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Thread: Uni chip/ are they woth it...??

  1. #1
    Join Date
    Feb 2011
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    Denmark Western Australia
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    Uni chip/ are they woth it...??


  2. #2
    Join Date
    Jan 2007
    Location
    Sydney
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    I put one in my D1 in about 98 and my recollection is about the same as the article. A bit of an improvement to the fuel economy and a noticeable but not huge improvement in performance, particularly off idle. I was happy with it at the time - cost about $11 or $1200 then.

    Bear in mind its not plug and play, the gains are made on the dyno and mine was fitted and tuned by GC and to a relatively new motor. Whether it would be worth it on a 15 year old motor is another story.

    Cheers,
    Jon

  3. #3
    Join Date
    Jan 1970
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    Avoca Beach
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    A bit has changed since 2002.
    Most dealers including Graeme Cooper have given up their Unichip franchise as Unichip charged them a monthly fee to use the software.

    There is (or was 2 years ago) only one Unichip dealer in Sydney.

    AFAIK Graeme Cooper now sell Haltech piggybacks which have the same functions.

    I have had a Unichip since about 2002 and am very happy with it.

    I have found GC were very conservative with the electronic advance curve, as they must be, and I have added about 3-4 degrees static without any pinging.

    IMHO , a piggy back is a very good solution for "modernising" the 14CUX, as the Australian tune was always "rest of world" and set to AFAIR 89RON ., so there is always scope for much more advance.

    You can get a replacement ECU probably for a similar cost, but this is without dyno time or fitting and you lose the research into starting strategies etc that the 14CUX has and cost carmakers millions in dyno time.

    Back in about 2005 or so Graeme told me he hated fitting aftermarket ECUs even with dyno time as they were never as seamless as the 14CUX and there were always customer complaints.
    I have experienced this with fellow club member cars , which never started as well as mine under say hot conditions.
    So IMHO , the piggybacks are a good solution especially if you are not interested in doing your own R&D by driving in many different conditions while looking at a laptop, or do not have the time or the computer skills.

    Regards Philip A

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