LT1-LT4 Modifications 1993-97 Gen II Small Block V8

vibration after LT install.

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Old 05-30-2007, 09:17 PM
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Default vibration after LT install.

How many people have gotten a vibration after they have installed pacesetter long tubes? I know it is the exhaust, if you rev the car out of gear and as it comes down thru the RPMs around 2600rpm Im getting the vibration. Any one?
Old 05-30-2007, 10:40 PM
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it comes in handy when girls are in the car
Old 05-30-2007, 11:44 PM
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Originally Posted by Revelation Z28
it comes in handy when girls are in the car
Old 05-30-2007, 11:45 PM
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Did you have to jack the motor up to put the LT on?
Old 05-30-2007, 11:52 PM
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no, but i had the car on a floor jack with 6 2x4's to raise it higher. tip of the front bumper was up to my chest. im 5'9

i took the valve covers off, alternator, and the little **** that gets in the way. starter stayed.
Old 05-30-2007, 11:57 PM
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Originally Posted by Revelation Z28
no, but i had the car on a floor jack with 6 2x4's to raise it higher. tip of the front bumper was up to my chest. im 5'9

i took the valve covers off, alternator, and the little **** that gets in the way. starter stayed.

Old 05-30-2007, 11:59 PM
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on top of that, it took me 24hrs from start to finish to be done with it.
Old 05-31-2007, 12:02 AM
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And how many Beers
Old 05-31-2007, 12:11 AM
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none... but i went through 2 packs of cigarettes haha
Old 05-31-2007, 12:12 AM
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Mine did but it was an O2 related problem. Yours could be from motor mounts.
Old 05-31-2007, 01:18 AM
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poly mounts= wet passenger seat from the passenger.
Old 05-31-2007, 07:02 PM
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I have poly everything. But i didnt think the vibration would be that bad since i had mids on the car before. I have a tubed k member so the install with new plugs only took 5 hours. The O2s were pretty black ( wot air-fuel is 12.8 to 1) But i may need to get new ones, I think they have 15,000 miles on them. Oh and the vibration is worse with the A/C on.
Old 06-03-2007, 05:28 PM
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my car vibrates too, i'm just saving money to take it to a shop to get a dyno because I just have a mail order right now, and fix the vibration whiles its there, I hope . I also changed both of my 02's, it helped a lot, but there is still a vibration. I just hope its not a motor mount or something, because we just put the 383 in there, and that is when the problems started. i'm not even driving the car because I am affraid to hurt something. its terrable I have to look at it every day with the new motor in it, and cant even drive it.




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