Staun vs. ARB Deflator

[Dissent]

Bottom line is you need a complacent deflation monkey or a set of Stauns.

 

[murf]

Bottom line is you need a complacent deflation monkey or a set of Stauns.

Must be nice to have the option

 

[Dissent]

Always have options!

 

[fengler]

I use the coyote deflators, Fumann recommended them to me, they work great.

Edit: I also calibrated them and then dropped a tiny bit of superglue on the locknut after they were dialed in.

 

[LandCruiserPhil]

I use the coyote deflators, Fumann recommended them to me, they work great.

Edit: I also calibrated them and then dropped a tiny bit of superglue on the locknut after they were dialed in.

IIRC same company as Stauns

 

[Dissent]

Yup, Coyote are version 2.0

 

[medtro]

Added to Important Club Threads - Check Here First! >>> CSC Technical FAQ

 

[LongDuck]

I seem to have had this conversation with several club members over the years, and it all comes down to Boyle's Law regarding Pressure (P), Temperature (T), and Volume (V) - whereby an increase in Temperature with consistent Volume increases Pressure (like driving on the road to get to the trail), then you deflate them decreasing Pressure, which decreases Volume, and then drive on them at less than 5-10mph for hours on end. The Pressure along the way makes little difference in the slight variation you'd see as a result of calibrating the pressure at a lower altitude or higher temperature (Volume stays the same as your tire expands or contracts based on ambient air pressure at various altitudes).

All that to say that I've found 36psi highway, 18psi offroad on 35" Nitto Terra Grapplers to be about perfect and calibrated my Staun's on the spare of identical size/volume to the ones I drive on. They always get it to within 1-2psi when I've checked during air-down, and I've never obsessed about getting them to a specific pressure based on altitude.

 

[Dissent]

Good info, I'll get the Staun II's for Father's Day possibly.

 

[fengler]

I get what youre saying @LongDuck PV=nRT, but I think its mostly a convenience factor and knowing they will be aired down to +/- 3ish psi within youre desired range.