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Thread: rpm rev limiter popcorn

  1. #1
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    rpm rev limiter popcorn

    hello how is everybody i know this is not good for the engine and no use of it but i want to know how to make both P12 ecm for 2007 I6 trailblazer and 2008 yukon xl 5.3 rev until 6000rpm in park and do the fast cutoff as cold ( popcorn ) like in the attached youtube video


    https://www.youtube.com/watch?v=q_ystEXwoOs
    Attached Files Attached Files

  2. #2
    Tuning Addict 5FDP's Avatar
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    Yeah, that's not going to happen on engines/computers like these.


    You can change the park/neutral rev limiters to 6,000rpm but they'll never pop and brap off the limiter like that car does. They'll just hit redline and slowly back off and come back to it again.
    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.

  3. #3
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    i saw it work with a tuner on hptuner but dont know how

  4. #4
    Tuning Addict 5FDP's Avatar
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    I could see it happen on a Drive by Cable throttle body maybe but much different on the electronic controlled throttle bodies.
    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.

  5. #5
    Senior Tuner SultanHassanMasTuning's Avatar
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  6. #6
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    sultan can you please tell me exactly step by step what to do ? please

  7. #7
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    also btw the trailblazer if i disable ETC limit there will be no rev limiter if i set it 5000 P/N it will go to 7000 and dont stop if i try making it both spark and fuel or only one it will not stop either

  8. #8
    Potential Tuner sin5tr's Avatar
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    2-step done
    ---
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  9. #9
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    can i know what are the 2-step done

  10. #10
    Advanced Tuner NJ_Phil's Avatar
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    Interested to see how this plays out
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  11. #11
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