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| Mud Tyre Pressure For Sand? http://auszookers.com/forum/viewtopic.php?f=5&t=23814 |
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| Author: | Philbilly [ Wed Jul 13, 2011 8:14 am ] |
| Post subject: | Mud Tyre Pressure For Sand? |
Ok, got some mud tyres comin' and I wanna know what you guys think is a good PSI for them on the beach? My plan was 25 PSI on road, and 15 PSI on sand- sound about right? They tyres at this stage (unless proven other-wise  ) will be GT Radial Adventuro MT's. Reson being as I can get them local for a good price. 
Oh, the car they're going on is a Vitara wagon, so it weighs 1180 kilos or so I think... Cheers, Phil |
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| Author: | atari4x4 [ Wed Jul 13, 2011 8:17 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
what size tyre? my vitara is running 31's & i will go down to a warm tyre pressure of 8-10psi in soft sand & a cold tyre pressure of 28-29psi on the road |
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| Author: | Westie [ Wed Jul 13, 2011 9:00 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
Start at 15psi but if it is very soft 10 would be min. The normal is Road tyres 18-20 PSI and Muds are always 5psi under that. This has served me well over the 25yrs of driving on the beaches. Remember if loaded stay on the Road tyre PSI so if you get stuck you can get out of trouble with that 5psi up your sleeve |
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| Author: | SierraDan [ Wed Jul 13, 2011 9:05 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
I go with 8-10psi in the bush. And about 8-6 on the beach. |
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| Author: | Sutho [ Wed Jul 13, 2011 9:39 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
i drive in on 35psi and drive out on 35psi haha haven been stuck yet, even in 40 degree heat when the sand is fluffiest haha |
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| Author: | monley [ Wed Jul 13, 2011 9:50 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
7psi on the beach for me, |
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| Author: | atari4x4 [ Wed Jul 13, 2011 10:01 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
Sutho wrote: i drive in on 35psi and drive out on 35psi haha haven been stuck yet, even in 40 degree heat when the sand is fluffiest haha
got any dunes like this up your way? 35psi would have you bogged in seconds down here. 
[flash width=480 height=385]http://www.youtube-nocookie.com/v/dCKXFC8quOg.swf[/flash] |
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| Author: | SierraDan [ Wed Jul 13, 2011 10:06 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
atari4x4 wrote: Sutho wrote: i drive in on 35psi and drive out on 35psi haha haven been stuck yet, even in 40 degree heat when the sand is fluffiest haha got any dunes like this up your way? 35psi would have you bogged in seconds down here. Same here. |
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| Author: | alien [ Wed Jul 13, 2011 10:11 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
last time i drove sand on mine with 31s was when i was running cooper STT - i dropped to around 10psi cos i was afraid of rolling a bead... we were getting up to 70km/hr on the sand though. |
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| Author: | Sutho [ Wed Jul 13, 2011 10:43 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
atari4x4 wrote: Sutho wrote: i drive in on 35psi and drive out on 35psi haha haven been stuck yet, even in 40 degree heat when the sand is fluffiest haha got any dunes like this up your way? 35psi would have you bogged in seconds down here. [flash width=480 height=385]http://www.youtube-nocookie.com/v/dCKXFC8quOg.swf[/flash] truu haha nah no dunes where i go, just flat foot sand bashing hahha and a few jumps |
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| Author: | MrRocky [ Wed Jul 13, 2011 10:47 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
8-10psi sand 25-30psi road 40psi on real long trips to aid fuel economy and hill holding ability |
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| Author: | monley [ Wed Jul 13, 2011 10:49 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
MrRocky wrote: 8-10psi sand
25-30psi road 40psi on real long trips to aid fuel economy and hill holding ability 
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| Author: | smiffkid [ Wed Jul 13, 2011 10:50 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
in the sans depends on who im with but usual between 6 to 8, unless i wanna just cut sick and go fast them about 15 but normally causes mass wheel spin so not good for the track or the car on the road around 25 and rocks around 12, thats on 31s |
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| Author: | SuziBlu [ Wed Jul 13, 2011 10:54 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
alien wrote: last time i drove sand on mine with 31s was when i was running cooper STT - i dropped to around 10psi cos i was afraid of rolling a bead... we were getting up to 70km/hr on the sand though.
Claws, sideways @60-70k, airborne, up on two wheels, 5psi. Didn't mean to get her up on two wheels, that was brick shitting time, till I came down, then it was a giant adrenalin rush. |
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| Author: | SuziBlu [ Wed Jul 13, 2011 10:56 am ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
atari4x4 wrote: Sutho wrote: i drive in on 35psi and drive out on 35psi haha haven been stuck yet, even in 40 degree heat when the sand is fluffiest haha got any dunes like this up your way? 35psi would have you bogged in seconds down here. [flash width=480 height=385]http://www.youtube-nocookie.com/v/dCKXFC8quOg.swf[/flash] Common over mate, ill show you sand hills. You will need a GPS to follow me, the wind will have blown my tracks away and you will get lost, aaaaahahahahahahaaaaaa |
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| Author: | Philbilly [ Wed Jul 13, 2011 12:50 pm ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
For Atari 4X4, the tyres will be 235/ 75/ 15. Thanks heaps for the info guys. It seems like I can easily run around on 10 PSI. I don't plan on tackling any dunes (not yet anyway  ), so if 10 psi won't have the tyres pop off the rims driving around sensibly, that will do me.
Cheers all for the info 
Phil |
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| Author: | atari4x4 [ Wed Jul 13, 2011 12:57 pm ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
SuziBlu wrote: atari4x4 wrote: Sutho wrote: i drive in on 35psi and drive out on 35psi haha haven been stuck yet, even in 40 degree heat when the sand is fluffiest haha got any dunes like this up your way? 35psi would have you bogged in seconds down here. Common over mate, ill show you sand hills. You will need a GPS to follow me, the wind will have blown my tracks away and you will get lost, aaaaahahahahahahaaaaaa bwhahahhahahahha, you still believe that you can't be beaten. i'll be there to collect my $1000 at the national meetup next year. 
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| Author: | SuziBlu [ Wed Jul 13, 2011 7:49 pm ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
Lol, dunno, but it will be fun hey. Just got to get me LWB up to scratch, suziblu is dead, so there is a challenge, but its all fun. Looking forward to crakin a few with you mob. |
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| Author: | got_bar_work [ Wed Jul 13, 2011 11:57 pm ] |
| Post subject: | Re: Mud Tyre Pressure For Sand? |
When I first got my vit I tried 12 on Stockton was way to high and had to drop to 9 to get anywhere with out it just bogging down That was in the same size tire as u but it was a at or ht type I would start at 10 and go down from there if u find it's bogging down Only go 1 psi at a time as that's a big % of drop When starting at 10 As long as u don't do any shap turns or hard breaking which is stupid on sand anyway u shouldn't role a bead Make sure u have a compressor with u though |
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