After having to discover the TPM of a speedo so I could select the right Speedo drives for the gearbox recently, and having to remeber how to do it, I thought I'd write it down this time...
So here it is...
What is the TPM of my speedo
How To: Identifying The Tpm Of A Speedometer
Started by
Guess-Works.com
, Aug 17 2007 12:47 PM
3 replies to this topic
#1
Guess-Works.com
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Posted 17 August 2007 - 12:47 PM
#2
icklemini
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Posted 24 September 2007 - 03:14 PM
not sure what the link above shows - but i find winding the speedo for 1/10th of a mile (whilst counting the turns) then multiply that count by 10 gives you the TPM - turns per mile...
Cheers,
Dave
Cheers,
Dave
#3
Guess-Works.com
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Posted 01 October 2007 - 06:52 AM
The processes in the link are a little more accurate than that...
#4
icklemini
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Posted 04 October 2007 - 06:05 PM
have found its as accurate as you need considering the ratios/drive gears available
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