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Thread: E4OD Shifting too firm

  1. #1
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    E4OD Shifting too firm

    I already asked on the Stinger forums, but they are being slow to answer...

    I already have a Level 10 shift kit installed on my truck which already gave a more firm shift. Now with the PiMPxShift it's just too firm. How much do you recommend changing the line pressures at a time to see a change?

  2. #2
    Fore!
    Name: David

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    Is the converter locked up on shifts? I would check that first. I知 sure you値l get more input shortly directly related to the software..


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    1995 Black Lightning #772-3600 CircleD converter, TFS Stage2 cam, AFR 195's,1.7 rr's, MAC 1-3/4 Longtubes with flowmasters, TFS R intake, 90mm TB, 60lb/hr Deka's, Aeromotive in tank 340lph, Winstar E-Fans, ASP underdrive pulleys, SVO Smog delete, 180* thermo, 4x4 pan and SVO rear girdle, Punisher custom street VB, Megasquirt2 with Tranny tuned with twEECer
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  3. #3
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    I知 not sure if I can help. I never had to change any of my shift firmness settings.

  4. #4
    Make NLOC Great Again
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    Quote Originally Posted by core-rider View Post
    I already asked on the Stinger forums, but they are being slow to answer...

    I already have a Level 10 shift kit installed on my truck which already gave a more firm shift. Now with the PiMPxShift it's just too firm. How much do you recommend changing the line pressures at a time to see a change?
    I've allowed msq as an accepted attachment, please post your file.

  5. #5
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    Jason L.
    Black '93 Lightning #439
    Built 2/16/93
    Lowered 3"/4" f/r
    PiMPxShift
    460 tube
    Crane 1.7 rockers
    Underdrive pullies
    Custom exhaust
    Level 10 Shift Kit
    E-150 brake upgrade
    A few things for looks... turbo install this Winter!



  6. #6
    Make NLOC Great Again
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    Just to verify you are running a 27" tall tire? Stock is 30"
    1995 Black #2127
    Dart based 427 Windsor, Novi 2000, full sequential, E-85, MS3/3X, blah blah
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  7. #7
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    Yes... 255/50/17. I'm actually still playing with tire size as the speed isn't quite accurate.

    I think I posted the tune file correctly.
    Attached Files Attached Files

  8. #8
    Missing My Lightning!
    Name: Brian

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    Drive the truck and watch the live data. In the areas where it shifts too firm,reduce the pressure. Smooth the line curve up to 100% at full throttle.
    10.26/134 Stock Shortblock...900HP Timebomb! SOLD,But I'm still hanging around.

  9. #9
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    I knocked a bunch of line pressure out of mine. Especially on the part throttle 1-2 shift.
    96 F150 357w/e4od daily driver
    12.59 106 all motor full weight 3-26-19
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  10. #10
    Vrrooooooooooom
    Name: Jeff

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    Like Joe said, I really reduced my line pressure for my built transmission a lot, too.

    I've attached my current trans tune.
    Attached Files Attached Files

  11. #11
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    Yes my 1-2 shift is the worst. At about 10mph maybe 10-20% throttle it just slams into gear. I値l look at your tune file and see how different the pressures are. Thanks fellas!


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    Jason L.
    Black '93 Lightning #439
    Built 2/16/93
    Lowered 3"/4" f/r
    PiMPxShift
    460 tube
    Crane 1.7 rockers
    Underdrive pullies
    Custom exhaust
    Level 10 Shift Kit
    E-150 brake upgrade
    A few things for looks... turbo install this Winter!



  12. #12
    Vrrooooooooooom
    Name: Jeff

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    Pressure 10 13 24 70 90 92
    Load 0 17 45 58 70 100

    Keep in mind that no matter how low you decrease the pressure, you cannot go below the physical characteristics of the valve body. My first two or three "pressure" numbers are probably artificially low, meaning that the spring pressure is probably higher than what I have the pressure value set to.
    #74 in 1995, Crimson
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  13. #13
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    Quote Originally Posted by FMOS Racing View Post
    Pressure 10 13 24 70 90 92
    Load 0 17 45 58 70 100

    Keep in mind that no matter how low you decrease the pressure, you cannot go below the physical characteristics of the valve body. My first two or three "pressure" numbers are probably artificially low, meaning that the spring pressure is probably higher than what I have the pressure value set to.
    I haven't had time to look at your msq file yet, but I'm guessing those are your numbers for pressure and load? I'll be fine if I can get back to the Level 10 spring pressure settings as they've been fine for 20+ years... firm yet not unbearable like it is now.
    Jason L.
    Black '93 Lightning #439
    Built 2/16/93
    Lowered 3"/4" f/r
    PiMPxShift
    460 tube
    Crane 1.7 rockers
    Underdrive pullies
    Custom exhaust
    Level 10 Shift Kit
    E-150 brake upgrade
    A few things for looks... turbo install this Winter!



  14. #14
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    Those settings seemed to do the trick. Feels MUCH better on 1-2 and 2-3 shifts!

    Played with AutoTune for a bit today and man that is convenient for us noob tuners! I guess I知 doing it right... just turned it on and started driving around. Applied the changes and saved them to the ECU.


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    Jason L.
    Black '93 Lightning #439
    Built 2/16/93
    Lowered 3"/4" f/r
    PiMPxShift
    460 tube
    Crane 1.7 rockers
    Underdrive pullies
    Custom exhaust
    Level 10 Shift Kit
    E-150 brake upgrade
    A few things for looks... turbo install this Winter!



  15. #15
    Senior Member
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    After a while it will start chasing its tail changing the VE table back-and-forth in certain cells depending on driving habits.

    Once you get to that point what works well is datalogging a nice long drive with your laptop and then running an autotune on the datalog in megalog viewer.

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