Page 1 of 2 12 LastLast
Results 1 to 20 of 28

Thread: Help flair full throttle 4-5 shift

  1. #1
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46

    Help flair full throttle 4-5 shift

    Lately, I've been getting a 4-5 flair only at full throttle. I think it could be because of the converter but I'm not sure. Here is the log flair in 5th.hpl

  2. #2
    Advanced Tuner
    Join Date
    Jul 2020
    Location
    VIC Australia
    Posts
    724
    Yep, genuine slip. Reported torque is low. Also needs more shift pressure. Then an adapt reset / preset.

    Just as concerning, did you notice your O2 switching lean half way through 3rd gear?

  3. #3
    Senior Tuner blindsquirrel's Avatar
    Join Date
    Apr 2017
    Location
    Meridian MS
    Posts
    3,631
    flare
    There are only three Star Wars movies and anyone who says otherwise is a moron.

  4. #4
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46
    Is reported torque being low bad?
    How much should I increase the shift pressure?

    I just looked at 2 previous logs and it shows 4-5 shift tcc pressure drops to 92psi, and another it drops to 94psi. Compared to this log it drops to 79psi. This log a lot sees a lot more TCC slip max of 101.9 vs 19.4 and 13.4. Should I raise the desired pressure to fix it?

    Yeah, #2 spark plug shows lean so I'm getting the engine tune checked soon.
    Last edited by Maxim; 1 Week Ago at 04:09 PM.

  5. #5
    Advanced Tuner
    Join Date
    Jul 2020
    Location
    VIC Australia
    Posts
    724
    Post up your tune. I'll adjust it for you.

  6. #6
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46
    Here's the tune. Tune (12).hpt
    Last edited by Maxim; 1 Week Ago at 07:03 PM.

  7. #7
    Advanced Tuner
    Join Date
    Jul 2020
    Location
    VIC Australia
    Posts
    724
    You will need to adapt reset / preset
    Attached Files Attached Files

  8. #8
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46
    Thank you, I'll give it a try once the lean issue is gone.
    I see just the shift pressures were increased. Will the increase of shift pressure prevent the converter from slipping too?

  9. #9
    Advanced Tuner
    Join Date
    Jul 2020
    Location
    VIC Australia
    Posts
    724
    More than just the shift pressure was done. Converter not touched.

  10. #10
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46
    Ok I see I didn't look in the engine section. I sort of understand the changes in the tourqe model, but what is the purpose of the changes in the tourqe management area?

  11. #11
    Advanced Tuner
    Join Date
    Jul 2020
    Location
    VIC Australia
    Posts
    724
    ? Didn't change anything there cuz.

  12. #12
    Tuner in Training
    Join Date
    Aug 2020
    Posts
    36
    Here is the compare log from the changes you made to his tune.
    Am I reading this wrong, or are there changes to the 'Engine'?
    Thanks,
    -Josh

    CompareLog.png

  13. #13
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46
    Yeah I see this. Last night I opened the 2 files up and some stuff was changed in engine TM and this morning I checked again and nothing is changed. Ill look again because I looked at the files on my desktop, then on my laptop its fine. Weird lmao.

  14. #14
    Advanced Tuner Shrek's Avatar
    Join Date
    Nov 2011
    Posts
    682
    Quote Originally Posted by Maxim View Post
    Yeah I see this. Last night I opened the 2 files up and some stuff was changed in engine TM and this morning I checked again and nothing is changed. Ill look again because I looked at the files on my desktop, then on my laptop its fine. Weird lmao.

    There are a few recent posts on this Forum, regarding the compare feature having issues.

    This may depend on what software version that you are using, and what software version the file was saved with.

  15. #15
    Tuner in Training
    Join Date
    Aug 2020
    Posts
    36
    That's great!

    Compare2.png

  16. #16
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46
    I tried the tune out today its great.
    How can I fix the converter slipping alot for the 4-5 shift?

  17. #17
    Advanced Tuner
    Join Date
    Jul 2020
    Location
    VIC Australia
    Posts
    724
    Show me a good log please. Sometimes there is nothing you can do, and it may also be a bit of noisey data too. I'll have a look.

  18. #18
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46
    Here's a log I just did. 3-4 4-5.hpl
    The first message in this thread has another log you can check out.
    I also know its supposed to slip but the rpms flare up a noticeable amount.
    Last edited by Maxim; 3 Days Ago at 07:23 PM.

  19. #19
    Advanced Tuner
    Join Date
    Jul 2020
    Location
    VIC Australia
    Posts
    724
    Still a slight flare at the end of the 4-5. Have bumped up the 4-5 shift pressure a little more.

    Torque converter. I have put in some experimental settings. If you are able to do another 3-4, 4-5 run like you just did I'd be keen to see if there has been an improvement. Would like to see the log ASAP just to make sure its healthy. Basically the jist is it should apply full pump pressure to the converter.
    Attached Files Attached Files
    Last edited by hjtrbo; 3 Days Ago at 07:45 PM. Reason: Include attachment

  20. #20
    Tuner in Training
    Join Date
    Jul 2022
    Posts
    46
    Did you mean to attach a tune? Because I don't see anything.


    - Ok got it I'm gonna drive it for a little so it relearns and I should have a log up in a little.
    Last edited by Maxim; 3 Days Ago at 08:38 PM.