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Thread: NAG1 TCC Commanded Slip never at 0

  1. #1

    NAG1 TCC Commanded Slip never at 0

    Ive got a 2011 Dodge Challenger with a circle D street series converter in it that I can not get to stop slipping the converter.

    All TCC slip tables have been set to zero, maxed out, and everywhere in between in testing but when the converter is commanded to be locked it still tries to get 15 or more rpm of converter slip. If you give it any load it has larger swings in slip since the clutches are not really designed for any slip.

  2. #2
    Tuner in Training
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    Tcc pattern tables must be zeroed to.

  3. #3
    Quote Originally Posted by arbracam26 View Post
    Tcc pattern tables must be zeroed to.
    Everything is zeroed out. What are the table numbers for the tcc pattern tables?

    Clipboard01.jpg

  4. #4
    Tuner in Training
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    Ok, I zeroed the tables you show to. In apply/release tab on your picture, you have tcc tables to, they also must zeroed. If they are all set to zero, you can?t do anything, there will be always a slight slip.

  5. #5
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    I talk about those tables
    Attached Images Attached Images

  6. #6
    Those control when the converter clutch is applied not how much it slips.

  7. #7
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    if you don?t zeroed those tables to, the tcc always slip. And this table defines up to which rpm tcc slip can go.
    In my tune , if don?t set to zero tables I?m talking about, it doesn?t work.
    If you do a WOT at low end range, it will slip a little, then tcc will be fully blocked. Tomorow, when I will go to work, I will make a log to show you what I mean.

    I don?t know if you understand what I mean, my english is so bad..

  8. #8
    Quote Originally Posted by arbracam26 View Post
    if you don?t zeroed those tables to, the tcc always slip. And this table defines up to which rpm tcc slip can go.
    In my tune , if don?t set to zero tables I?m talking about, it doesn?t work.
    If you do a WOT at low end range, it will slip a little, then tcc will be fully blocked. Tomorow, when I will go to work, I will make a log to show you what I mean.

    I don?t know if you understand what I mean, my english is so bad..
    I understand what you are saying but if i do that wont the converter lock as soon as it goes into that gear?

  9. #9
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    Perhaps I don?t understand what you wan?t ... lol
    You want that tcc fully locked at every rpm range? I?m right?

  10. #10
    I am trying to get it to not command any converter slip when it is locked. It still commands 15-50rpm of slip with slip tables zeroed out and converter locked

  11. #11
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    I log my car today and have the same issue than you…. Always 15/50 rpm of slip and 20 rpm at WOT. I have a stock torque converter.
    But zeroed tables I am talking about help to reduce converter slip. It worked on my car.

  12. #12
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    good thread guys .. in my case i got 4000rpm stall tc i did play with apply and release tables to have better lock between gears but i didn't zero the tcc tables is that mean am not using the full use of my tcc ?? and if so what the best tables numbers to pot on apply / release tables ? i want better lunch from zero and a gear shift gap 900rpm or less ..

    thanks
    Last edited by GeForce1986; 1 Day Ago at 08:17 AM.