me
[GoaTSLonG]
11-20-2010, 10:59 PM
why are you selling it if its so good?