MBC wont increase boost

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MBC wont increase boost

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Mitsubishi >> Tech Help and Information >> Nitrous, Super Chargers, & Turbos >> MBC wont increase boost

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MBC wont increase boost - 7/21/2006 11:34:15 AM

99clipsgst

Posts: 347
Joined: 12/4/2004
Status: offline

I got a Joe P MBC and followed the diretions that came along w/ it. At first the boost was at 10 PSI so I adjusted the screw and it went to 12 psi or so. which is what I was at w/ out a boost controller. then I adjusted the controller 3 more times and the boost wont go up any more. am I forgetiing something or do I need to adjust my BOV.

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Boost. the only replacement for displacement.

God created turbo lag to give V-8's a chance.

Post #: 1

RE: MBC wont increase boost - 7/21/2006 6:14:35 PM

Blue03Evo

Posts: 99
Joined: 11/28/2005
Status: offline

Your BOV may be leaking so i would try that or you may need a stronger spring in the MBC.

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Post #: 2

RE: MBC wont increase boost - 7/21/2006 10:39:56 PM

slow420a

Posts: 2316
Joined: 8/8/2005
Status: offline

Joe p mbc's are worry free, their the cheapest most reliable mbc on the market. If you have a stock bov, which I am guessing you dont becuase you said that you may have to adjust it, the stocker will only hold 12psi, everyhting else leaks out. Did you happen to remove you bcs? 2g's have a little restrictor in the vac line that goes from the compressor housing to the WGA which will keep it from going over 12psi. Check out vfaq.com for pics of mbc installs.

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Post #: 3

RE: MBC wont increase boost - 7/22/2006 8:52:47 AM

99clipsgst

Posts: 347
Joined: 12/4/2004
Status: offline

I have a greddy type s bov. And yes the BCS restrictor had been removed before i bought the car. when you put the mbc on can't you remove the bsc. I havent but its only connected on one side and the is to the intake. do yoy think that if I adjusted the bov to harder it might fix the problem?

_____________________________

Boost. the only replacement for displacement.

God created turbo lag to give V-8's a chance.

(in reply to slow420a)

Post #: 4

RE: MBC wont increase boost - 7/22/2006 2:02:55 PM

importorigins

Posts: 117
Joined: 7/3/2006
Status: offline

Would that also work for the hks mbc? The instructions that came with mine were a bit confusing. lol

quote:

ORIGINAL: slow420a

Joe p mbc's are worry free, their the cheapest most reliable mbc on the market. If you have a stock bov, which I am guessing you dont becuase you said that you may have to adjust it, the stocker will only hold 12psi, everyhting else leaks out. Did you happen to remove you bcs? 2g's have a little restrictor in the vac line that goes from the compressor housing to the WGA which will keep it from going over 12psi. Check out vfaq.com for pics of mbc installs.

(in reply to slow420a)

Post #: 5

RE: MBC wont increase boost - 7/22/2006 7:03:18 PM

slow420a

Posts: 2316
Joined: 8/8/2005
Status: offline

hit up vfaq.com

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Post #: 6

RE: MBC wont increase boost - 7/23/2006 12:48:32 PM

99clipsgst

Posts: 347
Joined: 12/4/2004
Status: offline

I went there and for the hallman mbc you hookit up to the bov. Is that right? in the directions it says to run it from a pressure source and the wastegate. so I have one end connected to the wastegate and the other to the nipple on the turbo housing. Any other pics of other setups would help

_____________________________

Boost. the only replacement for displacement.

God created turbo lag to give V-8's a chance.

(in reply to slow420a)

Post #: 7

RE: MBC wont increase boost - 7/24/2006 9:22:37 AM

TheEngineer

Posts: 10721
Joined: 1/25/2006
Status: online

quote:

ORIGINAL: 99clipsgst

I went there and for the hallman mbc you hookit up to the bov. Is that right? in the directions it says to run it from a pressure source and the wastegate. so I have one end connected to the wastegate and the other to the nipple on the turbo housing. Any other pics of other setups would help

thats how it should be hooked up. I think slow is right on this one. I dont think it has to do with your MBC. Something else is leaking preventing it. I would try tighting the spring in it. If that doesnt do it then check the intercooler pipes for a leak.

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