Staun vs. ARB Deflator

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Dissent

Dissent

Questioning my life choices...
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I've got an ARB deflator that works very well but my son suggested we buy another to speed up the air down process. I saw a few of you guys using Staun type pre-set deflation valves during the Mingus run and I'm considering getting a set.

The question I have is how does one calibrate it for 16lbs at 1500ft in the desert at 85 degrees then have it still work correctly in the mountains at 6000ft and 40 degrees? Wouldn't the pressure be off substantially given the altitude and temp changes?

Should I stick with a pair of ARBs or switch to Stauns?
 
I think you are over thinking it.:slap: 16 PSI will be 16 PSI at whatever elevation or temperature. Now if you deflate to 16 PSI and then change elevation the pressure will be off.
 
Good point, got caught up in the calibration piece of it. :doh:
The pressure's going to change over the actual trip from 6500ft to 2000ft but that would occur no matter what. This is where having the cash for an impulse buy overrules thinking about it too much. :D
 
Dissent said:
Good point, got caught up in the calibration piece of it. :doh:
The pressure's going to change over the actual trip from 6500ft to 2000ft but that would occur no matter what. This is where having the cash for an impulse buy overrules thinking about it too much. :D
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After reading reviews of the Staun deflators the biggest gripes are getting them calibrated and how they were set. If they are calibrated to 16 PSI when the tire is cold like most folks do and then screwed on after an hour or so drive (hot tire) as the tire cools at slow off road speeds the final pressure will be lower than the desired 16 PSI.:confused:
 
I calibrated mine on a cold bike tire.:confused:
 
LOL, yeah, I know to calibrate on a warm tire. I had wondered who would air down on a cold tire but then again, if you were to camp before your run, you may do that. Just needs a little thought put behind it...not too much though...;)
 
I like just screwing them on a walking away. Can shoot the shiz with others in the meantime, or go in and buy a permit ect. I have the Trailhead ones.
 
Yeah, I even brought my delfation monkey (son) thinking I'd have more time but that's not working either. Now the monkey isn't happy and that eats up more time. :p I'll push for a set for Father's Day. Thanks for the feedback!
 
I actually have two sets, both were gifts. One is set at 15 for trail and the other is set at 22 for washboardy gravel roads. I have had them for many years. I calibrate on my spare. That way I can do it just standing at the rear of my rig. I have never worried about pressure changes with temperatures or altitudes, as I have never seen it make more than 1 or 2 psi change. All four tires on the ground will change the same amount, so is it enough to be concerned with? Not for me. While these may not be the fastest way to air down, they are certainly the laziest, as mentioned, I can do other things while they leak down. John
 
Check out the Trailhead deflators. Caibration is done internally with a allen wrench, less likely to go out of adjustment if dropped or bumped. They come in a nifty little kit, and a little less $ than the Stauns,$ 59.00 at amazon.They are both high quality.My .02cents Oh, by the way I calibrated mine on a hand truck tire.
 
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I've seen those. I'll check them out too.
 
There is also another brand similar to the Stauns that have hex head bodies so you can use two box end wrenches to snug them down when calibrated. Not sure of the brand name, but I would prefer that over the knurled body of the Stauns. John
 
Those are the newer models known as Staun 2.0 which are produced by Coyote Enterprises owned by the original Staun patent owner. Turns out Staun went belly up and the guy that designed these pulled out and started Coyote a few years ago. They have a pull ring to get them started and hex lock ring to tell them from the original Stauns. That's the one I'm eyeballing.
 
Dissent said:
Those are the newer models known as Staun 2.0 which are produced by Coyote Enterprises owned by the original Staun patent owner. Turns out Staun went belly up and the guy that designed these pulled out and started Coyote a few years ago. They have a pull ring to get them started and hex lock ring to tell them from the original Stauns. That's the one I'm eyeballing.
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Kool! Good to know the back story.
 
How about a tire deflator shoot out at the next meeting. Speed, accuracy and ease of use. 1st prize - New LandCruiser or a CSC sticker.
 
My Stauns would go out of calibration frequently. so after using a wheelbarrow tire to dial them in where I wanted, I put a couple of drops of superglue on the threads which seems to of held up well so far.
 
Are they the older knurled style? Can't tighten with a wrench and have em stay put?
 
I use the Trailhead brand and am very happy...very easy to adjust to different scenarios with repeatable results.
 
I know at higher speeds and on a track even half a pound of difference is a significant tuning adjustment but nearly a foot of sidewall sittin' under a couple of tons rolling along at 5mph I can't imagine the difference between 14 and 16 psi making a difference. Too low and you're more likely to slip a bead but...anyways...after I borrowed someone's set of Stauns and went digging and found my old set I bought a decade ago. Got'em set to 15psi and I'm lookin' fwd to screwin'em on and forgettin' about'em soon!

:beer:
 
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