speedometer numbers help

[65Austin]

i have a Mk1 cooper speedo, 100 mph with the number 1376 on the face, i believe that this is a turns per mile figure?

i also have a Mk2 cooper 100 mph that i thought the internals could be used for parts to repair the MK1 speedo, i just noticed that the number on the face is 1408, is the calibration different on this one?

thanks.

[Tim]

Yes

[Simon776]

They are both for a 3.76:1 final drive, the 1376rpm is for Dunlop C41 tyres.

[65Austin]

thanks simon !!