Well, there's a tire shop around here that is now putting Nitrogen in the tires instead of air. It seems to be a heck of a lot lighter! I brought a flat to them, and it weighed almost the same flat as it did w/ the nitrogen in it, and the full w/ air ones are heavy suckers lol.

Does anyone have any experience with this? Would nitrogen help you hook better? Or just be good for less rotating mass?

Any help would be great, thinking about putting my camaro on blocks and having the shop fill up my tires with nitrogen, but I'll probably get new tread and rims before i do that, just wanted to know if I should spend the money to care

 

umm i;m not to sure but i don;t belive air has any weight to it.

if you put 35 psi in your tire your not adding 35 lbs to the weight of your car.

nitrogen has been used in race tires for many years, why? it does not heat up as fast or the same as regular compressed air. there are more diffrences i'm sure but i'm no expert.

i would not spend money on nitrogen for a daily driver, or any car for that matter unless someone can say that it has a super purpose.

jeff

 

Nitrogen is dencer than air but not by much.
Air is 78% to 79% nitrogen.
Air does have mass. One cubic foot of air @ 48'F weights .078125 lbs. It's mass is related to it's dencity.
PSI is not a mesurement of mass in this case it is how much force is being applyed evenly in all directions to what is containg it.
Nitrogen is used because it is pure and dry. It has no water vapor in it. It expands under a constant rate.
And if a tire catches fire and blows out it will not make a big flame and won't make the fire any bigger. Magnesium rims are hard to put out when they catch on fire too.
That is why I make it and they use it on F16 tires and sturts.

 

Jeff's correct. Nitrogen is relatively unaffected by temperature, at least the temperatures that our tires see. You know how you are told to check the air pressure of your tires cold?. There's a reason for that.

Now, with that said, some places that claim "nitrogen" are simply compressing air, because nitrogen is a major component of air. If you play paint ball, you either run a CO2 tank or nitrogen. When you go to get a fill of nitrogen, all you are getting is compressed air, at least at the place I go to.

 

ok so 35 psi in a tire would be how many cubic feet? or since that may not convert.

lets say a tire like a 245 / 45/ 17. how much cubin=c feet of air would be in it any idea? just curious abou the weight thing i would expect it doesn;t weigh much of anything? is that correct

 

Well that about answers it for me Thanks for clearing that up, guess it was just a mind illusion that the "nitrogen" tire weighed less than the "air" filled tire. Good things to know heh. Though I do wonder if it would be better for road trips when your tires see some extreme and constant pressure.

 

In a paint ball gun you can tell the difference from air and real nitrogen. I know that when I get nitrogen that it is real N2 becasue I am the one making it most of the time.
To find the volume inside the tire fill it to 14.7 psi and let it out and measuer it in a water tank.

 

How do you make your own nitrogen?

 

With a Self Generating Nitrogen Cart made by some company in california.
We have to ops check the high pressure and low pressure regs to make sure they despence the product even thow we don't have any kind of tester .