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Thread: Wot rpm problem 3ar sd tuning

  1. #1
    Tuner in Training
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    Wot rpm problem 3bar sd tuning

    the problem is at wot it is not past the 3400 rpm
    100% tps
    10.5 timing
    12.5 afr
    150 kpa map
    3.2 hp version

    do you think that i miss some thing in tuning or is it normal for 4200 torque converter hear is the log and the tuning

    333333333333333333333333.hpl
    last one spark change.hpt

    the car is f- body 95 swap LS
    3bar sd tuning
    5.3 engine 1200 injector
    gt47 turbo
    9 inch deff
    th400 4200 torque converter


    thanks for any help
    Last edited by dodiibob; 10-01-2016 at 07:12 AM.

  2. #2
    Tuning Addict 5FDP's Avatar
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    What kind of MAP are you using?

    I've never seen MAP linear and offset readings like that before. You also don't want to run a duramax 3.3 MAP on a gas car. If it's a 3 bar OS you only want to run a 3 bar MAP with correct linear and offset settings.

    Also you MAF dtc's aren't set correctly, they need to be on first error for speed density tuning.
    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
    Tuner in Training
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    5FDP thanks

    it is 12623671 3.3 MAP

    to run 3 bar MAP with correct linear and offset settings with 3 bar os
    what 3 bar map sensor you suggested part number or internet link pleas

    abut the dtc i will change it
    Last edited by dodiibob; 10-03-2016 at 08:00 AM.

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  5. #5
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    Quote Originally Posted by Throttle View Post
    thank you for your help