Tyre pressure how low to go.

[dawsey]

As being new to the bigger 4x4 only had suzukis and still do. I'm heading off for a week or so fishing with the 110 and will be doing a lot of sand driving..I have no problem dropping the tyres down to 8 or 10 lb on the sierra in the heavy stuff it has 235/75. But the defender is a different story has stock 235/85 contis how low can you go, the L/R is a lot heavier than a 900 kl zook..thanks

[pushrod]

i`ve gone as low as 12-14 psi in soft sand .. depends a bit how heavily loaded
your 110 wil be ..

[beefy]

8psi is not uncommon where I go with my fender. you just have to be gentle.

[Loubrey]

dawsey,

On sand I go down to 1 Bar (14 Psi) in the 90 wearing the General Grabbers. They have pretty stiff side walls but they have a nice long footprint per wheel. I was very impressed by their sand performance to be honest and they are marginally better than the KM2's which are inclined to dig a bit.

As pushrod said unless you're carrying the kitchen sink and all, the 110 will breeze through it at 12 to 14 Psi.

Just remember the 110 is just a little less forgiving on picking the right line and maintaining momentum in the soft stuff...:D

Enjoy the trip!

Cheers,

Lou

[spudboy]

Down at 1 bar (14PSI) and below you have to pretty careful not get the tyre off the rim. Any quick left/right steering ,or big ridges, and the tyre rolls off the rim. I had this in some very soft SA sandhills, and my little compressor had great trouble getting the tyre to inflate again. Couldn't get a good seal so the air just kept escaping. Ended up putting a ratchet strap around it to keep the edges out on the rim.....

Will be interested to hear how you think a Defender compares to a Suzi in the sand!

[goingbush]

as Spudboy said, keep above 100kpa, ( that is atmospheric pressure = pressure inside tyre), you can go lower with tubed tyres, but then risk sand getting in & a future leak. ( But easy enough to pop tubeless tyres back on with a can of butane )

[dawsey]

Thanks for the info..thought Id pretty right keeping it around 15 and 20..Heading off at the end of the week, 2 weeks off going north, nowhere in particular will be the first time Ive taken it for a long run..Looking forward to comparing it on the beach to the suzuki..will let you know how she goes.Taken it through the local tracks just outa Perth. Handles the rocks and ruts a hell of a lot better than my sierra a lot less tippy .more stable and I love those coil springs.

[RVR110]

as Spudboy said, keep above 100kpa, ( that is atmospheric pressure = pressure inside tyre)

No. The pressure reading on your guage is over and above ambient pressure.
If the pressure inside the tyre really was equal to the pressure outside your car then your pressure guage would be reading approximately 101.3 KPa before you get it anywhere near the tyre valve.

[Jode]

No. The pressure reading on your guage is over and above ambient pressure.
If the pressure inside the tyre really was equal to the pressure outside your car then your pressure guage would be reading approximately 101.3 KPa before you get it anywhere near the tyre valve.
Depending of course upon the height above sea level of where you're measuring pressure....

[jimr1]

Hi not sure whether the sand in WA. is that much different to the sand in SA .talking to the Ranger who drives the beaches every day , he said he runs 15/17 psi and doesn't have to many problems , however even he admits to geting stuck now and again . Carry some recovery gear ,plus a shovel !..good luck ..:)

[460cixy]

What about tubed tyres how low is every one going? I don't go below about 18psi and all has been good so far

[RVR110]

Depending of course upon the height above sea level of where you're measuring pressure....

I know someone would say something like that and hence used the word approximately. Also, as any Meteorologist will tell you, pressure at a given location and specified elevation also varies.
:)

[OffTrack]

FWIW Tom Sheppard's The Land Rover Experience book (from 1992) lists a range of suggested pressures for the 110 at minimum and maximum loadings.

"Emergency floatation" (max speed: 20kph):
Kerb: F 16psi, R 18psi
GVM: F 16psi, R 29psi

Tracks and Rough Roads (max speed: 65kph):
Kerb: F 20psi, R 29psi
GVM: F 22psi, R 36psi

Hard Road (to max speed):
Kerb: F 26psi, R 29psi
GVM: F 28psi, R 48psi

Not sure how relevant these are...

cheers
Paul

[jimr1]

I know someone would say something like that and hence used the word approximately. Also, as any Meteorologist will tell you, pressure at a given location and specified elevation also varies.
:)
:D:DHi I thought most beaches in OZ.were at sea level.:D:D..

[Westie]

What about tubed tyres how low is every one going? I don't go below about 18psi and all has been good so far

I've gone down to 10 or 12 (with tubes) to drive out of a soft spot, but re-inflate to 16/20 F/R immediately I'm out.

In the desert the sand seems firmer in the morning when it's cooler, but might just be my imagination?

[holsd90]

I've got a 2012 90 with the orignal Continentals and automatically set mine via Stauns to 12psi for the sand and 18psi for mud/track work. I've found that tends to suit the 90. This worked well while out with another make on the same tyres that ran 20psi on sand around Esperance. Main thing is the lower you go the more care you take around corners and keep the speed lower.