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MBC lines
Latley I have not been able to hit full boost. I should be at 21psi but I'm gettings stopped at 16-17psi. I am going to do a boost leak test tonight when I can borrow my buddies air compressor, but I thought I'd check all my lines first. Is there anyway I'm running off my 1 bar wg spring? Are these lines ran correctly or is there a different way to run them all? Thanks
http://i9.photobucket.com/albums/a98...0/mbclines.jpg |
Re: MBC lines
Your routing looks correct.
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Is there any other way of routing it? I thought a friend of mine told me a while ago that I could just connect a few lines together or run my mbc to my turbo or something.
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My turbo has a place to hook up the vacuum line for the pressure source. I have like 4" of hose on either side of my boost controller, it sits only a few inches away from the turbo and wastegate.
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Here is what mine looks like. I believe the benefits are less boost spike, maybe some other things too that I can't remember.
Then for the BOV just run a line straight to the intake mani. |
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Clean your mbc out, running off the compressor housing will allow the lowest boost possible. Most people run the line off the intake manifold like you have it now.
~John |
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I used to run one pressure source for both the BOV and wastgate but was having some issues with my MBC also holding boost. I ran them independently and that fixed the problems.
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Fixed it! I ran the bov to the intake mani and the mbc to the wg and to the turbo. Thanks slowboy! I actually had more than enough line the way it was so I just switched em and now she bangs nicely.
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Glad to hear it works now.
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Yea thats gotta be one of the quickest threads ever. Post a thread with a question and have you answer in 5 mins and car fixed in 10. haha shit we never even hit page two.
And btw your pic was backwards. The bottom of the mbc goes to the wg, just if you wanted to know for sure. Thanks again |
Re: MBC lines
EDIT: I am dumb.
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GOt a feeling that ass-hanson knew what was going on with his car before he started typing.
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I don't mean to steal your thread but recently after a new bov install, I've been getting some problems with my mbc also and I've been reading around on different more accurate ways to hook it up. Does the bottom of the mbc always go to the wastegate? The way I have mine hooked up right now is the bottom one goes to a boost source nipple off a pipe from my j-pipe. Then the other one that's located on the side of the mbc to the wastegate. Again, sorry, I don't mean to steal your thread. |
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But the buscher one I have on my car right now is normal, with the side going to the wastegate. |
Re: MBC lines
Okay, mine is just some home made model. I bought it from someone from this forum a long time ago. Forgot his username but he was a more older guy that lives in Coon Rapids I think. I guess you get what you pay for.
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Again, slowbody is right on the money. What kind of mbc do you have? I have a joe p and the bottom goes to the wg and the top/side to the turbo. I am not familiar with hooking up a mbc to the j-pipe though. Normally they are hooked up like the top pic or like previously stated.
And don't worry about stealing my thread. I'm done with it haha. You can have it now lol. |
Re: MBC lines
Looks like we replied at the same time but yes, mine is a home made model. Looks like something you can buy from Menards and put it together. It worked great before when I had it with my T25, and now with my E3 16g. It just suddenly went crazy after changing the 1g bov to a hks ssqv bov.
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Re: MBC lines
This is where my lines are ran now. Idk if that will help or not but I thought I'd post it up.
http://i9.photobucket.com/albums/a98...mbclines-1.jpg |
Re: MBC lines
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. |
Re: MBC lines
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 |
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So how is it working?
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Yes, so the pic in post #20 was wrong then.
~John |
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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! |
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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
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It should only be running factory boost right now since it can push the ball out and then its w/g regularly.
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Nope, I was running full boost-21psi. I switched it anyways and everything is still the same lol.
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Pushit is correct. Side port goes to the wastegate and bottom port goes to the pressure source (turbo, intake manifold, etc.)
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weird.... maybe your boost controller is possesed????? idk
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I think my car is just amazing and doesn't know how to break. Knock on wood!
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You get your links on yet?
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The end links? No, I've got ss brake lines, new springs, break pads, and those goin on the 23rd
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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..
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