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Thread: 2004 ctv, torquer v2 cam, have scanner log need help with tune

  1. #1
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    2004 ctv, torquer v2 cam, have scanner log need help with tune

    Hi I am working on tuning ls6 with torquer v2 cam. I have a log scanner file of the engine warming up and the current tune I have on it. I took the base tune and added some of initial features here: https://forum.hptuners.com/showthrea...e-(w-pictures)

    I got stuck applying the warm up histogram of air fuel because I do not have a wide band setup. Can someone help me navigate the scanner log file and update my tune to get me going in the right direction? Thanks!

    See attachment for tune and scanner file of warmup.

    Car has 2 degree advance on cam timing with torquer v2. Gutted cats with back O2 sensors turned off in tune. Cold air intake delete with KNN filter replacement.


    Point A Tune and scan log (

    LS6_8162020.hpl

    cts_2020_08_08_stage3.hpt

    )

    ---

    Point B Tune and scan log (

    cts_2020_08_08_stage5.hpt

    LS6_stage_5_8162020.hpl

    )
    Last edited by zraymondb; 08-16-2020 at 07:01 PM.

  2. #2
    Tuning Addict 5FDP's Avatar
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    A wideband is going to be needed.

    Not much to say with those idle logs, it runs okay from the looks of it with no load on the engine.

    The data log is missing many things like injector information, cylinder airmass, knock retard, commanded AFR.
    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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    Quote Originally Posted by 5FDP View Post
    A wideband is going to be needed.

    Not much to say with those idle logs, it runs okay from the looks of it with no load on the engine.

    The data log is missing many things like injector information, cylinder airmass, knock retard, commanded AFR.
    Thanks for reply. Here is a another short idle log.

    LS6_stage_5_8162020_vs.hpl

    looks suspicious with misses on 1 and 4

  4. #4
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    More experiments

    Here is the same tune with 1 degree of timing removed 400-800 rpm

    20-08-16 19-24-38.hpl

    ---

    And another with .2 taken away from stoich AFR

    20-08-18 15-24-04.hpl
    Last edited by zraymondb; 08-18-2020 at 05:36 PM.