• Performance chip for c4
  • Performance chip for c4
  • Performance chip for c4
  • Performance chip for c4

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  1. #1
    Member vettin's Avatar
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    Apr 2005
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    1986 Corvette Pace Car
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    Default Performance chip for c4

    Hi guys. I have a 86 convertible automatic. It is a stock car and I am woundering what is out the're for performance chips. I have looked around a bit but still not sure what to get. I use my car as a daily driver but still would like more power. Thanks
    Greg

  2. #2
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    Quote Originally Posted by vettin View Post
    Hi guys. I have a 86 convertible automatic. It is a stock car and I am woundering what is out the're for performance chips. I have looked around a bit but still not sure what to get. I use my car as a daily driver but still would like more power. Thanks

    I would like to share my experience with you because EPROM is an issue most people are a bit unfamiliar. The binary files can be changed, such as VATS, MPH, disabling EGR. etc.
    In most cases, the timing maps have been modified. With a little research and experience you can make these chips in your own garage for as little as $1.00 plus $200-$300 for a one time investment in equipment.
    The challenge is just gaining some experience.
    After having so much time with this, I have to say.here are some test results. for a custom chip created for this specific
    1985 L98 Corvette which had a ported plennum, larger intake runners. The motor did dyno using stock and a custom programmed chip.
    The custom programmed chip only gave 3 more horsepowers over the stock chip.
    Considering all the dyno time used testing the chip and all effort to change the chip.
    I have to admit that GM did a pretty good job with the stock chip.
    I would save that money and save some more and buy a nice free flow catback exhaust as for starters.

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