| Author |
Message |
    
Suraporn (Bhu)
| | Posted on Friday, November 22, 2002 - 09:59 am: | 
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Please help, my tires are 245-70-16. How much air pressure of front and rear wheel for on road. |
Parrish R. Blackmon (Discoveryfl)
| | Posted on Friday, November 22, 2002 - 11:52 am: |
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42 front
40 rear |
Donald
| | Posted on Sunday, November 24, 2002 - 11:27 am: |
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Nonono. That would be kinda ugly when you turn. 28 psi front and 42 psi rear is more like it for typical on road partial loading. |
Milan (Milan)
| | Posted on Sunday, November 24, 2002 - 11:48 am: |
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What's the tire's load capacity and at waht pressure? How heavy is your vehicle?
If it's stock and the tire load capacities are similar to stock tires, then 26/36 frt/rr should do. If the load capacity is higher on the 245s, you can go less. If you vehicle is heavier than stock, or tire's load capacity is less, you should go more. |
Gabriel Guay (Gearhead)
| | Posted on Sunday, November 24, 2002 - 07:12 pm: |
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I got 60K miles out of my stock tires running 30PSI front and rear. Now I have 245/75/16 GY MT/R and I run these 40PSI front and rear with good results. The higer preasure is mainly becaus these are mud terain tires. Helps them run in the middle and corner more like the stockers did. So far I have 35K miles on these with no cupping and they look like they will go at least 55K.
Also very important to rotate every 10K.
Gabe |
Parrish R. Blackmon (Discoveryfl)
| | Posted on Monday, November 25, 2002 - 08:32 am: |
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28 front and 42 rear is scary and definitely not recommended. I've been running this tire pressure for 2 years without incident. 28 front will actually cause tire wear and sloppy steering. If you think I'm kidding, try it. |
Alan Yim (Alan)
| | Posted on Monday, November 25, 2002 - 10:20 am: |
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Just curious, but why does LR recommend a lower front tire pressure then if handling is scary and there is excessive tire wear? |
muskyman
| | Posted on Monday, November 25, 2002 - 10:31 am: |
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I to have found the factory recommended pressure way to low, with the front that low the tires slide and hydroplain where as at 38fr 40rr the truck holds better cutts through deep water better and whan you do get it sliding it slides in 4 wheel drift as aposed to being confused between tail out and plow.
I have raced autocross and rally in the past and my driving style is more aggresive then most I would rather have a truck that breaks loose earlier and in a predictable manner then one that holds longer and then lets go at just one end.
so my taste may not be yours |
James F. Thompson Jaime (Blueboy)
| | Posted on Monday, November 25, 2002 - 11:07 am: |
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Although in a LWB RRC with 235/85-16 Interco MTs, I've also found having the fronts just slightly less than the rear improves the handling vs the 10psi difference that LR recommended. The front does not plow as much. Have 40frt and 43rear.
Jaime |
Milan (Milan)
| | Posted on Monday, November 25, 2002 - 12:16 pm: |
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Musky, that's funny you should say that. My stock tired disco seems to oversteer on pavement only if I trail the brakes into the corner pretty hard. Otherwise it pushes. On ice and snow it severly understeers and if it lets go in the corner, it's usually all 4 wheels, in a hurry and with the slow steering it can be hard to catch.
I run stock pressure because when I went higher I found the tires hard as rock at 36psi front. Maybe I should experiment more but I think the XPCs are crap and lot of the handling quirks come from the tires. What tires do you run? XPCs? |
Carl_kps
| | Posted on Monday, November 25, 2002 - 12:25 pm: |
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What pressure who you guys suggest for a stock D2 with 245/65 R16 BFG tires. |
muskyman
| | Posted on Monday, November 25, 2002 - 03:17 pm: |
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milan,
i have the xpc's but I have had them siped at about 60k and that made them 100% better they are hard as rocks but still have some tread left so I'll keep running them.
Lots of people hate the xpc's but I like them. sure I could go get a gooey tire on them and make them stick better but you can drive a top heavy vehicle way way faster in 4 wheel drift then you can with now slip angle because with no slip angle the vehicle starts to ride the outside edge and fights roll-over a 4 wheel drift fights spinnout.
why dont desert racers roll more?...4 wheel drift ]
on ice covered roads the siped xpc is also really hard to beat for traction and breaking...I rank it up there with yokohamma 633 snow and hakapeledia snow rally tires i ran on my 325ix. |
Milan (Milan)
| | Posted on Monday, November 25, 2002 - 08:01 pm: |
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Thanks for the info muskyman!
I believe siping would make them better but I doubt they'd do even as well as BFG AT in the snow and on ice, let alone a dedicated snow tires. Mine are just crap. It's not the tread design, it't the rubber compound I'm sure. Mine are also about 50% gone so, still plenty miles left and that's why they're staying on. However, if I had more money, I'd buy new tires in a flash. I bought 32" MT/Rs but they require more $$ to put on so XPCs it is for now. I like them a lot on dry pavement. Anywhere else they suck for my kind of driving but I can understand why some people would like them.
I agree on the 4wheel drift vs no slip angle on top heavy vehicle. But on ice a sudden "4 wheel drift" on a curve and in a heavy vehicle is not fun. I'd rather fight a sudden oversteer then. The trouble I have with the Disco is to tell when it'll let go. Unlike any other vehicle I've driven it seems to hold and hold (so I usually go faster) and then suddenly it goes away too quickly and the slow steering sucks for that (I guess I would still like sports car-like handling on road.) But I don't mind practicing. We should have snow again soon. 
I'm not sure if this is how semis behave, I've only driven one once and it was in a summer time but I figure a heavy vehicle with tons of contact pressure is OK until the traction is overcome. Then you better be quick in correcting and over-correcting can be costly. What do you think? |
Milan (Milan)
| | Posted on Monday, November 25, 2002 - 08:06 pm: |
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P.S.
"why dont desert racers roll more?...4 wheel drift "
Different dynamics. Their cars are so low, wide and light that they will drift before rolling. |
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