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Recalibrate Speedo

Discussion in 'Wheels & Tires' started by DMBfan, Sep 6, 2018.

  1. Sep 6, 2018 at 8:23 PM
    #1
    DMBfan

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    DMBfan [OP] New Member

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    So I just pulled the trigger and went to my local motorsports shop and put a 6"BDS lift w/ 35" tires on my Tundra (looks sharp). I have read the speedometer should be re-calibrated since the tire size has changed. Does anyone know if this is true?
     
    DMBfan, Sep 6, 2018
    #1
  2. Sep 6, 2018 at 8:23 PM
    #2
    T-Rex266

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    T-Rex266 Elon approved Staff Member

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    Yes
     
    T-Rex266, Sep 6, 2018
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  3. Sep 6, 2018 at 8:24 PM
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    Rica25

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    How do you recalibrate
     
    Rica25, Sep 6, 2018
    #3
  4. Sep 6, 2018 at 8:26 PM
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    T-Rex266

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    T-Rex266 Elon approved Staff Member

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    Hypertech speedo calibrator can do it
     
    T-Rex266, Sep 6, 2018
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  5. Sep 7, 2018 at 5:44 AM
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    Sas

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    Lost track after #1.
    Looks like a pretty easy plug and play install. Saves me $100 by just buying the thing and doing it myself.
     
    Sas, Sep 7, 2018
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  6. Sep 7, 2018 at 5:44 AM
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    DMBfan

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    DMBfan [OP] New Member

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    Shouldn't the shop have done this?
     
    DMBfan, Sep 7, 2018
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  7. Sep 7, 2018 at 5:48 AM
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    4Runner

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    4Runner New Member

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    Magnuson Supercharged, FOX 2.5 DSC front and rear, TRD Exhaust, TRD Rear Sway, and many more....build thread coming
    I guess if they carry the Hypertech they could have offered as an option. I’m just living with mine be off a few mph.
     
    4Runner, Sep 7, 2018
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  8. Sep 7, 2018 at 6:09 AM
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    Sas

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    Lost track after #1.
    Mine will be about 6 mph faster when going 70 mph. That's a little too much for my liking.
     
    Sas, Sep 7, 2018
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  9. Sep 7, 2018 at 7:12 AM
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    Rica25

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    Exactly the same here
     
    Rica25, Sep 7, 2018
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  10. Sep 7, 2018 at 7:14 AM
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    ChrisTRDPro

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    Not only is the speedo off, the odometer will be off too. It adds up fast how quickly that thing gets out of whack.
     
    ChrisTRDPro, Sep 7, 2018
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  11. Sep 7, 2018 at 7:15 AM
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    Rica25

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    How much does it run for the hypertech part?
     
    Rica25, Sep 7, 2018
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  12. Sep 7, 2018 at 7:39 AM
    #12
    Sas

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    Sas, Sep 7, 2018
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  13. Sep 7, 2018 at 7:45 AM
    #13
    Rica25

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    Besides calibrating does it do anything else
     
    Rica25, Sep 7, 2018
    #13
  14. Sep 17, 2018 at 5:17 PM
    #14
    mfire01

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    mfire01 New Member

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    i just installed a
    $196 hypertech 730119 speedometer calibrator
    hypertech 730119 on my 2017 tundra CM. I went from a 255/70/18 to a 305/55/20. I cannot get my speedo correct with the hypertech. I have contacted hypertech and they just keep telling me to play with it until its corrected. My speed is off 2 miles an hour faster than speedo is showing. I can get it to match my GPS speed but then my odometer is off my 3 to 4 tenths which adds up. does anyone have a suggestion?
     
    mfire01, Sep 17, 2018
    #14
  15. Sep 17, 2018 at 5:21 PM
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    ChrisTRDPro

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    The odometer is based off the speed. How do you know the odo is wrong? If you can get the speed correct, stick with that.
     
    ChrisTRDPro, Sep 17, 2018
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  16. Sep 17, 2018 at 5:30 PM
    #16
    mfire01

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    mfire01 New Member

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    i can set the speed using my garmin GPS. I can get on the interstate and stop at the mile marker. I reset my trip on and reset the GPS at the next mile marker the gps is right but my truck is at 7 to 8 tenths of a mile. but the speed is dead on. thats why i'm confused. I can take my wifes camry and test it and it is dead on with the gps and miles.
     
    mfire01, Sep 17, 2018
    #16
  17. Sep 17, 2018 at 5:50 PM
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    Sas

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    Lost track after #1.
    Not all tires are sized exactly the same. You can either look up the exact tire size by the manufacturer and try using the equivalent of whatever size that is, or keep changing the height of the tire until you find one that works.
     
    Sas, Sep 17, 2018
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  18. Jul 23, 2020 at 6:39 AM
    #18
    2006Tundra

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    2006Tundra Financially Irresponsible

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    Has anyone had any luck calibrating their speedometer on a 2006 Tundra after re-gearing and bigger tires?
     
    Last edited: Jul 23, 2020
    2006Tundra, Jul 23, 2020
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  19. Oct 5, 2020 at 12:16 PM
    #19
    2006Tundra

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    2006Tundra Financially Irresponsible

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    bump
     
    2006Tundra, Oct 5, 2020
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