Monster MotorsportAH Fabrications
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  1. #1
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    Dodgy speedo\'s......................(not the swimming type!!)

    Saw this in this week's auto express



    I will try and post in the A3 forum

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  3. #2
    Rev-head's Avatar
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    Re: Dodgy speedo\'s......................(not the swimming type!!)

    Q: How are you posting pics on thread?.............

  4. #3
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    Re: Dodgy speedo\'s......................(not the swimming type!!)

    Hardly news, all speedo's are out by 10%, but always the right way i.e. shows a faster speed than you are actually doing.
    My A4's is almost bang on according to my RA2, as I run 18" wheels which add about 1.5% to the rolling radius, 100 on speedo = 98 on RA2.
    He's got it wrong anyway as at 40k service he'll have actually done 36k miles, not 44k miles.

  5. #4
    fallmonk's Avatar
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    Re: Dodgy speedo\'s......................(not the swimming type!!)

    Pity the police dont take this into effect as well when it comes to speeding !

  6. #5
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    Re: Dodgy speedo\'s......................(not the swimming type!!)

    What, so they could do you for a higher speed than you were actually doing?

  7. #6
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    Re: Dodgy speedo\'s......................(not the swimming type!!)

    yeah that means you're paying for more services than actually necessary!! or your mileage is higher than it should be!

    i thought mine was out, so spotted a community speed display thing on a trailer set up on a road near mine. went past it at 30mph, it said 26mph. went past at 50mph it said 46mph. Mine always is about 4mph out on standard 16" 55 profile tyres (think 55 or 50!?).

    However some 30 slow down signs seem to be set up so that they go off even if you're doing 30. the one near mine goes off when my speedo reads 30mph when actually i must only be doing 26mph!

 

 

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