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Old 05-08-2005, 13:01   #1 (permalink)
'T'
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Disco 2 rpm /mph

Just had my transfer box ratios changed in my Defender with some higher
ratio gears from Ashcroft transmissions which:

"raise your transfer case gearing by 15%, by replacing the gearing in the
exising 1.410 ratio transfer box with new geniune Q (quiet) gears, as used
in the Disco II."

Can anybody tell me how many rpm I should be doing in 5th at 70mph? (No rev
counter yet...)

Thanks


--
T

Defender XS90


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Old 05-08-2005, 15:01   #2 (permalink)
Dave Liquorice
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Re: Disco 2 rpm /mph

On Sun, 8 May 2005 19:23:44 +0000 (UTC), T wrote:

> Can anybody tell me how many rpm I should be doing in 5th at 70mph?


Not 100% sure in which vechicle you are refering but a Disco II with,
AFAIK standard gearing and tyre diameter, (tyres are 255/55R18) does
2250rpm (give or take a tad) for 60mph or about 2600 for 70 but I
rarely go that fast as it seems to be straining a bit. Much happier
hitting the at about 62mph or 2300ish rpm in 5th.

All as indicated by the instrumentation of unknown accuracy...

--
Cheers new5pam@howhill.com
Dave. pam is missing e-mail



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