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bad mbc or bad wastegate???

   
Old Apr 20, 2008, 06:24 PM
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bad mbc or bad wastegate???
i installed my ets 57 trim kit last week.. went to up the boost today as i had my forge mbc all the way down,i hit 16-18psi not sure 100% i tried every click and mbc all the way up and the boost wont move...

i tried disconnecting the vacuum line from the mbc to the wastegate, and same thing 16-18psi....

whats wrong???
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Old Apr 20, 2008, 06:28 PM
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Not hooked up right? or maybe a huge boost leak?
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Old Apr 20, 2008, 06:30 PM
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checkd for boost leaks yesterday, a very tiny one @ 25psi out of my throtle body seals but nothing major, the new seals are going in... no way would it effect my boost more than 1-2 psi at most.... no other major leaks... i confirmed twice the lines are hooked up right
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Old Apr 20, 2008, 06:58 PM
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btw its a tial 38mm wastegate and im using the bottom port for the line, and the top is venting to atmosphere, maybe thats not how it should be??but i didnt notice any boost leak there
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Old Apr 20, 2008, 07:02 PM
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Is screw in the top port still? I know on my wastegate theres just nothing there. Also, did you try a diff mbc?
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Old Apr 20, 2008, 07:26 PM
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i didnt try a mbc, idk how im gunna get one, it goes on the dyno tuesday... ughh i guess ill hve to wait til i get to ics
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Old Apr 21, 2008, 02:29 AM
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???
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Old Apr 21, 2008, 03:13 AM
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Originally Posted by spooch
btw its a tial 38mm wastegate and im using the bottom port for the line, and the top is venting to atmosphere, maybe thats not how it should be??but i didnt notice any boost leak there
no that sounds about right...

Also Post up a example of how your setup looks, it will help us help you. or describe it.

right now sounds like a hose issue....

but ck inside that MBC...i know i had leakage issues with mine...but my issue was boost would not go below 24psi.
Last edited by BiFfMaN; Apr 21, 2008 at 03:15 AM.
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Old Apr 21, 2008, 10:22 AM
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I am 100 percent certain all lines are correct what else I guess I'll try a new mbc 2morow at ics
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Old Apr 21, 2008, 11:58 AM
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take the mbc out completely and run a line from the pressure source to the side port and see what happens.
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Old Apr 21, 2008, 07:45 PM
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turned out to be the damn greddy type s diverter valve? replaced with a stock 9 and no problems lol.. only issue is at idle the car ends up basically stallling now, must have someting to do with the tune
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Old Apr 21, 2008, 09:09 PM
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everythings fixed thanks to mee goodluck tomorrow at the dyno al's gunna make that car a animal
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