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Thread: speedometer calibration??

  1. #21
    Variable Bitrate
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    Printing a stretched guage dial won't work, the difference is a percentage. The higher your driving speed, the more incorrect it becomes. Basically, the space between the 110mph and 120mph marks will have to be quite a bit bigger than the space between the 10mph and 20mph marks. The guages will look weird with uneven spacing.

  2. #22
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    Quote Originally Posted by Bobby Digital
    Printing a stretched guage dial won't work, the difference is a percentage. The higher your driving speed, the more incorrect it becomes. Basically, the space between the 110mph and 120mph marks will have to be quite a bit bigger than the space between the 10mph and 20mph marks. The guages will look weird with uneven spacing.
    Umm...I was just joking
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
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  3. #23
    FLAC djmickyg's Avatar
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    Quote Originally Posted by Scouse Monkey
    Was using a TomTom today and it was showing my speed about 5mph higher than the clock in the rented Passat i was driving and also does the same in the Merc. Readings where very constant too so it seemed pretty accuate - very strange. Maybe most cars underread a bit - would explain why the speedo in my mums fiesta 1.1 used to do 110 when i was leaning to drive in it
    yeah car speedo's are usualy under by about 5-10%

  4. #24
    Stank Cheese n8scstm's Avatar
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    Quote Originally Posted by Bobby Digital
    Printing a stretched guage dial won't work, the difference is a percentage. The higher your driving speed, the more incorrect it becomes. Basically, the space between the 110mph and 120mph marks will have to be quite a bit bigger than the space between the 10mph and 20mph marks. The guages will look weird with uneven spacing.

    Actually it would because the difference is a percentage and it doesnt change. Mine is off by 33%. The space between 5 and 10 mph wouild be 33% larger and the difference between 65 and 70 mph would also be 33% larger. Thats the best way I can explain it. But I wouldnt do that anyways because I just got cadiallac escalade gauges for christmas and Im not about to ghetto them up.
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  5. #25
    Newbie Seifer's Avatar
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    How about this.
    My baby is done ...Go the soarer

  6. #26
    Admin. Linux loser.
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    Quote Originally Posted by Seifer
    How about this.
    Great avatar, Seifer.
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  7. #27
    Registered User Dudes99's Avatar
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    Lightbulb

    Hey Stank, have you looked at this yet? http://www.superlift.com/products/misc/truspeed.asp The cheapest I found on Froogle was $175.00 OR go to a local garage and I bet they would reprogram it for you pretty cheap.
    P.S. I'm lovin your "rebuild"

    Go big or Go home

  8. #28
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    setting the pinion factor to set speedsensor

    the 1st thing u have to do is see in inches the middle of tire after it is mounted. then find out how many inches r in a mile devide it this will give the tire revs in a mile. now get drb scan hooked up go to anti brakes click on 9 it will bring up pinion factor it will ask u what size rearend and revs for the tire all u have to do is enter the rev # and wait for it to program. do this alot i work at a chev,dodge,jeep dealership......

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