MBC lines - Page 2

**asshanson** · 05-30-2007

I don't think it would matter if it's hooked up to the J-pipe or the compressor housing, should be the same pressure either way. If the boost controller worked before, I'd say it was hooked up right and the problem is elsewhere.

Do you have the SSQV adjustment screw too far in so that it's leaking at higher boost levels? Is the BOV vacuum line still hooked up right?

What do you mean by it started going crazy? Won't hold boost/fades? Or doesn't limit boost and goes past 25 every time?

If it doesn't hold boost, could be a leaking problem with the SSQV. If it doesn't limit boost, the MBC could have broken, coincidentally at the same time as the BOV change.

Pushit2.0 · 05-30-2007

Mr98 your MBC is hooked up wrong(based on pic #20 in this thread). On a ball and spring MBC you need to have your pressure sorce in-line with your ball and spring, so a joe p style (what mr98 has) would have the boost sorce go into the bottom, in line with the ball and spring, the pressure then pusses the ball out of the way and goes out the side and to the waste gate. The Turbo XS the ball and spring are mounted on the side and the bleader is on the top with the waste gate line going out the bottom.

~John

HiImBrian · 05-30-2007

So how is it working?

HiImBrian · 05-30-2007

Is this right?

Pushit2.0 · 05-31-2007

Yes, so the pic in post #20 was wrong then.

~John

**asshanson** · 05-31-2007

Yep, I just looked at mine, that's how it's hooked up. John is correct.

Wow, looks like my first MS paint picture was correct, woot!

HiImBrian · 05-31-2007

Man that blows! Those lines were hard as tits to get on and off. How come everything seems to be fine the way it is? Shouldn't there be a problem lol

crazy_skier · 05-31-2007

It should only be running factory boost right now since it can push the ball out and then its w/g regularly.

HiImBrian · 06-01-2007

Nope, I was running full boost-21psi. I switched it anyways and everything is still the same lol.

mdost03 · 06-01-2007

Pushit is correct. Side port goes to the wastegate and bottom port goes to the pressure source (turbo, intake manifold, etc.)

crazy_skier · 06-02-2007

weird.... maybe your boost controller is possesed????? idk

HiImBrian · 06-02-2007

I think my car is just amazing and doesn't know how to break. Knock on wood!

**asshanson** · 06-02-2007

You get your links on yet?

HiImBrian · 06-02-2007

The end links? No, I've got ss brake lines, new springs, break pads, and those goin on the 23rd

driftn1g · 06-15-2007

i was hooked up threw the bov line with 2-3 psi spike.. now im hooked up to the j-pipe and wastegate and spiking like 1..