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Thread: Dyno results

  1. #31
    I don't bite
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    Quote Originally Posted by pat3000gt View Post
    familyman is right I did have boost spiking. they tried to reduce the spiking but it still did it just not as bad.
    now I have a question, I wanted to pass emissions testing but that still showed high hc on the test. so I still think I am running rich.
    How do they do your emissions test? Idle and/or free rev to 2500ish? Stock cat or high flow aftermarket? What was your results vs the limit? High HC can be because too lean, poor cat, missfire, and a few other reasons. I would think your tuner should be able to tune your car to match the specific emissions requirements.
    Last edited by familyMAN; 07-14-2012 at 01:07 PM.
    1992 Kilder Green VR4 - First 4G swap in a 3S. 2.0, auto, awd. 9.65 at 143mph. Now LS swapped. 8.52 at 162.

  2. #32
    yea I went back to the tuner and complained. so he agreed to go over to the test station and do two tunes one for emissions and the other one as it stands no charge. he liked that tune he was very happy with it.
    the station said it was ok so he going to tune live at the ilde and 2500 rpm range and give both to me.

    as far as next I think the exhaust system an a new cat. are random tech cats worth the money?

    once he exhaust is done i going to look at the drive shaft and then maybe some type of injection system any suggestions?
    Last edited by pat3000gt; 07-15-2012 at 09:26 AM.

  3. #33
    I don't bite
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    I am catless but I believe others on here have used random cats.

    After a cat, I would highly suggest getting your aftermarket cams degreed to make sure they are at the correct lobe center. Easiest to do it with engine out of car, but I think it could be done with engine in car. After you know they are zeroed correctly, I would have your tuner play with the advancing/retarding the cams on the dyno.

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