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Thread: Looking for a turbo tune

  1. #1

    Looking for a turbo tune

    I am looking for a turbo tune for a start up and ability to drive to the dyno? Looking for an SD tune.

    Setup as follows:
    6.0
    6.2 heads
    78/75 turbo
    80lb deka injectors
    2010 zr1 cam
    Ict billet intake w/102 mm Tb
    23131 msd 3bar map
    4l60e trans

    Any help would be great, thanks
    Last edited by Spoolnsquirrels; 05-27-2018 at 10:09 PM.

  2. #2
    Tuner in Training
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    What ecu

  3. #3
    0411 out of a 01 suburban

  4. #4
    Advanced Tuner
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    post your stock file

  5. #5
    this is what i have for a tune so far, but it does not want to start, it tries but dies right away , it acts like its not getting enough fuel. any help would be great im at a loss. i also forgot to mention in first post that i have a wastegate w 14lb spring and the motor is a 7:1 compression forged bottom end motor.
    Attached Files Attached Files
    Last edited by Spoolnsquirrels; 05-27-2018 at 10:05 PM.

  6. #6
    Tuning Addict 5FDP's Avatar
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    Set the 3 MAF DTC's to MIL on first error.

    Who changed the platform type to an F-body? This computer is from a GMT-800 truck, change that back.

    Cylinder airmass is still setup for a 5.3, correct that.

    What is the KOEO MAP sensor kpa reading? Does the MAP data match that sensor?

    If that map is the square brick GM sensor those settings are incorrect. The GM sensor is a 12223861 part number.
    Last edited by 5FDP; 05-27-2018 at 10:10 PM.
    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.

  7. #7
    ok thank you i made the changes which i over looked the 5.3 part and platform, I am seeing the map setting should be MAP Sensor Linear: 329.41
    MAP Sensor Offset: -6.35
    do those look about right?

  8. #8
    I have made all the recommended adjustments and still no start? Anything else I could be missing

  9. #9
    Tuning Addict 5FDP's Avatar
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    Post log and recent tune.
    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.

  10. #10
    i cant get it to run to get a log but here is my current tune
    Attached Files Attached Files

  11. #11
    this is all i can log , there are 2 start attemps
    Attached Files Attached Files

  12. #12
    do I need to make adjustments some where due to the low 7:1 compression?

  13. #13
    Tuning Addict 5FDP's Avatar
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    How would compression be that low? A stock LQ4 has a compression ratio of 9.5:1. No way those 6.2 heads drop you over 2.5:1.

    Do you have fuel and good spark?

    Does it run off starting fluid or brake cleaner?

    Log your injectors as well to see if they are working.
    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.

  14. #14
    i have custom forged arias dished pistons, this motor used to run great on a blow thru but now going efi. It tries to start runs for about 2 sec and dies it acts like its not getting fuel after start

  15. #15
    2nd start attempt log
    Attached Files Attached Files

  16. #16
    log file using brake clean to keep it running
    Attached Files Attached Files

  17. #17
    got it to run a little on its own no brake clean this is the log
    Attached Files Attached Files

  18. #18
    Tuning Addict 5FDP's Avatar
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    Something is wrong with the MAP or the scaling. It's idling in "boost", or above 100kpa which is not good.
    Though that maybe just part of the issues.
    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.

  19. #19
    brand new napa crb 219481 map sensor , just put it in yesterday cause my msd map wasn't working at all

  20. #20
    Tuning Addict 5FDP's Avatar
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    Okay but again like already said the scaling seems off. The KOEO kpa readings should closely match the elevation you are at.

    In that last log it's like 115-119kpa before you try to start 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.