Anyone know how to Increase MBC Xs branD? ITs kind of weird any help would be great

 

Aren't those the ones you use an allen wrench to adjust boost? It's blue right?

 

Mine is silver.. But its weird cause when i do the three full turn i start to hear a leakin sound from the mbc. But when i undo it its sealed up again.. Kind of weird.

 

right its a bleeder type boost controller i think, so it will bleed off some boost pressure so the wastegaste doesnt see it.

 

So i should be find then if i hear that bleeding sound?

 

yea

 

Thanks for the help.. I thought it was leakin boost..

 

it is lol, but on purpose

 

One last question.. So as i turn it 3 full turn counter clockwise.. after that one knot up is equal to 1 psi? It doesnt really say from the intallation paper..

 

when you hear the bleeding sound your idle might jump up. mine did. so im assuming you have it hooked up from your vacuum source. i then switched and hooked it up straight to the turbo housing nipple, which wont bleed air at idle. im no professional though

 

Oh, Cant dont mine like yours... Dont have a nipple on my turbo..

 

Hmmm.......is that leaking noise really loud?!?! Like you can hear it clearly at WOT coming from your engine bay?!?!

I have a Dual MBC from XS and i'm having some leaking issues as well. Only mine is seems to be leaking all the boost out or something.

 

yeah u can hear it.. Turned it three full turn, went up 3 knots.. tested on the road, I can feel it pull a lot harder than before.. So i guess its not leakin boost cause it pulled really hard..

From 7 psi I went up to 10..

The only thing i have a problem is when i redline that ****, my wheel start to left n right.. It was little bit hard to controll it.. Didnt have this problem on 7 psi...

 

u need LSD buddy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dc4turbo408 &raquo;</TD></TR><TR><TD CLASS="quote">yeah u can hear it.. Turned it three full turn, went up 3 knots.. tested on the road, I can feel it pull a lot harder than before.. So i guess its not leakin boost cause it pulled really hard..

From 7 psi I went up to 10..

The only thing i have a problem is when i redline that ****, my wheel start to left n right.. It was little bit hard to controll it.. Didnt have this problem on 7 psi... </TD></TR></TABLE>

lol got torque-steer

 

The instructions say each full turn ('fine' adjustment screw, top of blue cylinder) is 1-2 psi - assuming you set it at the base psi of your wastegate first. Basicly on any of their mbc's you increase boost with a counter-clockwise adjustment of any screw.

If you get the high-perf mbc/dual mbc you also have a course adjustment, which is a regular ball/spring. The two black o-rings on the top of the cylinders are in fact bleeder holes, which is how you fine-tune it.