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Old 05-14-2012, 08:29 PM   #1
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Air Down Pressure for riding on sand ?

Hi - Just got my 2012 E250 with Quigley 4X4 and want to try riding it on the beach. My LT245/70R-17 Goodyear Wrangler normally inflate to 80psi and looking for recommendation on pressure to air down to ride on loose to hard sand along the beach. My rig is pretty heavy - 9,500# loaded.

Thanks
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Old 05-14-2012, 08:38 PM   #2
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Re: Air Down Pressure for riding on sand ?

On sand you can air way down. Maybe 20-25psi.

For reference,I air down to 40 off road on rocks that can attack sidewalls. The real question is can you air back up before you drive at speed on roads?

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Old 05-15-2012, 09:42 AM   #3
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Air Down Pressure for riding on sand ?

I stay around 30 psi


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Old 05-17-2012, 06:24 PM   #4
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Re: Air Down Pressure for riding on sand ?

Donít go below 25 or 30psi. The guys that use lower psi usually have bead locks too. Heavy vehicles can easily pop the tire off the rim at low psi.

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Old 05-17-2012, 09:59 PM   #5
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Re: Air Down Pressure for riding on sand ?

Thx for the advice!
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Old 05-18-2012, 10:44 AM   #6
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Re: Air Down Pressure for riding on sand ?

Regardless of tire pressure, be very careful about driving below the high tide line.

About once a year, someone will drive out on Clam Beach here at low tide, hit a soft spot and stick it up to the axles.
By the time they get back with a heavy duty recovery vehicle, the tide has come in and they are stuck with a huge towing bill to drag what is now 3 tons of scrap iron off the beach.
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Old 05-18-2012, 12:25 PM   #7
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Re: Air Down Pressure for riding on sand ?

I run about 10 psi in sand.
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Old 05-18-2012, 03:37 PM   #8
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Re: Air Down Pressure for riding on sand ?

Quote:
Originally Posted by carringb
I run about 10 psi in sand.
In sand I have run 10 to 15 psi and 25 psi for 100s of miles on dirt roads. I look more at the tire profile when deflated than the tire gauge.

Once in the Sand Dunes at Glamis, I buried my SuperDuty to the axles pulling in my Toy Hauler. I deflated to very low pressure, 10 to 12 psi, and drove it right out. I then drove it 50 or more miles on I8 at 55 MPH to El Centro where I filled the tires. They showed no extra heat and had no damage.
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Old 05-18-2012, 05:35 PM   #9
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Re: Air Down Pressure for riding on sand ?

WOW! What brand tires?
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Old 05-18-2012, 05:50 PM   #10
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Re: Air Down Pressure for riding on sand ?

Yup. I've also driven on the highway, at speed, at 10 psi. Rides like a Caddy. That was when I had Open Country A/Ts. I haven't had the M55s in deep dry sand yet, so I've never let air out. I have no doubt they would hold up even better, since the A/Ts are still really just a highway tire.
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