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BFG KO2's 265/70/17 - Speedometer?

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Mitchpage85, Nov 27, 2015.

  1. Nov 27, 2015 at 4:24 PM
    #1
    Mitchpage85

    Mitchpage85 [OP] Member

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    Mitch
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    Im about to place an order for 265/70/17 KO2s for a 2016 DCSB Sport 4x4.

    Will it affect the odometer and speedometer being slightly larger than the stock 265/65/17's??
     
    gsxxr and Sir Taco like this.
  2. Nov 27, 2015 at 4:27 PM
    #2
    unixadm

    unixadm Well-Known Member

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    Your talking about a 3.3% nominal difference - nothing major. At 60 mph on your cluster, you'll actually be going ~62 mph. The OEM speedometer is not certified, so the true difference may be slightly more or slightly less. You can easily use a GPS to determine your true speed at various points after you get new tires, but even at 90 MPH, the difference less a little less than 3 MPH.
     
  3. Nov 27, 2015 at 4:33 PM
    #3
    nevadabugle

    nevadabugle Desert Rat

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    My 265/75r16s make me go 2+ @70mph according to my gps.
     
  4. Nov 27, 2015 at 4:34 PM
    #4
    nevadabugle

    nevadabugle Desert Rat

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    And yes, you will also drive more miles than the odometer shows. So make sure you adjust when figuring mileage.
     
  5. Nov 28, 2015 at 5:37 AM
    #5
    Garyji

    Garyji Well-Known Member

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    Did the GPS test with mine. Speedo says 70, GPS said 71-72.

    G.
     
  6. Nov 28, 2015 at 5:43 AM
    #6
    gsxxr

    gsxxr Well-Known Member

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  7. Nov 28, 2015 at 6:17 AM
    #7
    Wraith600

    Wraith600 Well-Known Member

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    In the settings for the GPS in the truck there is a calibrate option. Use that and drive with the new tires and it will fix it.
     
  8. Nov 28, 2015 at 6:18 AM
    #8
    gsxxr

    gsxxr Well-Known Member

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    Are you able to give me directions on were this setting is. I have been looking with no luck finding it.
     
  9. Nov 28, 2015 at 6:25 AM
    #9
    Wraith600

    Wraith600 Well-Known Member

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    I wish I could off the top of my head but I know it's in there for sure because I have come across it a few times. I am at "work" right now so I can't run out to my truck to take pics.

    In fact it's been brought up a few times in the 3rd gen forums. Just make sure you are parked when going through the settings because a lot are greyed out / don't show up and you may have missed it.

    https://www.tacomaworld.com/threads...-on-my-2016-dcsb-trd-or.397420/#post-11015301
     
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  10. Nov 28, 2015 at 6:26 AM
    #10
    gsxxr

    gsxxr Well-Known Member

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    No rush. If you think about on your way home or something. I will also look again today.
     
  11. Nov 28, 2015 at 6:27 AM
    #11
    Wraith600

    Wraith600 Well-Known Member

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    Yea I will but without a doubt its in there.
     
  12. Nov 28, 2015 at 6:38 AM
    #12
    Wraith600

    Wraith600 Well-Known Member

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    In your Entune manual page 251 - 252 for anyone else that decides to search the forum. (not a sarcastic statement)


    1 Press the “APPS” button.
    2 Select “Setup”.
    3 Select “Navigation”.
    4 Select “Detailed Navi. Settings”.
    5 Select the items to be set.

    Display the “Detailed Navi. Settings”
    screen. (P.249)
    2 Select “Calibration”.
    3 Select the desired item

    The tire change calibration function will
    be used when replacing the tires. This
    function will adjust miscalculation
    caused by the circumference difference
    between the old and new tires.

    INFORMATION
    ● If this procedure is not performed when
    the tires are replaced, the current position
    mark may be incorrectly displayed.
     
  13. Nov 28, 2015 at 6:56 AM
    #13
    gsxxr

    gsxxr Well-Known Member

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    Thanks I will try now
     
  14. Nov 28, 2015 at 7:06 AM
    #14
    gsxxr

    gsxxr Well-Known Member

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    Ok so I found the mode. Entered into and it shows the nav screen. I drove around the block a few times. It never prompt me if it was done calibrating or not.

    How can you tell?
     
  15. Nov 28, 2015 at 7:06 AM
    #15
    gsxxr

    gsxxr Well-Known Member

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    Thanks For The help
     
  16. Nov 28, 2015 at 7:33 AM
    #16
    gsxxr

    gsxxr Well-Known Member

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    Screenshot_2015-11-28-10-31-29.jpg
     

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  17. Nov 28, 2015 at 7:38 AM
    #17
    Wraith600

    Wraith600 Well-Known Member

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    I honestly don't know but if you had a gps (other then in the truck) you could see if it's correct.
     
  18. Nov 28, 2015 at 8:15 AM
    #18
    gsxxr

    gsxxr Well-Known Member

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    I will down load an app and see.
     
  19. Nov 28, 2015 at 8:35 AM
    #19
    WBF610

    WBF610 Member well known

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    Doesn't this just change it for the nav unit? Or does it change the odo/speedo as well?
     
  20. Nov 28, 2015 at 8:39 AM
    #20
    Garyji

    Garyji Well-Known Member

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    I don't have Nav in the truck. Just used my iPad.

    G.
     

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