2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

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Old 04-19-2008, 05:37 PM
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Help

I just installed my Vibrant header/dp and my 2.9 inch pulley and it seems my car has lost power. What could be the problem? I dont have any CEL's or anything it just seems like the car is sluggish.
Old 04-19-2008, 05:38 PM
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what are you runnin for boost?
Old 04-19-2008, 05:40 PM
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105kpa around there
Old 04-19-2008, 05:42 PM
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I have read that it seems like you loose power, but in fact you haven't. I think it was an0molous that said, it felt less powerful, but did the 1/4 mile faster.

The only sure way of knowing is taking it a dyno.

If there is a problem, it might be an exhaust leak or something.

Last edited by GreenPurgatory; 04-19-2008 at 05:42 PM. Reason: Automerged Doublepost
Old 04-19-2008, 05:57 PM
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Def should not feel less powerful with a smaller pulley and exhaust... You sure the belt is not slipping on the pulley? Stage 2 belt, right?
Old 04-19-2008, 05:59 PM
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well, I assume you put bigger injectors and a tune to go along with the pulley right?
Old 04-19-2008, 06:05 PM
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I am going to have to say, that in reading over it again, I did not realize that the pulley was changed. That could be the source of your problems, the other stuff should not affect much as I said before.
Old 04-19-2008, 06:57 PM
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u may loose tq with the header and dp but gain top end hp

tune it

Last edited by chevysssc; 04-19-2008 at 06:57 PM. Reason: Automerged Doublepost
Old 04-19-2008, 08:13 PM
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I seen that people ran the 2.9 with the stage 2 tune fine. I was wondering if there was a leak somewhere in the exhaust would this cause a noticeable power loss. Yes I do have the stage 2 belt.
Old 04-24-2008, 02:24 PM
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what are you running for a catback????
Old 04-24-2008, 03:02 PM
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Gmpp
Old 04-24-2008, 03:08 PM
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I have the Vibrant H/Dp and Down low it felt a lil softer, or less powerfull. But It should feel stronger mid range and up... then again if your loosing power there is bigger problem
Old 04-24-2008, 03:41 PM
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I had a leak, I got it looked at and got it fixed.




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