Quick mbc question on my AEB NON DBW

**slopoke** · 10-27-2008 03:56 PM

I have a bleed type mbc and seen some posts about completely disconnecting the N75 except for the the electric connection and other posts saying you have to use them together... Which is correct for my situation?

**maxspeed** · 10-27-2008 03:59 PM

your gonna hit limp mode for overboost regardless

**k0mpresd** · 10-27-2008 04:00 PM

yep. just spend the $$ on a chip.

**slopoke** · 10-27-2008 04:03 PM

i will once i go bt... just help me out real quick please

**k0mpresd** · 10-27-2008 04:10 PM

bleed type runs in conjunction with the n75. goes in the line going from n75>wg actuator.

**djwimbo** · 10-27-2008 04:39 PM

Originally Posted by slopoke

i will once i go bt... just help me out real quick please

I have a bleed valve hooked up with my N75 as well. (98.5 AEB) I also relocated the N75 and MBC up by the airbox for easy access.

Personally I tried using just the bleed valve and couldn't hit >13psi, and I'm chipped for 18psi. (use the search button).

EDIT: I'll save you the effort, here's a link http://www.audizine.com/forum/showthread.php?t=229946

**slopoke** · 10-27-2008 05:56 PM

well i was told this...

Quote:
Originally Posted by slopoke
My mbc only has the screw on top and then 2 nipples... or are you talking the 3rd nipple on the N75?

Originally Posted by mike-2ptzero
Oh. Some have a 3rd nipple and look just like the N75 valve.

In that case you wont have to run a hose to the TIP for the MBC no matter how you install it.

If you install it so you are no longer using the N75 at all, pull it out of the tip and block that hole in the tip. If you leave it in the tip make sure to loop a hose between the 2 other nipples on the n75 so that air doesn't get sucked thru the N75 and into the TIP.

**slopoke** · 10-27-2008 05:57 PM

so it will work better if i run with the n75? im only looking to hit 9-10 psi

lol everybody is telling me something different i'll just try both ways

**andyrew** · 10-27-2008 06:40 PM

Wait wait wait wait... your going to try and hit 13's with no chip? Or is that dream long gone? Because it sounds like your just trying to blow your engine... How lean do you want to be??

**slopoke** · 10-27-2008 06:45 PM

well it was a goal...but the only close program dealer is giac and they do not offer a bt tune.. so i figure why spend $400-500 on a chip to just go BT soon after anyways...

**k0mpresd** · 10-27-2008 06:50 PM

Originally Posted by slopoke

so it will work better if i run with the n75? im only looking to hit 9-10 psi

lol everybody is telling me something different i'll just try both ways

Originally Posted by k0mpresd

bleed type runs in conjunction with the n75. goes in the line going from n75>wg actuator.

this will be the smoothest way to go. a true mbc set up (ball/spring type) on a k03 is very on/off boost. at least inline with the n75 you get factory smooth boost curve coming on. just a higher peak because of the bleed off.

**djwimbo** · 10-27-2008 09:21 PM

Originally Posted by slopoke

the only close program dealer is giac and they do not offer a bt tune

Yes, they do. Just not for any AEB cars. '01.5's they do.

My work is a retailer for GIAC, so I can't exactly say F- them, but Uni is the route I went. I would have gone that route even if I worked for the same company now as I did then.

FWIW, the only reason I run a MBC is b/c it helps me hold the boost longer and more consistently than with just the N75.