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

vibration after LT install.

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Old May 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?
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Old May 30, 2007 | 10:40 PM
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it comes in handy when girls are in the car
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Old May 30, 2007 | 11:44 PM
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Originally Posted by Revelation Z28
it comes in handy when girls are in the car
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Old May 30, 2007 | 11:45 PM
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Did you have to jack the motor up to put the LT on?
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Old May 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.
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Old May 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.

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Old May 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.
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Old May 31, 2007 | 12:02 AM
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And how many Beers
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Old May 31, 2007 | 12:11 AM
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none... but i went through 2 packs of cigarettes haha
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Old May 31, 2007 | 12:12 AM
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Mine did but it was an O2 related problem. Yours could be from motor mounts.
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Old May 31, 2007 | 01:18 AM
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poly mounts= wet passenger seat from the passenger.
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Old May 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.
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Old Jun 3, 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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