J

JMJH

Member
Hi,

Still getting used to my new Disco 1 and have a qu regarding tyre pressures that people tend to run. I have Pirelli Scorpian 235/70/16 and have suspension raised a couple of inches and am finding things feel a little soft. Any views on the right pressure for noirmal road use? There seemed to be quite a range of views when I did a seach, but that wasn't based on my set-up.

TIA.
 
JMJH said:
Hi,

Still getting used to my new Disco 1 and have a qu regarding tyre pressures that people tend to run. I have Pirelli Scorpian 235/70/16 and have suspension raised a couple of inches and am finding things feel a little soft. Any views on the right pressure for noirmal road use? There seemed to be quite a range of views when I did a seach, but that wasn't based on my set-up.

TIA.
Click to expand...

What do you mean by feels a little soft?


Its a disco with a lift what do you expect it to be like.

It aint a sports car.
 
Always good to check your tyre pressures ,
After pay and play week or so ago i checked mine a petrol station on way home rear passengers was at 55psi , the front drives was at 40psi
the front passengers was i thing about 35psi
and the rear drivers was 20something
Was wondering why it felt weird on corners lol
 
JMJH said:
Hi,

Still getting used to my new Disco 1 and have a qu regarding tyre pressures that people tend to run. I have Pirelli Scorpian 235/70/16 and have suspension raised a couple of inches and am finding things feel a little soft. Any views on the right pressure for noirmal road use? There seemed to be quite a range of views when I did a seach, but that wasn't based on my set-up.

TIA.
Click to expand...

Well what I would suggest is that you try a range of tyre pressures to see if that is what is giving you this sensation of softness.

I usually run ours on 33 at the front and 36 at the back unless I'm towing then I might go as high as 42 at the rear depending on the towed weight.

Dave
 
I've no idea, I got excited in work and posted, ill re read the original post and review my comment from the naughty step
 
retrocarman said:
I put 45 in mine all round, but there off road tyres not road tyres
Click to expand...

TBH that seems inappropriately high, for all sorts of reasons. Why would you run them so high?

Normally when off-road and potentially in mud you need really low pressures to get a better footprint.


So I just don't get why you would wish to run them so high in ANY conditions - unless you plan to do some autobahn cruising at 120mph+
 
retrocarman said:
I've no idea, I got excited in work and posted, ill re read the original post and review my comment from the naughty step
Click to expand...

Nothing wrong with going off track within a thread, but, if you had told us why u use that pressure off road... is it because of the tyres spec, what the manufacture recommends, the conditions in your off road driving??? then someone reading this thread may have found your "snippetiness" being worthwhile :blabla: :D
 
I ran them at 36 and they had excessive bulge and the tread seemed to wear out quickly. Through progressive inflations I settled on 45, minimal bulging and good even wear. Hold the road well too. But really each tyre manufacturer has there own approved pressure.
 
We seem to be revisiting tyre pressures almost weekly.

Recommended pressures for normal road tyres under normal conditions:
Disco 1 (235/70R16): Front - 27 Rear - 38
Disco 1 (255/65R16): Front - 28 Rear - 38
Disco 2 (all sizes): Front - 30 Rear - 38

Yes, tyre manufacturers do state a recommended range of pressures for their tyres (very rarely do they quote an actual running pressure) and if the vehicle manufacturer's recommendations fall outside of the tyre manufacturer's range of pressures then you're on the wrong tyres.

Obviously tyre pressures might vary a small amount from the recommended pressures above when used under differing conditions; usually lower for off-road and mud, higher for regular high speed motorway driving.

Some bulging at the bottom is a normal condition, especially for radial tyres, not quite so much for cross-ply tyres.

If you experience uneven or excessive tyre wear at the recommended pressures then I would advise a tracking check or even a chassis geometry check.
 
Last edited:
Thanks all - quite a range of opinion it seems :)

I'll start from 30 and 36 and take it (probably up) from there.

Never heard of the chalk test before but I can see the logic in it.

Re the comment of what do I mean by soft, it's a fair point and maybe part of it is that I just need to get used to what a Disco 1 with a lift is going to feel like, but it still feels like it's rolling around a bit too much in the tyres and I'm certain it's running lower pressures than most on here seem to be using.
 
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