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Thread: Parameter Added - Driven Tire Circumference

  1. #21
    HPT Employee Eric@HPTuners's Avatar
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    Excellent.
    Eric Brooks
    HP Tuners, LLC

  2. #22
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    I'm working on 2015 F150 3.5L Ecoboost, trying to do tire change. Followed all these threads and using 2.25 Beta, but tire/axle changes have no effect on speedo. I don't see the "Use VID" switch shown above, also only have "N/V base". Is there a VID switch needed?

  3. #23
    HPT Employee Eric@HPTuners's Avatar
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    The 2015 is handled differently and it cannot be changed via the calibration currently.
    Eric Brooks
    HP Tuners, LLC

  4. #24
    My 2010 V10 calibration for speedometer is funny. The only thing I have under the table is VSS counts per mile (currently says 670 - which would call the tires 30" tires and the stockers are much bigger).

  5. #25
    HPT Employee Eric@HPTuners's Avatar
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    Quote Originally Posted by E55Amg View Post
    My 2010 V10 calibration for speedometer is funny. The only thing I have under the table is VSS counts per mile (currently says 670 - which would call the tires 30" tires and the stockers are much bigger).
    It doesnt even use that value unless the Use VID option is set to disable.
    Eric Brooks
    HP Tuners, LLC

  6. #26
    Quote Originally Posted by Eric@HPTuners View Post
    It doesnt even use that value unless the Use VID option is set to disable.
    Unfortunately, that's literally the ONLY parameter listed in that portion of the tune for me. So I guess I have no speedometer calibration items then either.

  7. #27
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    I cant seem to change the speedometer on a 2015 F-150. Is this calibration available for this truck yet?

  8. #28
    HPT Employee Eric@HPTuners's Avatar
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    Quote Originally Posted by jaykat03 View Post
    I cant seem to change the speedometer on a 2015 F-150. Is this calibration available for this truck yet?
    The BCM controls the speedometer on the 2015+ F-150 and Mustang. We are working on adding support for this.
    Eric Brooks
    HP Tuners, LLC

  9. #29
    Senior Tuner Higgs Boson's Avatar
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    Eric, I must be crazy, but my speedo does read different and the car shifts different when I change N/V to 43 and change to Enabled with the specific tire height and rear gear in all the cells.

  10. #30
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    Quote Originally Posted by rkrebs27 View Post
    if you disable vid I think you lose the 6-5-4-3-2-1 readout....
    Can anyone confirm if this is true? Will disabling the VID also cause Select Shift to stop working?

    I recently did a gear/tire calibration on a 2012 F-150 5.0L by setting Used Vid to "Disable" and Use Tire Circ. and Use Final Ratio to "Enable" and the customer now complains of Select Shift no longer working.
    Jaime

  11. #31
    HPT Employee Eric@HPTuners's Avatar
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    Quote Originally Posted by Higgs Boson View Post
    Eric, I must be crazy, but my speedo does read different and the car shifts different when I change N/V to 43 and change to Enabled with the specific tire height and rear gear in all the cells.
    Manual or Auto?
    Eric Brooks
    HP Tuners, LLC

  12. #32
    Senior Tuner Higgs Boson's Avatar
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    Quote Originally Posted by Eric@HPTuners View Post
    Manual or Auto?
    auto, but car is gone now.... I do have a 2013 F-150 ecoboost laying around I could play with if you need me to try anything on that.

  13. #33
    Quote Originally Posted by dougtron View Post
    I'm working on 2015 F150 3.5L Ecoboost, trying to do tire change. Followed all these threads and using 2.25 Beta, but tire/axle changes have no effect on speedo. I don't see the "Use VID" switch shown above, also only have "N/V base". Is there a VID switch needed?
    Any update on this? I purchased a license specifically to calibrate the speedometer before discovering it doesn't work yet (2015 F-150 w/V8)

    Thanks Eric!
    -A

  14. #34
    HPT Employee Eric@HPTuners's Avatar
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    Quote Originally Posted by Andy0x1 View Post
    Any update on this? I purchased a license specifically to calibrate the speedometer before discovering it doesn't work yet (2015 F-150 w/V8)

    Thanks Eric!
    -A
    Email support if it is not working for you. It works for us in house.
    Eric Brooks
    HP Tuners, LLC

  15. #35
    Quote Originally Posted by Eric@HPTuners View Post
    Email support if it is not working for you. It works for us in house.
    Should the Enable / Disable toggle for: "Use VID" be present? Its not there for me. Only for tire circ, and final drive.

    I left a message with Support.

    Thanks.

  16. #36
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    When you flash it the first time it goes away. Bump the plus sign on the shifter in drive or park and it comes back on and stays on until flashed again. I had this same issue with a customers truck. 15 f150.

  17. #37
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    I still can't change the speedometer on a 15 f-150. Is this still an issue?

  18. #38
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    Can anyone confirm if speedometer calibration is working on 2015+ Mustangs?

  19. #39
    HPT Employee Eric@HPTuners's Avatar
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    I am still working on this.
    Eric Brooks
    HP Tuners, LLC

  20. #40
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    I am about to do a lift on my 2016 F150 Ecoboost. Is it possibility to correct tire size on it yet?