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stugray · 11-02-2014, 02:29 PM

The ONLY advantage to using dry nitrogen in aircraft instead of dry air is that the N2 is non combustible which is important in aircraft, not cars.
And as for the "my pressure changes less due to temperature changes with the Nitrogen":
Bullshit! Last time I checked PV-nRT applies to all gases which means that the Pressure change due to temperature is the same for Nitrogen as it is for "Air" especially since '"Air" is already 80% Nitrogen.

The ONLY difference it makes is that less moisture can translate to more consistent pressure to temperature variation.
That is because the presence of a phase change material (water) in the tire can make the pressure vs temp profile non-linear and NOT follow the ideal gas law.

So if you use an air dryer on your compressor, you will see no difference between dry air and Nitrogen.

But hey .... It's your money.

11-02-2014, 02:29 PM	#10
stugray Banned Join Date: Sep 2013 Drives: 2013 GBS BRZ Limited Location: Colorado Posts: 1,925 Thanks: 627 Thanked 1,445 Times in 711 Posts Mentioned: 41 Post(s) Tagged: 0 Thread(s)	The ONLY advantage to using dry nitrogen in aircraft instead of dry air is that the N2 is non combustible which is important in aircraft, not cars. And as for the "my pressure changes less due to temperature changes with the Nitrogen": Bullshit! Last time I checked PV-nRT applies to all gases which means that the Pressure change due to temperature is the same for Nitrogen as it is for "Air" especially since '"Air" is already 80% Nitrogen. The ONLY difference it makes is that less moisture can translate to more consistent pressure to temperature variation. That is because the presence of a phase change material (water) in the tire can make the pressure vs temp profile non-linear and NOT follow the ideal gas law. So if you use an air dryer on your compressor, you will see no difference between dry air and Nitrogen. But hey .... It's your money. Last edited by stugray; 11-02-2014 at 03:16 PM.