hi i rebuilt my engine and iam ready to up the boost to 15psi i have tryed 3 diff boost controlers and none of them have worked they do not stop my boost the psi keeps going up and up like there is nothing there.iam lost, i know i deff have this bc hooked up right and iam positive it works becase i tested it with my air compreser ,there is no leakes i even tryed moving my vac sorce off the compressor to the manifold and nothing plesase help me i have put all this time and money into my engine and cant even have fun with it thankx please help

what boost controller and how do you have it hooked up?

I'm willing to bet he hooked up the bc the wrong way.

Originally posted by DSMRoadster
I'm willing to bet he hooked up the bc the wrong way.

well there is a air flow arow on the bc abd i have the araow facing the waste gate like it says so iam not sure

i have a ebay manuel boost controler ,i have it hooked up inbetween the compressor and the waste gate .also when i hook the vac line up with out a bc abd just a solid line it stops perfect at 5psi ,iam lost what else could it be please help me out guys

Some things to consider:

1. They don't come preset.
2. You turn the screw OUT to lower the boost, not IN.

You likely just need to adjust it.