Subtopic	Posts		Updated
	Body lifting a '97 Discovery tdi	5		06/08 07:56am

By Eric N on Friday, June 01, 2001 - 11:47 am: Edit

I have just put these tires on my stock rims 16x7 and it looks like the side walls are really close to the ground where the tread stops.. I'm running 28psi front and 36psi rear as the 26/34 just looked too flat... Any one else running these tires and if so what air pressure are you using and have you had any side wall issues?

By Bill B on Friday, June 01, 2001 - 03:42 pm: Edit

A friend has these on his D1 (for about 5K now) and he found 40-45 psi all around best on the highway. Can't speak from personal experience as I have 245/75/16.

By Eric N (Grnrvr) on Friday, June 01, 2001 - 04:57 pm: Edit

Thanks, I haven't done a lift yet. Waiting another year for that. I will then get some bigger tires. I bought these as the XPCs were not very good offroad and I'm hoping (should find out next weekend) that these will be better. Maybe I'll bump up the pressure to 30-32 front and 38-40 rear and see how that feels/looks.. I read on another post that discos like the 8 psi difference between front and rear and I would have to agree with that. Same psi all around just doesn't feel right to me when driving. Guess I'll just have to take out the compressor and drive around on different combos and see what feels/looks best. Since I'm replacing the tires next year I'm not too worried about wear. I just don't want a blow out or anything. That's what I'm afraid of.

By Scott Tschantz on Saturday, June 02, 2001 - 03:16 am: Edit

Eric

I have those tires in 245/75-16
and run them 32 front 40 rear
it seems to work real well for me
They will be a great improvement over the xpc

By pk on Monday, June 04, 2001 - 05:37 pm: Edit

You should raise the pressure. That ain't no Michellen you got there!

pk

By Jeff Bieler (Mrbieler) on Monday, June 04, 2001 - 07:50 pm: Edit

We're running R/T's in 215/85 R16. Front and rear are at 38PSI. I played with different pressures, did the chalk line test, etc and this just feels good and wear looks good at this point. Once you leave stock tires and sizes, the LR recommended PSI is out the window.

By Eric N (Grnrvr) on Monday, June 04, 2001 - 08:01 pm: Edit

I been messing around with different pressures this past weekend and it seems that 30 front 38 rear feels pretty good to me. I don't know about what it will do as far as wear goes though.. I guess I could go get some chalk this weekend and see. Mrbieler 215/85 R16 are those on stock rims or steel ones?

By Jeff Bieler (Mrbieler) on Monday, June 04, 2001 - 08:20 pm: Edit

Stock alloys. With the narrow width, I loose a bit of bite on the rocks, but I really like how it does in mud and sand.

By Jeff Bieler (Mrbieler) on Monday, June 04, 2001 - 08:35 pm: Edit

Oh, and those tires went on after the OME shocks and springs. I did have to cut a small bit of the inside rear fender. It just caught with the tire fully stuffed. Enough to vibrate the metal and would have caused the metal to split and chip paint. The trimming is not visible unless you poke your head in the wheel well.

By Eric N (Grnrvr) on Tuesday, June 05, 2001 - 12:06 am: Edit

I don't think that mine rub. I haven't really tested that though. Do your tires look a little strange on the rims to you? Mine look like there is more rim width then tread to me. It looks a little weird. Guess I'm just going to have to get used to it. Just looks like it would be easy to mess up the side wall on these. What's a good way to get your tires stuffed so that I can see if they rub? I don't have a floor jack just the bottle jack that came with the truck. Any other good way aside from the big rock on the trail technic.

By Blue Gill (Bluegill) on Tuesday, June 05, 2001 - 11:37 am: Edit

to stuff tires, go behind your local grocery store and run one side of your rig up one side of the loading bay ramp for the store. Just be careful not to fall off.

Or run one front wheel up the hood of a Miata

Also, be mindful of your pressure on the road, as PK mentioned - too little is bad, as I'm sure you know (e.g. Firestone fiasco). Bill B. and Scott T. have 245/75's which are most likely a stronger tire than your 225/75 (10 ply vs. 8 ply), so they have a little more leeway when it comes to playing with pressure...

my $0.02

By Eric N (Grnrvr) on Tuesday, June 05, 2001 - 02:43 pm: Edit

Would it be better to have too much pressure then too little?

By Blue Gill (Bluegill) on Tuesday, June 05, 2001 - 02:53 pm: Edit

I wouldn't go over the max pressure specs on the sidewall of the tires - inflate to max pressure (while tires are cold), and then adjust downward from there - try max in the rear tires and 8-10psi less in the front.

By Jeff Bieler (Mrbieler) on Tuesday, June 05, 2001 - 03:19 pm: Edit

Higher (but not higher then tire spec) is safer on the road. Less heat buildup at the leading and trailing edge of the tire where it contacts the pavement and less heat and sidewall flex. The ride can be stiffer at higher PSI and the tire is more susceptible to impact damage, but it is safer overall to run higher, not lower, pressures.

As the above post states, start high and work down to a level you're happy with.

By Eric N (Grnrvr) on Tuesday, June 05, 2001 - 04:22 pm: Edit

60psi is max on the tire... Maybe I'll bump them up to 42 front and 50 rear and see if that feels OK... I have a feeling that it is going to feel like I'm driving on wheels made out of stone though.. I'll get some chalk on the way home and see if that high of a pressure is going to wear out the center of the tire really badly. Can't wait to get new tires next year and go through the same thing.... Oh well, at least they will be a size that most people are running..

By Blue Gill (Bluegill) on Tuesday, June 05, 2001 - 04:30 pm: Edit

42front/50rear is what I'm running on 245/75's - works well for me...

By MA on Friday, June 08, 2001 - 09:05 am: Edit

Eric, do you have a pic of your Disco with 225/75-16 Dunlop Radial Rover RT tires, I am also considering this set-up with my stock suspension. Please e-mail the pic to ma31185@metallica.com

By Eric N (Grnrvr) on Friday, June 08, 2001 - 09:42 am: Edit

I just put them on last week so no pictures yet. Will try to get some this weekend while I'm taking my brakes apart to put anti-squeak on them.

By MA on Friday, June 08, 2001 - 10:25 am: Edit

oh that's ok...I'm not in a rush. Is that tire size wider then the stock tires(235/70-16)?

By Eric N (Grnrvr) on Friday, June 08, 2001 - 10:32 am: Edit

No, it is 10mm smaller in tread width and about a 1/2 inch taller overall (1/4 inch axle)... I think that they call them 29.5's as where the stock ones would be 29's.