Forest road tire pressure? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-16-2013, 02:48 PM   #1
Jeeper
 
Join Date: Jul 2012
Posts: 521
Forest road tire pressure?

I've done a lot of forest roads, mostly exploring, so i never aired down the stock duellers. But today I want to. I'm at the trail head, got them down to 24.5 PSI, but they still feel guide hard. Should I air down more? Keep in mind we are carrying an ARB roof top tent and, this is a 2 door. The circle route we are planning to do is about 60-70 miles, and it's a mountain road which varies from bumps to craters to gravel. Not doing anything technical, but rock slides and washouts are expected. My main goal is to soften up the ride, while preventing tire damage from rocks. Suggestions while we enjoy some ice cream?

bloodfart is offline   Quote Quick Reply
Old 06-16-2013, 03:09 PM   #2
Jeeper
 
suicideking's Avatar
 
Join Date: Oct 2011
Location: Riverside, CA
Posts: 4,300
I'd go down to 15.

suicideking is offline   Quote Quick Reply
Old 06-18-2013, 12:08 AM   #3
Jeeper
 
Join Date: Jul 2012
Posts: 521
Quote:
Originally Posted by suicideking View Post
I'd go down to 15.
I set off at 24.5 (just happened to be what I aired down the first tire to, no other reason) since no one had replied. The difference was instantly noticed! Then as the cellphone signal was fading, I saw your post I was still afraid not to go too low since the jeep was weighed down, so i only dropped to 20 psi, but boy what a world of difference. Spent the rest of the day smacking myself for being so thickheaded for almost a year and not airing down before
bloodfart is offline   Quote Quick Reply
Old 06-18-2013, 10:03 AM   #4
Jeeper
 
jaxs1984's Avatar
 
Join Date: May 2013
Posts: 257
I have a 2dr rubi and usually go down to 20 psi and go no faster then about 35mph. I'm using stock wheels and 33' tires.
jaxs1984 is offline   Quote Quick Reply
Old 06-18-2013, 11:00 AM   #5
Jeeper
 
insylem's Avatar
 
Join Date: Apr 2013
Location: Enterprise, Alabama.
Posts: 952
Images: 3
Should we sticky this for newbies to find? I found the info helpful and I'm a newbie Jeeper.
__________________
2013 Wrangler Unlimited Rubicon 10th Anniversary
insylem is offline   Quote Quick Reply
Old 06-18-2013, 11:23 AM   #6
Jeeper
 
DarthGromit's Avatar
 
Join Date: Mar 2013
Location: Boise, ID
Posts: 67
dumb question: if i air down to 20 psi for a forest service road, do i need to keep it under 35 when i get back onto the pavement to town so i can air them back up? or should i only air down if i bring a compressor along?
DarthGromit is offline   Quote Quick Reply
Old 06-18-2013, 12:25 PM   #7
Jeeper
 
insylem's Avatar
 
Join Date: Apr 2013
Location: Enterprise, Alabama.
Posts: 952
Images: 3
Quote:
Originally Posted by DarthGromit View Post
dumb question: if i air down to 20 psi for a forest service road, do i need to keep it under 35 when i get back onto the pavement to town so i can air them back up? or should i only air down if i bring a compressor along?
I'd say bring along your own compressor.
__________________
2013 Wrangler Unlimited Rubicon 10th Anniversary
insylem is offline   Quote Quick Reply
Old 06-18-2013, 12:31 PM   #8
..shall not be infringed!

WF Supporting Member
 
Up Hill Bill's Avatar
 
Join Date: Jun 2011
Location: Up the hill, CA Northcoast
Posts: 4,442
Quote:
Originally Posted by insylem View Post
I'd say bring along your own compressor.
Yeap:

Here's what I got - cheap, effective - goes on sale for $50 on occasion:

Q Industries MV50 SuperFlow High-Volume 12-Volt Air Compressor : Amazon.com : Automotive
__________________
2012 JKU Rubicon
Sahara Tan
Auto
3.73


Up Hill Bill
Up Hill Bill is offline   Quote Quick Reply
Old 06-18-2013, 12:32 PM   #9
President, ThumbJeeps

WF Supporting Member
 
sevenservices's Avatar
 
Join Date: Sep 2009
Location: Mid-Michigan/Thumb
Posts: 3,947
or take it easy on the ride back... it will want to bounce and roll more in the corners.

We'll run down to 10-12 psi in sand. Then just cruise easy to the gas station to fill back up before hitting the hi-way.

