speedo shows wrong speed

  1. #1
    any ideas of how to adjust the speedo cus since i have bigger alloys the speedo says im doing 50 when actually i am doing about 56 ( i did various different test which included diving along side m8s in diff cars to figure out this exact speed ) which is a big difference specialy since there are loads of speed camaras in the area

    any help how hoe to sync the speedo with how fast my car is acctualy going would be top stuff!
  2. #2
    Posting in wrong thread
  3. #3
    http://www.kouki.co.uk/utilities/vis...ize-calculator
    1 user thanked this post:
  4. #4
    I have the same problem, when I'm doing 70 the speedo says roughly 60 lol, I have fitted 17's though, I was thinking maybe take the speedo apart and take the needles off and move them so that it's resting on 10 mph so that it would give me the right speed, don't quote me on that though I'm not sure if it's even possible, it was just a thought
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  5. #5
    Quote:
    Originally Posted by CbVtR View Post
    I have the same problem, when I'm doing 70 the speedo says roughly 60 lol, I have fitted 17's though, I was thinking maybe take the speedo apart and take the needles off and move them so that it's resting on 10 mph so that it would give me the right speed, don't quote me on that though I'm not sure if it's even possible, it was just a thought
    cheers m8 might be worth a try if there was a away to accurately move the neddle and still alot more help than the first guy that posted had to offer (Y)
  6. #6
    i think it something you will have to live with, just use to tom tom, or road angle to tell you your speed
  7. #7
    i;m runnign 15's and the speedo is still out don;t think saxo are the most accurate of dials anyways. mine are out by 6mph so when doing 30mph actually doing 24mhp according to sat nav
  8. #8
    no speedo is spot on, manufactors do this so you can do them if u get court speeding, must speedo's are out by 5mph
  9. #9
    fit the right size wheel and tyre combo!