speedo calibration

Technical advice Q&A
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DWW
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#1 speedo calibration

Post by DWW » Mon Mar 14, 2022 6:26 pm

I know there were post regarding this subject in respect of tyre size or differential ratios etc'. After upgrading to a 5 speed gearbox my speedo is 10mph adrift so when my speedo shows 30mph real speed according to my dash GPS speedo is 40mph. Who or how can this be addressed without performing the flag rotation count procedure.
Danny

1962 S1 3.8 FHC (1012/1798)
2015 Range Rover Sport SVR
"Experience is something you don't get until just after you need it."

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mgcjag
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#2 Re: speedo calibration

Post by mgcjag » Mon Mar 14, 2022 6:58 pm

Hi...whats your name..please try to put it in the signature area.......to re calibrate your speedo you will need to "flag/rotate"..contact one of the guage restorers...speedy cables etc then send off your speedo....Steve
Steve
69 S2 2+2 (sold) ..Realm C type replica, 1960 xk150fhc

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DWW
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#3 Re: speedo calibration

Post by DWW » Mon Mar 14, 2022 7:11 pm

Thanks.

Danny.
Danny

1962 S1 3.8 FHC (1012/1798)
2015 Range Rover Sport SVR
"Experience is something you don't get until just after you need it."

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caveman
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#4 Re: speedo calibration

Post by caveman » Mon Mar 14, 2022 7:32 pm

Steve
1965 S1 4.2 FHC (early)
:wavegreatbritain:

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