I have used the search function but can't really find my answer. I am just wanting confirmation of the diff ratio in my car (without pulling it all apart!). I have a '67 Deluxe with a remote change. So far I have been under the belief that it would be the same as a Mini K (3.65) but I would just like to know for sure.

The reason I'm asking is because: I want to know how hard I'm revving it (as it didn't come with a tacho - and I don't really want to spoil the look of the interior by getting one) so if someone who has a standard gearbox/diff could possibly tell me at what speeds in what gear is the redline?

Thanks

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina

Diff ratio for a Deluxe should be a 3.76:1.

what he said...^^^

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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 guys. Do you know what kind of speeds you should be doing at about 6000/6500rpm though (in 1st, 2nd and 3rd)?

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina

The 3.76:1 will give you about 23.7kph per 1000rpm in top gear.
The gear ratios are
1st = 3.628
2nd = 2.172
3rd = 1.412
4th = 1.0

So
1st = 6.532kph per 1000rpm (6000 = 39.1kph)
2nd = 10.91kph per 1000rpm (6000rpm = 65.4kph)
3rd = 16.78kph per 1000rpm (6000rpm = 100.68kph)
4th = 23.7kph per 1000rpm (6000rpm = 142kph)

Download gearcalc It will work it out better than I have just done. (I don't have it on this computer)

Thanks Morris1100, that is exactly what I was after! At least I know how hard I'm revving it now.

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina