I noticed the other day while opening my 1st stage of my MBC that it now hisses out of the set screw hole.
I never noticed this before, but then again, I never had it opened as far as I have it now.
Is this normal? Or is this causing to bleed off boost?
I noticed I have it open pretty far and the boost isnt going up as much as I would like it to. Should I just throw some thread sealer on that set screw?

 

i only have their single stage, but as far as i know it should only bleed from the nipple, not the screw. the hissing sound is noticeable. the boost controller doesnt bleed off boost, it bleeds the pressure from the wastegate actuator line, so the more it was leaking the more boost you should make.

 

So it should hiss like its bleeding off or no? It sounds like its coming from the screw, but I could be hearing wrong. When I fully tighten it , it goes away. It gets louder as I loosen it.

 

anyone?

 

sorry i didnt check back up, but mine hisses louder as you turn up the boost (because its bleeding off more air before it gets to the wastegate actuator).