Suggested PSI for driving on sand? - Defender Source
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  #1  
Old May 28th, 2011, 04:49 PM
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dmitry
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Suggested PSI for driving on sand?

what would you lower PSI to for driving on sand?
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  #2  
Old May 28th, 2011, 05:58 PM
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Tony Sims
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Tire size? What type of wheels? Tube or tubeless?
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  #3  
Old May 28th, 2011, 06:07 PM
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John B.
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The lower the better. Start at 15 psi and lower when needed. The lower you go the more careful you need to be when cornering and keeping the speed down. Carry an air compressor to reinflate.
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Old May 29th, 2011, 05:47 PM
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Low does it. Lengthens the foot print. Make a huge difference.
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Old May 30th, 2011, 07:41 AM
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On Sand you want to float on top of the sand as compared to cutting through it. If you notice on the sand buggies they have a "high Floatation" tire that is really wide with a flat footprint. As the others have said by lowering your air pressure you will increase the size of your tires contact area. Decreasing the pressure to the low teens shouldn't be a problem no matter what your tire/wheel set up you have. If you go into the single digits you may risk getting a flat, bead popping off the rim or sand getting into the bead area. Usually it is easier to follow the ruts created by others as long as they are not too deep for your rig.
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Old May 31st, 2011, 10:04 AM
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Scott Y
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I have always dropped my tire pressure down to 12-15 psi for soft sand. I have done plenty of soft sand driving on Nantucket with my 95 SW (since new) and have never had a problem or gotten stuck. One time on some really soft sand, the axles were touching the sand and the 90 easily drove out of it in locked center/low range. Do yourself a favor and get a couple of the tire deflators that you can screw on to the valve stem and they deflate down to about 15 psi, or else you will stand by each tire forever pushing the valve in to deflate them
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Old May 31st, 2011, 02:35 PM
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Danny
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For tires ~10-11" wide, I always used 12psi for soft sand.
If wider than 12" you can usually go up to ~15psi.
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