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Author Topic: Speedo calibration?  (Read 811 times)

Offline Dp_Ed30

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Speedo calibration?
« on: May 14, 2012, 09:52:03 am »
Hi guys. Was out last night driving on a long run, had my road angel on and relised my speedo was way out.

At 80mph on the clock my gps was showing 72mph, now I understand that when u rely get going the clocks are always out but at 80mph I'm pretty shocked it's that un accurate.

Is it possible to calibrate it with vcds? I know vauxhalls have diffrent profiles for diffrent size wheels that you select with a tech 2
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Offline Tamiyoman

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Re: Speedo calibration?
« Reply #1 on: May 14, 2012, 10:17:23 am »
Most speedo read 8-10% over what your actually doing, plus your road angel wont be totally accurate anyway. I would nto worry about it
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Offline Andy

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Re: Speedo calibration?
« Reply #2 on: May 14, 2012, 11:02:49 am »
Mine is out bout 5mph,so I just compensate for it
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