How much to deflate for Sand / Rocks?

[sn1987]

What pressure would you use for deep sand and what for rocks and sharp stones without risking too much of getting the tire lose on wheel? I drive now 255/70/16" Thanks!

[hilltoppersx]

i say 17-20psi depending how soft the sand is

[jayv]

I have been driving on sand and rocks for 30 years. on sand 15 PSI. on rocks, depends on your tire wheel set up. if you have a c rated tire i would stay at 20 pounds no lower becasue of the weight of the LR. if you run a E tire you could go as low as 15, if you run a E tire with bead locks you could go as low 5 psi depending on the level of rocks you are running.

the point is, sand is easy, 15 PSI, rocks takes more thought.

[sn1987]

thank You, it helps!

[Disco Mike]

Originally Posted by jayv

I have been driving on sand and rocks for 30 years. on sand 15 PSI. on rocks, depends on your tire wheel set up. if you have a c rated tire i would stay at 20 pounds no lower becasue of the weight of the LR. if you run a E tire you could go as low as 15, if you run a E tire with bead locks you could go as low 5 psi depending on the level of rocks you are running.

the point is, sand is easy, 15 PSI, rocks takes more thought.

Jay, I noticed that you mentioned a "C" rated tire and wasn't sure if that is what you are running. if so, for what it is worth, because of the Rovers weight and top heavyness, a "C" rated tire can't not be run safely. "D" and "E" rated tire are required for the stronger side wall.

As for what I run when wheeling, no mater if it is on sand or extreme rocks, I run 18#'s with 8" wide factory wheels and 265/75/16's, anything less then that and I tend to roll my left front tire bead.

[jayv]

Originally Posted by Disco Mike

Jay, I noticed that you mentioned a "C" rated tire and wasn't sure if that is what you are running. if so, for what it is worth, because of the Rovers weight and top heavyness, a "C" rated tire can't not be run safely. "D" and "E" rated tire are required for the stronger side wall.

As for what I run when wheeling, no mater if it is on sand or extreme rocks, I run 18#'s with 8" wide factory wheels and 265/75/16's, anything less then that and I tend to roll my left front tire bead.

Even on an E rated tire, you roll the bead? wow. i wouldnt have expected that.

I agree wiyth you 100% yuor 18 PSI is a nice one to run, i think once you get into the 35" tire range though you may find the volume of air at 18 is a little to stiff. but no matter.

yes, a c rated tire would not be a good idea on a disco, for that matter just FYI a service load index of 109 (2271) or D rated and greater should be used on the disco. imo.

J

[sn1987]

i have cooper discoverer S/T, how are they rated?

[Disco Mike]

Not sure what rating you are looking for. Most information is stamped on the sidewall of the tire. If you are looking for what air pressure to run, that will depend on your tire size, what size are your tires?