Safe pressure to let tyres down to
Submitted: Friday, Oct 10, 2003 at 20:08
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Zapper
Hi All
Just wondering if someone can tell me roughly what minimum pressure tyres can be let down to when driving in deep sand without risking damage to the tyres, or does it vary with different types of tyres??
Reply By: DODO(bendigo) - Friday, Oct 10, 2003 at 20:19
Friday, Oct 10, 2003 at 20:19
gday zapper.
with out bead locks i wouldnt go under 10-12 psi if your planing on leaving them low for a lond drive but for short distance 6-8psiRaphus cucullatus
AnswerID:
33377
Reply By: Truckster (Vic) - Friday, Oct 10, 2003 at 20:25
Friday, Oct 10, 2003 at 20:25
With or without tubes.
With Tubes, 8-10 is kewl,
without probably 10-15, Im going to try that on the weekend, around 10psi
AnswerID:
33380
Follow Up By: Zapper - Friday, Oct 10, 2003 at 20:28
Friday, Oct 10, 2003 at 20:28
tubeless. 31x10.5 15's
FollowupID:
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Follow Up By: DODO(bendigo) - Friday, Oct 10, 2003 at 21:16
Friday, Oct 10, 2003 at 21:16
how low can you go truckster.
ill try 6 psi in the snowRaphus cucullatus
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Follow Up By: Truckster (Vic) - Friday, Oct 10, 2003 at 21:18
Friday, Oct 10, 2003 at 21:18
Bringing your compressor?
Theres no servos around later in the day on sunday
FollowupID:
23950
Reply By: ross - Friday, Oct 10, 2003 at 21:17
Friday, Oct 10, 2003 at 21:17
I have tyres like that on my landcruiser which weighs 1850 kg and I wouldnt go under 15 psi normally.But if I was bogged on a tidal flat in an area with 5metre tides I would let them down to 5 psi or more if I had to.How far you let them down depends on the strength of the tyre wall .A light 4x4 with stiff sidewalls may require 10 psi minimum.It something you decide on based on experience and there are no hard and fast rules.
On long offroad trips,having tyres with a low inflation will cause them to over heat in the sand and cause the ply to separate.It may not be apparant till your back on the bituman at high speed.
AnswerID:
33387
Reply By: Martyn (WA) - Saturday, Oct 11, 2003 at 10:03
Saturday, Oct 11, 2003 at 10:03
Zapper,
A good answer from
Ross, as he mentioned I put this down to experience with your own vehicle, initially follow some guide lines as mentioned above by others but as I've found out it very much comes down to the tyres and the weight of your vehicle. My opinion.Keep the shiny side up
AnswerID:
33416
Reply By: Roly - Saturday, Oct 11, 2003 at 18:57
Saturday, Oct 11, 2003 at 18:57
buy seconds airs and then you can go as low as you want and never have a tyre come off the bead :D
100% street legal too
AnswerID:
33435
Reply By: Phil G - Sunday, Oct 12, 2003 at 10:45
Sunday, Oct 12, 2003 at 10:45
As others have mentioned, you can go very low, if you drive slowly and don't turn sharply. Main think is not to turn sharply or fast, otherwise you'll roll a tyre off a front rim. If you do roll off a tyre, we usually find that after cleaning out the sand, most tyres can be reinflated with a good pump, especially if only the outer bead has come off.
AnswerID:
33472
Reply By: bruce.h (WA) - Monday, Oct 13, 2003 at 13:17
Monday, Oct 13, 2003 at 13:17
Zapper
the answers above are a good guide,the lowest i have gone is to the point of not registering on the gauge But travelled only a few 100 m the reinflated,the safe answer is as low as you have to go to maintain or gain momentom then reinflate, but between 10 - 20 psi is usualy safe. also remember the lower the preasure the lowwer the speed
regards Bruce
AnswerID:
33587