Tire pressure question???
#1
Member
Thread Starter
Join Date: Aug 2013
Location: Southern Delaware
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0/6 cyl
Tire pressure question???
I recently purchased a set of 31x10.50/15 Mickey Thompson MTZ's...
They came mounted and set at 50psi....my question is....does anyone have a suggestion on what pressure I should run them at for my daily driver XJ????
They came mounted and set at 50psi....my question is....does anyone have a suggestion on what pressure I should run them at for my daily driver XJ????
#3
CF Veteran
Join Date: Oct 2010
Location: Ontario, Canada
Posts: 2,150
Likes: 0
Received 12 Likes
on
9 Posts
Year: 1989 Laredo
Model: Cherokee
Engine: 4.0 L 6 Renix
I run my 31's at 44 psi on the street for smooth and balanced wear. Yes that's hard but your runnin pavement. Got to 20 to 30 for offroad. I don't do less than 20 since no beadlocks.
Have done with Goodyears, Goodrich, Uniroyal (they rate 50psi for max loading). Peeps got 634000km so we've done the testing.
Have done with Goodyears, Goodrich, Uniroyal (they rate 50psi for max loading). Peeps got 634000km so we've done the testing.
#4
Asking about tire pressure is about like asking what's the right oil to use. LOL
Every tire is different. Use manufacturer specs and go from there. You want a nice even contact patch across the treads.
For me its 36-40 on road. 10psi off road.
Every tire is different. Use manufacturer specs and go from there. You want a nice even contact patch across the treads.
For me its 36-40 on road. 10psi off road.
#5
CF Veteran
Join Date: Jan 2008
Location: LI, NY
Posts: 3,671
Likes: 0
Received 10 Likes
on
10 Posts
Year: 1998
Model: Cherokee
Engine: 4.0, bolt ons for days...
you guys running over 35psi are crazy. thats a contact patch about the size of my big toe. i run my 35s at 28-30 and thats an even wearing contact patch across the tire.
#6
CF Veteran
Join Date: Jan 2011
Location: Rochester
Posts: 1,021
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2001
Model: Cherokee
Engine: 4.0
#7
Trending Topics
#9
CF Veteran
Join Date: Jun 2011
Location: Louisville,KY
Posts: 8,014
Likes: 0
Received 16 Likes
on
16 Posts
Model: Cherokee
Use the chalk test it works,You draw a chalk line across the tire and drive it around.The you look at the chalk line if its gone in the center too much psi if its gone on the edges not enough psi.
#11
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,971
Received 1,559 Likes
on
1,263 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
31 works fine for me. Not too harsh and not too squishy.
Thread
Thread Starter
Forum
Replies
Last Post
Docruiz
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
0
09-02-2015 07:54 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)