Good morning!!! I was wondering about what tire pressures people are running on the road. I have Dick Cepek 33+12.50+15. I have the tire pressure nailed down for the beach not kind of all over the place on the road?
What tire pressure are people running for on-road driving?
- Thread starter funckmaster flash
- Start date
Most run street pressure in the 26-29 psi range. Off road pressure from 12 to 18 psi. Best to start above 15 to be sure the tire stays mounted. Those tires are made by Cooper. And are typically made with a very good lip on the tires.
I run 12 on the beach....started at about 18 and just not like the way it handled. So far at the 12 seems to be alot better.
Most run 26psi on "C" rated tires if your Jeep weighs around 4000lbs. If you're running with more weight bump it up a psi or two.
For the average TJ/TJ owner on 33's (nothing hardcore/extreme) I usually say 26-28 on the street, 12-14 for most trails, 10-12 on sand.
Bump up to 35's or choose E load range rather than C load range and my "average" suggestion goes down a bit to 24-26, 10-12 and 8-10.
These are starting points.
Although OP hasn't asked yet, for a quick and easy deflation tool that provides consistent results every time, I use these, set at 12 psi:
https://www.coyoteents.com/product/coyote-automatic-tire-deflator-4-56-psi/
https://www.amazon.com/dp/B00JJND26I/?tag=wranglerorg-20
As for 12v compressors for airing back up at the end of the day, my brand preference is Viair for a moderately priced, reliable unit. The 300 and 400 series compressors would both be good for 33" and 35" tires. I have a Viair 400H hard mounted under the hood and also a 400P portable unit that I have owned for many years.
Bump up to 35's or choose E load range rather than C load range and my "average" suggestion goes down a bit to 24-26, 10-12 and 8-10.
These are starting points.
Although OP hasn't asked yet, for a quick and easy deflation tool that provides consistent results every time, I use these, set at 12 psi:
https://www.coyoteents.com/product/coyote-automatic-tire-deflator-4-56-psi/
https://www.amazon.com/dp/B00JJND26I/?tag=wranglerorg-20
As for 12v compressors for airing back up at the end of the day, my brand preference is Viair for a moderately priced, reliable unit. The 300 and 400 series compressors would both be good for 33" and 35" tires. I have a Viair 400H hard mounted under the hood and also a 400P portable unit that I have owned for many years.
I already bought the ones with the gauges that you set before you put them on the tires already........I had those and gave them to some guy using a screw driver to deflate his tires....you would have thought I handed him a thousand dollars......
I love to see how people new to sand driving react when you show them real deflation tools. It was a very long time ago, but I can still vaguely remember "graduating" from my jeep key to a set of these (which I still have after all these decades and frequently lend out):
Mobusaki
TJ Enthusiast
My Jeep weighs 4,200 lbs (guesstimated based on mods, not weighed), has 265/75r16 (31.7") Duratracs in load range C. On the road I shoot for 29 psi but sometimes end up at 28 or 30 psi. All work fine. Offroad is 10-13 psi.
I usually run 32-36 psi for everyday driving, and 42-48 when heavily loaded. Most would probably recommend lower pressures. I have 315/75R16 (35×12.5 equivalent).
I'll bet this brings out the "you'll shoot your eye out " comments.
I wouldnt worry about your eyes. All of your dental work will rattle loose first.
I’m also running 35 psi in all four airbags when heavily loaded...I'll bet this brings out the "you'll shoot your eye out " comments.
I wouldnt worry about your eyes. All of your dental work will rattle loose first.
I want to get some adjustable shocks as well. Unfortunately the Fox reservoir shocks aren’t cheap, and the RS9000XL have abysmal travel.
The Swayloc definitely stiffens the body roll, especially when the roof rack is loaded up.
Max tire pressure in the tires is 80 PSI so I could go much higher...
You could get into dutch oven cooking. The gear for that could easily add another 500# to your load.
These guys talked me into lowering my pressure - so I'm now running 32 on the street, which is still way higher than most here. I didn't notice any difference between 32 and the previous 40 that the tires had in them when I bought the Jeep. I run 35 in both of my cars - in the case of the Mercedes, it just handles better (to me), I don't like tires that feel "squishy".
You are not going to notice any significant change until you get under 30 psi. Try it. You can always put air back in.
That makes sense too - years back the MBZ came out of the tire place with the American market recommended 28 in the fronts (European recommendation is higher). Didn't like how it felt on the road, pumped it up to 35 and was happy. 32 would probably be find too based on your comment.
When I'm camping at car accessible sites (rarely), I do bring a good amount of cast iron.
A long canoe trip (more than a week long) could easily exceed that loadout. Two 75-lb canoes, paddles, equipment, food, portage packs, PFDs, cooking gear, etc. can easily exceed 600 lbs. Food alone can weigh 150+ lbs. Maybe a couple of 40 lbs gas cans for range, and 100 lbs of recovery gear and tools. Then cram four 150 lbs people in, and you've got yourself quite a load.
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