Pulling Forum - Tire Presure

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Tire Presure

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=128235
Printed Date: 08 May 2024 at 11:52pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Tire Presure

Posted By: Stroud65
Subject: Tire Presure
Date Posted: 03 Sep 2016 at 8:24am

I'm running a set of 18.4-38 Firestone radials on my 7000 Allis and I'm wandering what presure I should be running in them. I've been pulling 8500 and 9000lb classes.
Thanks,
Matt

Replies:

Posted By: dawntreader74
Date Posted: 03 Sep 2016 at 7:23pm

are they cut tires or not cut

Posted By: zulawski87
Date Posted: 04 Sep 2016 at 6:12pm

I would say 10 to 13 pounds. Radial will squat and flex a lot easier than a bias tire

Posted By: DrAllis
Date Posted: 04 Sep 2016 at 7:13pm

Tire pressure for pulling depends on a lot of things.....rim width.....tire lug bar wear or type of cut.....ply rating.....tractor weight.....tire brand.....etc,etc, etc. The correct pressure is what puts you down the track the farthest !! I've run a couple of sets of B.F. Goodrich 20.8 x 38 radials over the years at 25 psi in the 11,000 and up classes on 18 inch rims.

Posted By: Stroud65
Date Posted: 04 Sep 2016 at 7:57pm

Non cut tires. There's not much lug on them. Ran 20psi today at a pull and didn't feel like I hooked up very good. I think it's time to drop the presure

Posted By: rowcropmafia
Date Posted: 04 Sep 2016 at 8:26pm

I would think you would want to be at or a little under 15lbs i usually run 8-12 psi at 6500lb radials