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High rpms

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Old 11-01-2012, 01:50 PM
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High rpms
L28et I'm shifting through the gears and as I shift the rpms hold still for 2 to 3 seconds then idles down. I'm stumped as to what it could be.?
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Old 11-01-2012, 02:23 PM
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do you take your foot off the gas? your description leaves a lot to the imagination
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Old 11-01-2012, 04:07 PM
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Are you running a stock turbo setup, bov, etc?
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Old 11-02-2012, 01:38 PM
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Yes I take my foot off the gas. And the rpms still stay where they are for 2 to 3 seconds. Stock setup bov welded to j - pipe.
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Old 11-02-2012, 01:43 PM
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I suspect it happens under boost and the excess pressure is keeping the tb open or it's getting past through idle air...
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Old 11-02-2012, 03:19 PM
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it has to do with those gizmos on the manifold driver side. I took mine off solves the problem and the car runs better.
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Old 11-02-2012, 03:42 PM
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I thought it was the same thing fricfac. What gizmos are you talking about rogerz
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Old 11-07-2012, 03:27 PM
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just installed my intercooler and problem solved...
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Old 11-07-2012, 03:36 PM
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all that stuff that hangs off the manifold on the driver side. one is high idle I foget what the other does.
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