37" tire pressure .........?
JK Junkie
Joined: Apr 2007
Posts: 3,695
Likes: 0
From: Apple Valley, California Good ole Mojave Desert.
from the sticky in here:
On the road, what PSI should I be running in my tires?
A: For optimal comfort and even tire wear. you should not run the recommended PSI listed on the sidewalls of your tires. Typically this will be way too much. On average for a 33" tire, I would recommend that you run your tires at approximately 28-30 PSI. For a 35" tire, I would recommend running approximately 26-28 PSI. For a 37" tire, I would recommend approximately 24-26 PSI.
do the chalk test method for exact psi.
On the road, what PSI should I be running in my tires?
A: For optimal comfort and even tire wear. you should not run the recommended PSI listed on the sidewalls of your tires. Typically this will be way too much. On average for a 33" tire, I would recommend that you run your tires at approximately 28-30 PSI. For a 35" tire, I would recommend running approximately 26-28 PSI. For a 37" tire, I would recommend approximately 24-26 PSI.
do the chalk test method for exact psi.
JK Super Freak
Joined: May 2009
Posts: 1,320
Likes: 1
From: Lakeside, CA
I run 28-30 PSI in my 35’s. So I would think that with 37’s you might want to try 28 PSI and work down. You know you got too far when you don’t like the feel when you are driving or you gas mileage goes to hell.
JK Junkie
Joined: Nov 2010
Posts: 2,942
Likes: 0
From: Valencia, CA
Just my preference for 37s: 30 to 32 psi on the highway. 12 to 15 psi on the trail.
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
Start with what was suggested in the FAQ's, and then start experimenting with chalk tests and test drives.
My 35's feel 'squishy' at the psi most on here recommend, so i run them 4-5psi higher. Add another 5, and the ride gets rougher and more flighty. It's all about contact pattern and where they feel right to 'you'...
My 35's feel 'squishy' at the psi most on here recommend, so i run them 4-5psi higher. Add another 5, and the ride gets rougher and more flighty. It's all about contact pattern and where they feel right to 'you'...
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JK Junkie
Joined: Jul 2008
Posts: 3,017
Likes: 0
From: Lakewood, OH
This is going to widely vary from one tire to the next. The amount of air I ran in my 125 Service Description Toyos is far different than what I would run in my 111 Service Description Goodyear MTRs.
A good starting point is subtracting the new tire service description from the OEM service description (for practical purposes 112). Then reduce your tire pressure by the result according to the placard data. It's not perfect, but a decent starting point for on road use.
A good starting point is subtracting the new tire service description from the OEM service description (for practical purposes 112). Then reduce your tire pressure by the result according to the placard data. It's not perfect, but a decent starting point for on road use.
