2nd Generation Specific 1986-1992 Discussion

Only Making 6lbs. Of Boost

Old 06-05-2004, 05:54 PM
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I am having issues with boost in my car. I just recently replaced a blown turbo on my car and I was only hitting around 3-4#'s of boost. Fixed a few vacuum leaks such as replaced the grommets on my injectors (ones on there not even fit for my car!) and we adjusted my bov harder since it was set on about the softest setting possible.....but im still only hitting about 6lbs.....the only possible thing i can think of is that I am missing 2 upper nuts on my exhaust manifold. Could this be my problem with boosting???
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Old 06-05-2004, 06:37 PM
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By the way, i have sprayed EVERYWHERE with starter fluid
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Old 06-05-2004, 07:01 PM
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Lets swap bovs I bet thats it.
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Old 06-05-2004, 07:03 PM
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put the nuts on your manifold too
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Old 06-05-2004, 07:04 PM
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I know for a fact its a boost leak. You car really hear that sucker when you get on it, and if we disconnect the w/g line the sucker makes 17psi hehe.
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Old 06-05-2004, 07:07 PM
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Originally Posted by 1Revvin7' date='Jun 5 2004, 04:04 PM
I know for a fact its a boost leak. You car really hear that sucker when you get on it, and if we disconnect the w/g line the sucker makes 17psi hehe.
no if it makes 17psi with the wg unplugged then you need a boost controller
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Old 06-05-2004, 07:10 PM
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Originally Posted by j9fd3s' date='Jun 5 2004, 07:07 PM
no if it makes 17psi with the wg unplugged then you need a boost controller
With the w/g not opening(disconnected) ofcourse its gonna make insane psi. We just did it to see if it would make MORE than 6psi...

He wants to run it with whatever the stock w/g will run...
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Old 06-05-2004, 08:27 PM
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Originally Posted by 1Revvin7' date='Jun 5 2004, 04:10 PM
With the w/g not opening(disconnected) ofcourse its gonna make insane psi. We just did it to see if it would make MORE than 6psi...

He wants to run it with whatever the stock w/g will run...
ok well you're there?
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Old 06-05-2004, 10:20 PM
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Originally Posted by j9fd3s' date='Jun 5 2004, 05:27 PM
ok well you're there?
When i said hitting 6psi that was in the higher gears on the highway...i'm only hitting around 2-3 in the lower gears right now
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Old 06-07-2004, 12:16 AM
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If what you are saying is you are missing 2 of the 4 manifold to motor nuts, then yes that is your problem. An exhaust leak before the turbo will cause sluggish and lower boost. If you are tuning it that way it will also effect wb readings.
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