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Thread: LS3 525HP chevy crate idles at 975 RPMs

  1. #1
    Potential Tuner
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    Jul 2019
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    Iowa
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    LS3 525HP chevy crate idles at 975 RPMs

    anyone run into this with there Chevy crate engine?

  2. #2

  3. #3
    Advanced Tuner jsllc's Avatar
    Join Date
    Sep 2015
    Location
    Bozeman, MT
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    It is written into the OS. BE VERY careful flashing an OS that does not belong on your ECM. May end up with a paper weight.
    2012 ZL1 - Maggie Heartbeat, Port & Polish Heads, Custom Cam, Custom rotating assembly, steel sleeved LS9, No NOS and No water meth. 16psi
    810rwhp and 820rwtq 91 Octane 6400 rpm
    948rwhp and 951rwtq 105 Octane 6400 rpm
    999rwhp and 997rwtq on 60% Ethanol 6400 rpm

  4. #4
    Potential Tuner
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    Not enough experience to try this on my own, any recommendations on anyone to help me with remote tuning?

  5. #5
    Advanced Tuner jsllc's Avatar
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    Sep 2015
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    Bozeman, MT
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    Quote Originally Posted by Rob Torry View Post
    Not enough experience to try this on my own, any recommendations on anyone to help me with remote tuning?
    Tuner will need the car.

    http://www.mikenorrismotorsports.com/
    2012 ZL1 - Maggie Heartbeat, Port & Polish Heads, Custom Cam, Custom rotating assembly, steel sleeved LS9, No NOS and No water meth. 16psi
    810rwhp and 820rwtq 91 Octane 6400 rpm
    948rwhp and 951rwtq 105 Octane 6400 rpm
    999rwhp and 997rwtq on 60% Ethanol 6400 rpm