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Im out of ideas (boost issues)

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Old 11-09-2005, 12:35 PM
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2gr84u
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Default Im out of ideas (boost issues)

Alright im out of ideas here!!
I have done everything i can think of to get my turbo to boost to 10 psi and I just cant get it to happen.
Ive done LOTS of leak testing, and everything is pretty tight. There is a slight leak coming from two couplers due to busted worm gear clamps. Thats it as far as i have been able to tell. Ive got the wastegate completly sealed im 99% sure of that. Ive tested the wastegate with the vacuume sorce removed and it didnt change anything. Im out of ideas, SO if anyone has any suggestions please throw them my way. Im thinking about taking this to a near by performance shop and letting them diagnose/fix it.
Old 11-09-2005, 01:10 PM
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2gr84u
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forgot to say its a d16 z6 with a 14b turbo, HF manifold, it does a very SLOW 5 psi right now, ive got to be mashing the gas and it wont reach 5 till 4th gear. Its on a 94 Del Sol Si
Old 11-09-2005, 03:01 PM
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bambbrose
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BOV sealed all the way?
Old 11-09-2005, 03:43 PM
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onegreedy
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if i had to guess i would say something is restricting your exhaust , is your maniford big enough? or is turbo to big for the d series engine?

thats all i can think of
Old 11-09-2005, 04:22 PM
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delsol161
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different wastegate spring perhaps?
Old 11-09-2005, 05:29 PM
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2gr84u
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Originally Posted by delsol161
different wastegate spring perhaps?
its internaly gated, and its sealed, dont think you can adjust the springs
Old 11-09-2005, 07:46 PM
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Running925
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Originally Posted by 2gr84u
its internaly gated, and its sealed, dont think you can adjust the springs
maybe u'r gate needs adjusted

& as far as boost leaks go.. u shoudln't have that tuff of a time eliminating them. & any leak is going to be progressivly worse, the more boost u try to build.. any leak is a horrible one!
Old 11-09-2005, 08:18 PM
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sherwood
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is there exhaust coming form the engine bay?

:Edit:

maybe the turbo is just screwed up :dunno:
Old 11-09-2005, 08:26 PM
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jeterkm02
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So wait, you removed the vacuum hose to your wastegate, and you still couldnt build boost? if thats the case, something is clogging your intake, exhaust or you have a boost leak.

When my intake was clogged i couldnt boost past 3psi.
Old 11-09-2005, 09:29 PM
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CaliDELSOL93si
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did you buy the turbo new or used ??? if it is old and has alot of shaft play, the turbo itself can be the issue.



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