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Old 29th October 2021, 19:54   #8
vitesse
I really should get out more.......
 
Rover 75 Saloon

Join Date: Jul 2011
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Quote:
Originally Posted by KWIL View Post
Analogue speedometers are always faster reading because they are required to always keep you within speed limit. Around 10% faster at true 30mph.

Digital relies on the same pulse source as the built in analogue, namely the reluctor ring in the wheel hub. I believe PhilT4 was the inventor.
Sorry but although Phil-T4 is a wizard with electronics it was actually this guy we have to thank for the source: https://www.the75andztclub.co.uk/for...d.php?t=173990

Regards
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