Vehicle & Technical > Series Land Rovers
tyres
muddy_90:
i ve got 31x10.50x15 i was going to put 24" simex on it but i need to cut the archs big or fitted defender arches with the eye brows ons.
This topic came up on another forumhttp://forums.lr4x4.com/index.php?showtopic=177
Rich_P:
--- Quote from: "CanIBeFrank" ---(Firstly appologies for post hyjacking, although its on the same subject...)
Just before xmas I purchase and I'm currently rebuilding an 88 Series III Diesel (rolling chasis at the mo), it has Range Rover diffs, goes very well on the flat or downhill, about 60. But was pants on any hill, down to 3rd on any moderate upward slope.
It curently has 750 R16's fitted, it's in need of new tyres, so would fitting 235/70R16 make any differance to the poor uphill peformance?
--- End quote ---
Yes, fitting 235/70 would make a differance. The reason is because 235/70 has a smaller radius than 235/85 (similar to 7.50). So it takes less to turn the smaller tyre round, but on the downside, your ride height will be lower and probably close to 205/80.
You will also need to recalibrate your speedo for the change in the tyre size.
(I'm hopeless today at remembering all the technical terms. :roll: )
EDIT: Forgot to mention. If you have Range Rover diffs fitted, that alone would be causing a lot of trouble. The 2.25 Diesel should pull fine on 7.50s or 235/85 uphill on standard gearing.
CanIBeFrank:
Thanks for the advice, smaller wheels it is then as I aim to do most of my driving on road or green lane/farm tracks, I don't think the little lose in ground clearance will be a major issue. (I'll keep the original wheels and tyres)
ps got the bulkhead in and the engine running so far this weekend, things are looking up :)
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