accurate speedometer

Discussion in 'Common Issues' started by triroketman, Aug 27, 2006.

  1. triroketman

    triroketmanSupercharged

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    You have probably hashed this out before, but I'm new.
    I had the local constable check my speed and found that the Rocket Speedo is 5mph faster than I am really going. Have any of you experienced this and is there any way to correct it.
    Thanks
    Dave
     
  2. ValknRocket

    ValknRocket.020 Over

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    Most of them read about 6% faster than you are going acording to my GPS. The Tuneboy will correct your speedo error aiong with many other benifits.
     
  3. Pig9r

    Pig9rLiving Legend

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    Yes it is a comman issue. Tuneboy has an option to change the wheel speed constant in the ECU. I think what Wayne from Tuneboy found was that there was about a 7% error (reading was too fast). I have corrected mine but have not verified the accuracy.
     
  4. sullyjones

    sullyjones.060 Over

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    Corrected mine with tuneboy , spot on with gps now .
     
  5. jefff1

    jefff1.040 Over

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    :) Had the local police radar me on a number of runs and found I'm 5-7 mph fast....Just waiting for my Tuneboy key to get this straightened out and a couple of other things as well...
     
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