im in hampton but i will try to be there

 

It doesnt sound like you did this, but if you unscrew the adjusters on the mbc, the springs can pop out without you even realizing it. This happened to me once, i unscrewed the knob on my xbc all the way and the spring popped out and I didnt even know. Next time i floored my car I almost shit my pants when it spiked to 28 psi. another thing that can happen is the springs get caught up on the threads inside the mbc causing the adjustments to not affect your boost. Slowly loosen the bolt on the mbc being careful not to let the spring pop out and then check that the spring isnt stuck in the mbc. Also check you electrical connections on the dual stage controller, maybe the actuators in it arent working properly. I am pointing all of my fingers at the mbc after all of the tests youve done.

 

its not the electric one, but heres a pic of the one i have

 

here is my settings which i was working fine before

 

whats the right one adjust?

 

the right one adjusts the pressure and the top one supposably helps keep lag down

 

So i'm guseeing the top one is to allow air to escape and the right one tightens the spring.

I would tighten the top one all the way. We don't need any more boost leaks.

Then half way sounds right but loosen it up some more. Loosen it as far as you can and you should hear it rattle. Tighten it up till it doesn't rattle then like half a turn and see what the boost is at.

 

sorry, i thought you had the dual stage one. I say just play with your mbc settings by first loosening both parts a lot and then get a baseline run at low boost, then slowly tighten them until you get the boost pressure that you want

 

The instructions say not to tighten it down any less than 2 turns or cause severe engine damage. but yes when i took off the mbc i blew into the bottom hose and the air came out of the top adjustment.

 

hum

I guess listen to them then. : )
But, I don't think that makes sense. I'd have to see what they are talking about.

If you run your vacuum port straight to the wastegate you are assentially doing the same thing as tightening the top all the way. Unless something in the controller won't let the air flow through it with the top all the way tight. You will have to look into it.