Notices
Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM

tie psi for km2s

Thread Tools
 
Old Mar 6, 2010 | 06:36 AM
  #1  
rhino4bs@yahoo.com's Avatar
Thread Starter
JK Enthusiast
 
Joined: Nov 2008
Posts: 130
Likes: 0
From: pismo beach ca
Default tie psi for km2s

just got km2s they are 35s i have them at 30psi is that a good psi
Reply
Old Mar 6, 2010 | 06:55 AM
  #2  
codysanders's Avatar
JK Super Freak
 
Joined: Aug 2009
Posts: 1,093
Likes: 0
From: spencer, indiana
Default

depends on you rim setup and wieght of your rig? somewere between 25 and 32 should be about right. i run mine at 28 and i have a heavy rig and 9.5 wide rims on 17.

do the chalk test and you will find the best for you.
Reply
Old Mar 6, 2010 | 07:17 AM
  #3  
rhino4bs@yahoo.com's Avatar
Thread Starter
JK Enthusiast
 
Joined: Nov 2008
Posts: 130
Likes: 0
From: pismo beach ca
Default km2

17-8s 2dr hard top
Reply
Old Mar 30, 2010 | 09:04 AM
  #4  
Beel_MT's Avatar
JK Enthusiast
 
Joined: Oct 2006
Posts: 386
Likes: 0
From: Bozeman, Montana
Default

Originally Posted by codysanders
depends on you rim setup and wieght of your rig? somewere between 25 and 32 should be about right. i run mine at 28 and i have a heavy rig and 9.5 wide rims on 17.

do the chalk test and you will find the best for you.
What is the chalk test?

Beel
Reply
Old Mar 30, 2010 | 09:06 AM
  #5  
redrockin7's Avatar
JK Super Freak
 
Joined: Feb 2009
Posts: 1,038
Likes: 0
From: Lancaster County, PA
Default

I run mine around 30-32... shop had them set at 38 when i picked it up and that was way too stiff and the outside edges never touched the road. LOL.
Reply
Old Mar 30, 2010 | 09:33 AM
  #6  
07crawler's Avatar
JK Freak
 
Joined: Feb 2008
Posts: 715
Likes: 0
From: Madera , Ca
Default

I run mine at 28psi . I am running 35's on 15"x 8" rims, gives it a good ride . Chalk test is the way to go.
Reply
Old Mar 30, 2010 | 09:34 AM
  #7  
spinlock's Avatar
JK Junkie
 
Joined: Jul 2009
Posts: 2,343
Likes: 1
From: The San Andreas Fault
Default

28-32 psi is the best balance between ride and load carrying capacity.
Reply
Old Mar 30, 2010 | 12:28 PM
  #8  
Wallsofcrete's Avatar
JK Enthusiast
 
Joined: Jun 2009
Posts: 155
Likes: 0
From: EVINGTON, VA
Default

chalk test is were you rub chalk on your tread the whole width of the tire and a inches the lenght of the tire. With the tire set at what pressure you might think and drive on flat and smooth road stop after a small distance (20 yards or less) check the chalk. and adjust accordingly. Chalk gone in the center too much pressure and vise versa. chalk wear should be even from one side to the other.
Reply
Old Mar 30, 2010 | 12:39 PM
  #9  
Beel_MT's Avatar
JK Enthusiast
 
Joined: Oct 2006
Posts: 386
Likes: 0
From: Bozeman, Montana
Default

Originally Posted by Wallsofcrete
chalk test is were you rub chalk on your tread the whole width of the tire and a inches the lenght of the tire. With the tire set at what pressure you might think and drive on flat and smooth road stop after a small distance (20 yards or less) check the chalk. and adjust accordingly. Chalk gone in the center too much pressure and vise versa. chalk wear should be even from one side to the other.
Ah, nice. Thanks for the information. I'll have to try that, once it dries up...

Had an inch on the ground when we got up and it's been snowing all day.

Beel
Reply
Old Mar 30, 2010 | 01:06 PM
  #10  
BLKRUBI's Avatar
JK Junkie
 
Joined: Feb 2007
Posts: 2,326
Likes: 0
From: Central Georgia
Default

35" Nittos running 30 psi. That should be good for 35'sfor an Unlimited. I'd run less in a 2 door.
Reply



All times are GMT -8. The time now is 05:08 PM.