A friend was climbing bull gap w/his XJ, aired down to 13 psi he couldn't make the hill. Dropped to 11psi and he made it! All depends on the terrain. For packed dirt trails, you don't even need to air down. For mud & sand... thats another story!
__________________
-Chris
President, ThumbJeeps
CB Callsign "AirForce One"


1994 Wrangler YJ I6 4.0 H/O Auto 3 spd. 4" RC (33x12.5) (15x8) 3:54 Gears
sevenservices is offline   Quote Quick Reply
Old 06-18-2013, 12:46 PM   #10
Jeeper
 
1quick1's Avatar
 
Join Date: Jan 2012
Location: Denver, CO
Posts: 1,142
14-16 will smooth out your ride a lot.
__________________
2014 Willys
1quick1 is offline   Quote Quick Reply
Old 06-18-2013, 03:51 PM   #11
Jeeper
 
suicideking's Avatar
 
Join Date: Oct 2011
Location: Riverside, CA
Posts: 4,300
Quote:
Originally Posted by bloodfart View Post
I set off at 24.5 (just happened to be what I aired down the first tire to, no other reason) since no one had replied. The difference was instantly noticed! Then as the cellphone signal was fading, I saw your post I was still afraid not to go too low since the jeep was weighed down, so i only dropped to 20 psi, but boy what a world of difference. Spent the rest of the day smacking myself for being so thickheaded for almost a year and not airing down before
Yeah, anything will show an improvement. I usually tell people with stock wheels to let out at least half of the air. 20 is definitely better than 35 though.

Quote:
Originally Posted by insylem View Post
I'd say bring along your own compressor.
Agree with this. Get the MV50 that Up hill Bill suggested. I know a lot of people that use that one.

If you really don't want to spring for the compressor, should be fine if you keep it slow and take turns REALLY slow. That would make me nervous. Because if you do lose a bead, you're going to be putting the spare on. So don't lose two at the same time...
suicideking is offline   Quote Quick Reply
Old 06-18-2013, 06:37 PM   #12
Jeeper
 
Join Date: Jul 2012
Posts: 521
Quote:
Originally Posted by DarthGromit View Post
dumb question: if i air down to 20 psi for a forest service road, do i need to keep it under 35 when i get back onto the pavement to town so i can air them back up? or should i only air down if i bring a compressor along?
Get a portable compressor. I got one with a built in LED light and a second port for inflating air mattresses/boats/anything else that's inflatable. All in one tool ftw
bloodfart is offline   Quote Quick Reply
Old 06-18-2013, 07:33 PM   #13
Jeeper
 
HK_Runner's Avatar
 
Join Date: Apr 2012
Location: Ken Caryl Valley, Colorado
Posts: 2,244
I usually go to 16 on forest roads and 10-12 on real trails. I have CO2 but will air up at a gas station to conserve CO2 if one is really close.
__________________
2014 JKU Rubicon- all white with tan leather

LOD front bumper, AEV rear bumper, TeraFlex tire carrier, Shrockworks sliders, Method Standard wheels, 35" MTR Kevlars, Englewood driveshafts, Synergy 3" Lift, Rancho 9000XLs, Artec truss, Teraflex C-gussets, Grabars, HotHead Liners, MORE dead pedal, Tuffy underseat box, Uniden 520 XL, 10lb CO2 tank...
HK_Runner is offline   Quote Quick Reply
Old 06-19-2013, 12:17 AM   #14
Jeeper
 
insylem's Avatar
 
Join Date: Apr 2013
Location: Enterprise, Alabama.
Posts: 952
Images: 3
Quote:
Originally Posted by Up Hill Bill View Post
Yeap:

Here's what I got - cheap, effective - goes on sale for $50 on occasion:

Q Industries MV50 SuperFlow High-Volume 12-Volt Air Compressor : Amazon.com : Automotive

I was going to ask what kind of Air Compressor to get. The one I have for my Cobalt takes a while, and that is small low profile tires. I imagine it would take a LONG time to pump up the Rubicon tires, MUCH more volume of air to move.

Looking at it though, I can't see where it would fit into the cigeret lighter power outlet? The video on one website says you have to hook it to the battery. I'd like to get one that just plugs into the 12V power outlet (Formally known as cigeret lighter) I see this motor pulls like 30 amps though, so a Cig lighter power is a nogo, but I bet I could make a plug for it that WOULD work


Also, this thread gives some good info that I could see lots of people needing/wanting. It sure awnsered some of the same questions I had. I vote Sticky
__________________
2013 Wrangler Unlimited Rubicon 10th Anniversary
insylem is offline   Quote Quick Reply
Old 06-19-2013, 03:50 PM   #15
..shall not be infringed!

WF Supporting Member
 
Up Hill Bill's Avatar
 
Join Date: Jun 2011
Location: Up the hill, CA Northcoast
Posts: 4,442
Quote:
Originally Posted by insylem View Post
.... but I bet I could make a plug for it that WOULD work

....
You'll shoot yer eye out.....


