Full Version: Can someone help me with my mbc?
I have a mbc on my car. I have the bolt adjusted all the way in and I'm still getting way over 20psi at wot. Is there a reason that I can't adjust it in anymore. I am running stock turbo and innercooler also. I t'ed in on the line that runs to the blowoff valve. And ran my out down to the wastegate. Screw is in as far as it will go. Any ideas would help and thanks.
if your looking for more boost I would try a stiffer spring
No, I would like to drop it to about 15-16 psi.
has it worked in the past and just stopped working or has it been like this since install?
I just put this thing on last night. Always above 20 psi at wot. I have to feather the pedal to get my 16 psi.
back the bolt out a little bit, in turns up the boost out turns it down (thats the way mine works)
I'll give that a try and see what happens. Thanks man. Why do they say in the vfaq to start all the way in?
not sure about that never read the vfaq on it
Do you have a link to that vfaq? If that's what it says, someone needs to speak up to the guy who owns it. To reiterate what mitsu90 stated, backing the screw out of the mbc lowers the boost, turning it in increased the boost.
What he ^ said.
Thanks guys for all your help. It was exactly what you said.
thats what were here for 
QUOTE (mitsu90 @ Oct 3 2005, 03:42 PM)
thats what were here for
Thats right! We're all about helping others out with cars, finding answers to questions, keeping each other warm at night.............you know, that sort of thing.
Yeah, what he said....except the keeping warm part
some aftermarket MBC's are oposite of the DIY boost controllers that most of us run. i have never read the article on VFAQ but i know the turboXS MBC is oposite of the DIY MBC.
and as a referance the reason your car was running so much boost was because with the passage closed (screw all the way in) the wastegate actuator wasn't getting any pressure and the actuator never opened the wastegate. i used to have to think through the process when i first got my car so sometimes it helps to remind you which way to turn the screw.
and as a referance the reason your car was running so much boost was because with the passage closed (screw all the way in) the wastegate actuator wasn't getting any pressure and the actuator never opened the wastegate. i used to have to think through the process when i first got my car so sometimes it helps to remind you which way to turn the screw.
QUOTE (jvb6806 @ Oct 3 2005, 11:53 PM)
some aftermarket MBC's are oposite of the DIY boost controllers that most of us run. i have never read the article on VFAQ but i know the turboXS MBC is oposite of the DIY MBC.
and as a referance the reason your car was running so much boost was because with the passage closed (screw all the way in) the wastegate actuator wasn't getting any pressure and the actuator never opened the wastegate. i used to have to think through the process when i first got my car so sometimes it helps to remind you which way to turn the screw.
and as a referance the reason your car was running so much boost was because with the passage closed (screw all the way in) the wastegate actuator wasn't getting any pressure and the actuator never opened the wastegate. i used to have to think through the process when i first got my car so sometimes it helps to remind you which way to turn the screw.
and surely you remember my first 30psi burst as well
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