Does anyone know the turns per kilometer for the 200 kmph cooper s speedo in the link below?

http://minisport.com.au/cooper-s-speedo-200km-smiths

I'm trying to work out which speedo drive gears I need.

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Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

It's made for a Cooper S with 3.444 diff, I run one in mine.
So, TPM would be 1280, therefore TPKm would be ~790.
You just need std early (pre-1980) speedo gears 6T/17T

I'm putting a 140KMH Moke one in mine instead, it is 800TPKm.
Reason I'm changing- the 200KMH one is reading slower as it gets older, however the odometer is still correct.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thanks, I'm running 12 inch wheels and 2.76 diff gears so I'll need to do some Maths.

_________________
Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto

Hi there

Try using this calculator, it was very accurate when I used it.

http://www.guess-works.com/Tech/ratio.htm

regards
James

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I wish I had some sort of witty quote in my signature

That's what I am using.

They now list the speedo I'm using.

_________________
Lindsay Palmer
06 Mazda SP23
80 Alfa GTV (weekend toy)
86 626 Turbo (daily drive, now stolen)
71 cooper s replica
69 cooper replica
76 clubman
62 english 850
68 Mini Auto