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Thread: 99 corvette need 3 bar RTT OS

  1. #1
    Potential Tuner
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    Oct 2018
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    Las Cruces NM
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    99 corvette need 3 bar RTT OS

    Hello, I the 3 bar RTT OS is not available to me. I am only getting 4 options which are speed density RTT, 2 bar, 3 bar, and SD&maff RTT. The 2 and 3 bar do not have the RTT which is what I am needing. Is there a way to get this or is that all that the operating system supports? Thanks.

  2. #2
    HP Tuners Support
    (foff667)
    Bill@HPTuners's Avatar
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    Jun 2004
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    If its not available its not available. Thats all the operating system supports.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  3. #3
    Tuning Addict 5FDP's Avatar
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    May 2012
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    Rogers, MN
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    13,533
    Tuning without RTT is easy, you don't even need it.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  4. #4
    Potential Tuner
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    Oct 2018
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    Las Cruces NM
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    😢I find Rtt much easier and convenient to really fine tune afr

  5. #5
    Senior Tuner LSxpwrdZ's Avatar
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    Dec 2008
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    on the Dyno
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    1,825
    Find a 12212156 OS to overwrite into your car. You'll have 3bar with RTT as an option on that OS.
    James Short - [email protected]
    Located in Central Kentucky
    ShorTuning
    2020 Camaro 2SS | BTR 230 | GPI CNC Heads | MSD Intake | Rotofab | 2" LT's | Flex Fuel | 638rwhp / 540rwtq
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