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Thread: SOTF Tuning

  1. #1
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    SOTF Tuning

    Any talk about SOTF Tuning for 03-05 Cummins anytime soon??

  2. #2
    Tuner Turbo_Mike's Avatar
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    Quote Originally Posted by Orange Stroker View Post
    Any talk about SOTF Tuning for 03-05 Cummins anytime soon??
    What does that mean? You want the 4 wheel drive to engage in the tune? lol
    2004.5 325/600 NV5600 3.73 RCLB SRW
    1G 12V rectanglular manifold swap, HE351 clocked and rotated
    5" turboback, IAH delete, flatbed

  3. #3
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    He means comparable to EFI Live's CSP5 OS modification.

    Tune switching without a re flash. I for one would love to see live data tuning in RAM for dyno pulls IE, Rail, pulse, main/pilot timing, shift points. Then when you had a table created that achieved the result you save it to ROM for it to be permanent on a re flash.

  4. #4
    I think he means switch on the fly tuning, like a csp5 switch equivalent.

  5. #5
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    Quote Originally Posted by Kill View Post
    I think he means switch on the fly tuning, like a csp5 switch equivalent.
    I think he was saying that on purpose guys

    lol.
    2005 Cummins 325/600 G56 3.73
    Reving to 4800
    Worked Head, Twin Disc, BBI

  6. #6
    Tuner Turbo_Mike's Avatar
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    Quote Originally Posted by Kill View Post
    I think he means switch on the fly tuning, like a csp5 switch equivalent.
    The only thing I could think of on our trucks that would be considered "shift on the fly" would be the transfer case.
    2004.5 325/600 NV5600 3.73 RCLB SRW
    1G 12V rectanglular manifold swap, HE351 clocked and rotated
    5" turboback, IAH delete, flatbed

  7. #7
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    Look up Optimal welding tunes. hes out of Canada and he sells a SOTF kit for the 03-05 trucks only issues is you have to use his tuning. Im thinking about getting it and then seeing if i can put my tunes on it if i dont like his. But its money wasted if i can not.
    2005 Dodge 2500
    80% over injectors, 5" turbo back exhaust, HP Tuners, ARP head studs.
    Intake, Tater Built Turbo 67/67, Fleece 750 Powerflow CP3.
    2.5" front lvl kit, 35's on 20" Soto 20x10s



  8. #8
    Advanced Tuner Jim P's Avatar
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    Just do the SOTF yourself if you don?t want to waste the money

  9. #9
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    Quote Originally Posted by Jim P View Post
    Just do the SOTF yourself if you don?t want to waste the money
    with the early 03 to 05 cummins no one else has a sotf switch available. he is the only guy i have seen that has been able to make it work.
    2005 Dodge 2500
    80% over injectors, 5" turbo back exhaust, HP Tuners, ARP head studs.
    Intake, Tater Built Turbo 67/67, Fleece 750 Powerflow CP3.
    2.5" front lvl kit, 35's on 20" Soto 20x10s



  10. #10
    Advanced Tuner Jim P's Avatar
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    Anyone can make it work with what?s available in HP Tuners, all it requires is a little ingenuity

  11. #11
    Advanced Tuner Jim P's Avatar
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    If a redneck Alberta welder can figure it out, so can anyone else

  12. #12
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    yea i am no where near that good i only play with it a little here and there with help from a buddy who is a tuner. been just learning at my own pace.
    2005 Dodge 2500
    80% over injectors, 5" turbo back exhaust, HP Tuners, ARP head studs.
    Intake, Tater Built Turbo 67/67, Fleece 750 Powerflow CP3.
    2.5" front lvl kit, 35's on 20" Soto 20x10s



  13. #13
    Advanced Tuner Jim P's Avatar
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    You just need to figure out how/what to tie a SOTF switch in with to make it change which air density table you are running on, each air density table is its own ?tune level?

  14. #14
    Advanced Tuner JaegerWrenching's Avatar
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    Quote Originally Posted by Jim P View Post
    You just need to figure out how/what to tie a SOTF switch in with to make it change which air density table you are running on, each air density table is its own ?tune level?
    Can you limit injection events based on air density tables on these dodges?

  15. #15
    I would think that is possible. I know for the CM2200 ECU, there were 5 different air density tables for the main/pre/post injection events. Just zero out the table for the air density. As Jim said, the trick would be finding out the resistivity range of the air density sensor, and getting a radial dial resistor that matches it.
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  16. #16
    Advanced Tuner Jim P's Avatar
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    Quote Originally Posted by JaegerWrenching View Post
    Can you limit injection events based on air density tables on these dodges?
    Yessir you can.

  17. #17
    Advanced Tuner JaegerWrenching's Avatar
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    Quote Originally Posted by jfreemanak View Post
    I would think that is possible. I know for the CM2200 ECU, there were 5 different air density tables for the main/pre/post injection events. Just zero out the table for the air density. As Jim said, the trick would be finding out the resistivity range of the air density sensor, and getting a radial dial resistor that matches it.
    Just find the air density sensor calibration table and then flip your switch to see voltage on each position and then calibrate the table to match your switch.

  18. #18
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    I was just tinkering with this and using Jims VP tune on a switch so I could try a few different things for testing. But I didn?t get much data before my transfer case decided it was time for a rebuild. (I?m clearly getting better MPG though).

    Not sure what year the OP is but the 03 and early 04 you only have two options for the main tables. Transient and low air density. You can get the desired result of having multiple tunes but its not as ideal as having full control of all the tables like other years.

    But you can tinker with other tables like Baro limiters A/B and correction tables. Even IAT.

    03/04 there is a dual function inlet air temp/baro sensor on your air filter intake pipe. With a switch and some resistors you can tinker.



    Untitled-7.jpg

  19. #19
    Advanced Tuner Jim P's Avatar
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    Quote Originally Posted by Everytime5.9 View Post
    03/04 there is a dual function inlet air temp/baro sensor on your air filter intake pipe. With a switch and some resistors you can tinker.



    Untitled-7.jpg
    That sensor is present on all the electronically controlled Cummins engines, not just the 03/04 Ram application. The baro is what I would use.

  20. #20
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    Quote Originally Posted by Everytime5.9 View Post
    I was just tinkering with this and using Jims VP tune on a switch so I could try a few different things for testing. But I didn?t get much data before my transfer case decided it was time for a rebuild. (I?m clearly getting better MPG though).

    Not sure what year the OP is but the 03 and early 04 you only have two options for the main tables. Transient and low air density. You can get the desired result of having multiple tunes but its not as ideal as having full control of all the tables like other years.

    But you can tinker with other tables like Baro limiters A/B and correction tables. Even IAT.

    03/04 there is a dual function inlet air temp/baro sensor on your air filter intake pipe. With a switch and some resistors you can tinker.



    Untitled-7.jpg
    The optimal welding switch connects to the engine harness at the IAT sensor. The IAT sensor is then removed from the equation.

    Multiple tune tune sets are achieved similarly in EFILive on the LML's.