Tyre pressure?

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GREENHORN

GREENHORN

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On my Disco my road standard 235 / 70, say the tyre pressure should be a maximum of 44 psi, so it stands to reason that my off roads (also 235 / 70) should be too right? They are on the front and standard on the back...Dont ask!;)
 
why are you fitting two completely different tread patterns on a permanent 4wd vehicle. Either you need muds beause you take it off road or you need road biased tyre because it spends most of it's life on tarmac, but having muds and road tyres makes no sense whatsoever :confused:
 
I think your worrying too much about nothing, i just put 35psi in all round as its easy to remember. I cant see how having muds different pressure to road tyres would make any difference.

Only time i push them up a bit is if i know i have a full car and towing.
 
fergusontom said:
I think your worrying too much about nothing, i just put 35psi in all round as its easy to remember. I cant see how having muds different pressure to road tyres would make any difference.

Only time i push them up a bit is if i know i have a full car and towing.
Click to expand...

When running roads at 44psi I recommended dropping MTs down to 36. Not saying it's perfect just what I've put mine at! Muds at 44psi be like driving on washboards all the time.
 
I did say dont ask! lol Ive been unlucky with tyres and have two set but due to slashing of tyres slow punctures etc...Im down to 3 functional muds and a full set of road tyres but when I have all road tyres it pulls drastically to the left!? If I use the muds it doesnt but I dont have enough to have all muds so I have roads on the back and two muds on the front...drives fine now but they are all a little low and need topping up and wanted to make sure I wasnt throwing it off balance by having too drastic a difference in psi per tyre...blah blah blah anyway, thanks for the advice peeps
 
Well, if it won't drive in a straight line there may be other problems that could do with looking at. Tracking, joints in the steering system, steering swivel bearings, wheel bearings, maybe one of the brakes is binding or not coming on at all. Please don't leave it like that!
 
I run my BFG AT's at 'road' pressures, something like 32 - 38 all round, depends on whether I'm towing or not.

I run my Extreme tyres at about 20 - 25 all round.

The AT's track straight and true, the extremes don't, they're softer, higher walls and 'wobble' more ... I can't see how a set of road tyres on one end and a set of Muds on the other can work properly together, no matter what the pressure! The main reason Muds are recommended lower pressures is mostly 'cos they're for mostly off-road use and are a big compromise when on-road. Mixing and matching cannot, in any way, be any good for road safety.

I'd suggest get full sets of either and work from there, you're fighting to make different systems work together when they never will properly.
 
By as 'eck you lot don't half run very high tyre pressures. :)

Do the chalk test and see what the result is.

I run my Defender 110 SW at 30 front 34 rear fully laden to MGW. Taking the tyres off at 40,000 od miles the tread depth was less than 0.5 of a mm across the tread of all the tyres.

I used to run my Range ROver In Vogue at 28 all round.

mike
 
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