Offroad Tech Discussion pertaining to additions or questions which improve off-road ability, recovery and safety, such as suspension, body lifts, lockers etc
Sponsored by:
Sponsored by:

Air-down...how much in sand?

Old Apr 17, 2005 | 03:54 PM
  #1  
travelinman's Avatar
Thread Starter
Contributing Member
 
Joined: Apr 2004
Posts: 170
Likes: 0
From: Boulder, CO
Question Air-down...how much in sand?

I'm headed to the Sand dunes in Colorado in a few weeks for a camping trip and I've never aired down my tires for sand. Do any of you sand/beach drivers have some advice? I have BFG 265 75 R16's on my 4runner.

Oh, one other thing; after crossing the sand, I'll be back on dirt and rocks to get to the camp site. Should I pump back up or will I okay being aired down?

Thanks!
Reply
Old Apr 17, 2005 | 04:42 PM
  #2  
calrockx's Avatar
Contributing Member
 
Joined: Sep 2002
Posts: 4,749
Likes: 0
From: Santa Clarita, California
when i wheel as pismo dunes i usually air down to 12-15psi. when driving in town during the trip i'm usually lazy and only air back up to ~20psi.

even airing down a little bit more in sand can make a big difference. the lowest i've gone is 5psi, when i was towing someone uphill in some soft sand.
Reply
Old Apr 17, 2005 | 05:46 PM
  #3  
PirateFins's Avatar
Registered User
 
Joined: Jan 2003
Posts: 1,958
Likes: 1
From: Smithsburg, Maryland
I normally air down to 20psi when driving in the Sand in the Outer Banks. When I'm off I just take it easy until I need to air back up.
Reply
Old Apr 17, 2005 | 08:19 PM
  #4  
SoCal4Running's Avatar
Registered User
 
Joined: Mar 2004
Posts: 1,421
Likes: 2
From: Oceanside, CA.
I usually run 8 to 10 psi in sand. With your trip back to camp you could just take it easy over the rocks and you shouldnt have a problem.

I read a test somewhere that proved that if you decrese the pressure by half you will go twice as far up a sand hill, this was running street pressure and then running half of that. I would air down to 15psi maximum and go lower from there depending on your rigs weight ect.
Reply
Old Apr 17, 2005 | 08:42 PM
  #5  
jimbo74's Avatar
Banned
 
Joined: Jan 2004
Posts: 6,590
Likes: 0
From: Nor*Cal
i went with 15 psi in my explorer with 31s....

this did great in the sand however a couple times i blew the beads....

when i ran 20 psi, i never lsot a bead and to me, it felt like the ride was the same

jsut a note, in my yota, i run 20 psi all the time....
Reply
Old Apr 17, 2005 | 09:02 PM
  #6  
4Crawler's Avatar
Contributing Member
20 Year Member
iTrader: (3)
 
Joined: Jun 2002
Posts: 10,822
Likes: 34
From: SF Bay Area, CA
I have some tips and links to airing down for sand driving on my web page:

http://www.4crawler.com/4x4/PismoBea...#DrivingInSand

Specifically, see the link to "Tire Pressure for 4 Wheeling". Excellent technique outlined there for determ ining your vehicle's sand pressure. At Pismo, I started off at 10 psi and ended up around 2 psi (33x15.50 tires).

Last edited by 4Crawler; Apr 17, 2005 at 09:04 PM.
Reply
Old Apr 17, 2005 | 09:09 PM
  #7  
travelinman's Avatar
Thread Starter
Contributing Member
 
Joined: Apr 2004
Posts: 170
Likes: 0
From: Boulder, CO
You guys rock!!!!

Thanks for the info. I'm not concerned now...I'll go at about 10-15psi and see how it goes. I just didn't want to blow the bead out in the middle of nowhere...if you know what I mean...

Thanks again...
Reply
Old Apr 17, 2005 | 09:39 PM
  #8  
jimbo74's Avatar
Banned
 
Joined: Jan 2004
Posts: 6,590
Likes: 0
From: Nor*Cal
15 was fine on my explorer throughout the day, but i popped the beads several times when i went to do donuts in the sand wash.....
Reply
Old Apr 17, 2005 | 09:48 PM
  #9  
Darren's Avatar
Contributing Member
 
Joined: Jun 2002
Posts: 1,031
Likes: 0
You definitely don't need to air down for the Medano road unless you want a softer ride for the other sections. However, for what is open this time of year (about a mile into the Preserve), it really isn't worth the time. You really don't need 4WD, either.

Incidentally, I spent the weekend down there. The creek is flowing real nice right now.

Last edited by Darren; Apr 17, 2005 at 09:51 PM.
Reply
Old Apr 18, 2005 | 09:55 AM
  #10  
Flamedx4's Avatar
Registered User
 
Joined: May 2004
Posts: 3,291
Likes: 0
From: 100 miles offshore as much as possible, & Springfield Oregon USA
Originally Posted by jimabena74
15 was fine on my explorer throughout the day, but i popped the beads several times when i went to do donuts in the sand wash.....
That explains the popped beads then...

All of us always ran 8-10 on the sand and never had a problem, that's 20 rigs over a 20 year span. Even doing donuts actually.... The difference between 15+ and 10 or less is astounding.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ashamsuddin
General Vehicle Related Topics (Non Year Related)
17
Jul 22, 2024 03:59 AM
kawazx636
The Classifieds GraveYard
34
Oct 6, 2021 03:03 PM
MudDr
Newbie Tech Section
5
Sep 12, 2015 01:47 AM
JookUpVandetti
86-95 Trucks & 4Runners
6
Sep 11, 2015 09:41 AM
Dakotaneu
86-95 Trucks & 4Runners
4
Aug 15, 2015 07:24 AM


Thread Tools
Search this Thread

All times are GMT -8. The time now is 11:24 AM.