And, blow the fuse. The 13 amp limit of the 12V outlet means you'll have to use a lower amperage compressor and take much longer to inflate your tires.

Battery take off is the only way to go. You could add your own dedicated, fused compressor circuit and devise some sort of cleaver connector for it, or mount it on-board.
__________________
2012 JKU Rubicon
Sahara Tan
Auto
3.73


Up Hill Bill
Up Hill Bill is offline   Quote Quick Reply
Old 06-19-2013, 06:40 PM   #16
Jeeper
 
flyinion's Avatar
 
Join Date: Sep 2011
Location: Sacramento, CA
Posts: 1,360
Quote:
Originally Posted by sevenservices View Post
All depends on the terrain. For packed dirt trails, you don't even need to air down.
You don't "need to" but it sure makes it a lot more comfortable

Quote:
Originally Posted by insylem View Post
I was going to ask what kind of Air Compressor to get. The one I have for my Cobalt takes a while, and that is small low profile tires. I imagine it would take a LONG time to pump up the Rubicon tires, MUCH more volume of air to move.

Looking at it though, I can't see where it would fit into the cigeret lighter power outlet? The video on one website says you have to hook it to the battery. I'd like to get one that just plugs into the 12V power outlet (Formally known as cigeret lighter) I see this motor pulls like 30 amps though, so a Cig lighter power is a nogo, but I bet I could make a plug for it that WOULD work


Also, this thread gives some good info that I could see lots of people needing/wanting. It sure awnsered some of the same questions I had. I vote Sticky
IMO get one that connects directly to the battery. It only takes an extra minute or two overall to deal with popping the hood up/down and connecting the clips. You'll be able to get a much more powerful compressor and not worry about blowing the fuse for the 12V socket every time you use it.
__________________
2012 JKU Sport S in BFG:
Max Tow, LSD, M/T, Connectivity, Infinity, Hard Top, Step Rails
flyinion is offline   Quote Quick Reply
Old 06-19-2013, 11:38 PM   #17
Jeeper
 
Join Date: Jul 2012
Posts: 521
This is what I have: http://m.canadiantire.ca/mt/www.cana....jsp?locale=en

Plugs in the cigarette lighter, has a retractable power chord for easy storage, built in LED light, removable tire gage, you can set the desired pressure, you can fill other things with it, and it fills fairly quickly. I really dont think it took more than 15 minutes to get the tires from 20PSI back to 35. I can totally spare 15 minutes. It takes me 5-10 minutes to get all the rocks out of the tire threads anyway after a trail. Anyway, i got it for $49can on sale, so assuming in the US it's even cheaper, i'd totally recomend it or something similar.
bloodfart is offline   Quote Quick Reply
Old 06-20-2013, 12:03 AM   #18
Jeeper
 
Join Date: May 2013
Location: Apple Valley, CA
Posts: 29
Quote:
Originally Posted by bloodfart View Post
This is what I have: http://m.canadiantire.ca/mt/www.cana....jsp?locale=en

Plugs in the cigarette lighter, has a retractable power chord for easy storage, built in LED light, removable tire gage, you can set the desired pressure, you can fill other things with it, and it fills fairly quickly. I really dont think it took more than 15 minutes to get the tires from 20PSI back to 35. I can totally spare 15 minutes. It takes me 5-10 minutes to get all the rocks out of the tire threads anyway after a trail. Anyway, i got it for $49can on sale, so assuming in the US it's even cheaper, i'd totally recomend it or something similar.
I got the 12v high volume compressor from Harbor Freight on sale for $55. It airs all 4 tires up from 12 to 30 in around 10 mins. As for picking rocks out, once you hit the pavment keep it between 5-10 mph and do several NASCAR inspired hard turns as if u are warming up ur tires. That usually takes care of any freeloading rocks...haha
jesse0920 is offline   Quote Quick Reply
Old 06-20-2013, 12:03 AM   #19
Jeeper
 
insylem's Avatar
 
Join Date: Apr 2013
Location: Enterprise, Alabama.
Posts: 952
Images: 3
Quote:
Originally Posted by Up Hill Bill View Post
You'll shoot yer eye out.....


And, blow the fuse. The 13 amp limit of the 12V outlet means you'll have to use a lower amperage compressor and take much longer to inflate your tires.

Battery take off is the only way to go. You could add your own dedicated, fused compressor circuit and devise some sort of cleaver connector for it, or mount it on-board.
I wasn't talking about hooking it up to the cig lighter. I was talking about wireing into the battery with a 30 or 40 amp fuse, some 14, 12 or 10 gauge wireing and have some other kindof plug for it, one where the contacts are rated for that load.

__________________
2013 Wrangler Unlimited Rubicon 10th Anniversary
insylem is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Featured Product

All times are GMT -5. The time now is 07:08 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC