How much psi are you guys running while off roading/ rock crawling? I'm running 35" yokohoma mts.
Tire Air Down
- Thread starter AU Road Runner
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
I'm usually around 15lbs. Not having beadlocks keeps me from getting near single digits.
You should be abale to safely air down to 15psi or so.
.
ElPolloBlanco
SILVER Star
My deflators are set at 12. I think it's about right for my Fierce Attitudes.
- Thread starter
- #6
What is a good tire inflator/air pump I could buy for a reasonable price to re-fill the tires after leaving the trails? How big of a compressor is needed?
CruiseOrlando
Conveniently Enhanced
I can tell you that the model from Harbor Freight takes 2 HOURS to refill my tires from 15 PSI back up to 45.
It cuts out all the time and has to cool down before it starts again. And this is the model that attaches directly to the battery leads, not thru the cig. lighter plug.
You can definitely do better than that, but you'll have to spend some money. This is one of the many reasons I want to put an air compressor on my rig driven by the A/C belt. Or just mount a tank and fill it somewhere else before you go out and use that.
It cuts out all the time and has to cool down before it starts again. And this is the model that attaches directly to the battery leads, not thru the cig. lighter plug.
You can definitely do better than that, but you'll have to spend some money. This is one of the many reasons I want to put an air compressor on my rig driven by the A/C belt. Or just mount a tank and fill it somewhere else before you go out and use that.
The little puma seems to be the choice if wanting to a make a OBA system
economical:
MV50 - comes with different brand names ($55 on Amazon right now)
what the cool kids have:
what the cool kids have:
This is why I ended up with an C02 tank. As much as I use it, it was the better route for me. I fill maybe 4 times year.
Last edited:
we ran CO2 for a number of years but ultimately found it too cumbersome since the gas shop was not open on weekends - and, we needed it more often than 4-times a year
Last edited:
The correct pressure for you may be significantly different from the pressures used by others. It depends on the construction of the tire in question, the load of the vehicle, and the type of terrain. There is no one correct pressure for all variables.
You should experiment a bit with different pressures and see what works best for your setup. 1 or 2 PSI can make a huge difference in traction and comfort.
I run 16-19 lbs and have a smittybilt 2871 compressor that I've been very happy with
Tapage
Club 4X4 Panamá
12PSI it's the lowest .. and PUMA save the day .. but MV50 or MV90 are great choices .. to be honest they will do great job up to 32 - 34 PSI ..beyond that barrier it will take a while ..
x2, I run soft ATs and do fine at 16-18. With a stiffer tire, you'll need to go lower.
93yotasr5
Come and take it
i usually will hit as low as 12 in the sand and stay at 15 most of the time on rocks. i prefer Co2. i have a powertank valve on a 20lb tank and it works great. i only use it a couple times per year. I dig the Viar ultra or heavy duty system. i may end up with that one of these days.
Ha,ha. At least I'm not the only yahoo with a 20lbs tank!! The only downside is filling everyone elses tires.
I usually air down to 20 psi on 315's. I have Falkens, however my buddys have the KM2's and the sidewalls seem soft. The MTR's on the other hand seem real solid. These vehicles are heavy.
I have the Puma and really like it. It will get the tires aired up fairly quickly. The price isn't too bad compared to some others. I purchased mine from an Ebay vendor. A clip on air chuck makes life much easier. It will also run small air tools with patience. I just like the fact that the Puma will continue to compress air, but an empty tank won't help much.
Yeah, x3. It depends.
On the other hand, if you're just looking for a "safe" psi and haven't had a chance to experiment with whatever is running on your rig right now, then the 15 psi number that seems popular is a good bottom end until you get more experience.
A good safe way is to start at a higher pressure, drive some, se how it goes, then stay or go a pound or two lower. You may have to take into account tire heating, in case you get some funny numbers at first when rechecking tp.
For sure be careful if you want to get extreme and start getting down near 10 psi. You can roll things right off the rim there if you're not careful and are used to playing on soft, pudgy meats. On the other hand, crazy performance improvements in some situations.
