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      12-08-2010, 01:37 PM   #23
Dave2
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Quote:
Originally Posted by GregW / Oregon View Post
I did just read in the 1/11 R&T (p. 106) this from a Faribanks driver, "...one advantage to nitrogen tire fills: enhanced pressure stability in cold temepratures. With modern tire pressure monitoring systems, annoying warning lights are commonly lit in the morning when the air is cold and thus pressure drops. And in Alaska, it can take a long time for temperatures to rise. 'Swapping nitrogen for moisture-lden aur virtually eliminates this annoying situation for owners of newer vehicles in climates where extreme cold is a way of life,' he advises"
One more time: PV=nRT
Pressure * Volume = number of moles of gas * universal gas constant * temperature.

All gases abide by this law. There is no variation in the law for different gasses; be they nitrogen, oxygen, helium, air, etc.

If the volume stays constant and the temperature changes the pressure will change proportionally.

Stop reading promotional copy and listening to uneducated opinions and open a physics book.

But, on the other hand, if some dude from Fairbanks writes to a magazine and says the Gas Law does not apply to nitrogen then I suppose all those physicists could be wrong…

Last edited by Dave2; 12-08-2010 at 05:55 PM.
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      12-08-2010, 02:21 PM   #24
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Here is a link to a very informative site:

http://home.comcast.net/~prestondrak..._tires_FAQ.htm
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      12-08-2010, 04:16 PM   #25
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some people are just ignorant.
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      12-08-2010, 05:12 PM   #26
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why has no one pointed out the fact that he is riding on ws60's which in my opinion are very squishy/ soft thus the ride change...
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      12-08-2010, 06:05 PM   #27
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I don't understand why people don't use helium. Then their car would be lighter than air?
Will this save me fuel? I'm trying this now... Ill report back soon on how it went.
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      12-08-2010, 06:06 PM   #28
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Okay guys, it worked. But my car has now floated off. Will the insurance cover this?
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      12-08-2010, 06:07 PM   #29
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Will this save me fuel? I'm trying this now... Ill report back soon on how it went.
You could just tie a whole crap load of birthday balloons filled helium to the car.
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      12-09-2010, 12:38 AM   #30
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Quote:
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why has no one pointed out the fact that he is riding on ws60's which in my opinion are very squishy/ soft thus the ride change...
was actually riding on Stock PS2s.
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      12-09-2010, 10:58 AM   #31
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Quote:
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Quote:
Originally Posted by nuespeedgti View Post
why has no one pointed out the fact that he is riding on ws60's which in my opinion are very squishy/ soft thus the ride change...
was actually riding on Stock PS2s.
in that case... oh never mind.
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      12-09-2010, 11:45 AM   #32
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Quote:
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I don't understand why people don't use helium. Then their car would be lighter than air?
I'm not a chemist but I believe that nitrogen doesnt expand and contract as much based on heat like other gasses.
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      12-09-2010, 05:56 PM   #33
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I'm not a chemist but I believe that nitrogen doesnt expand and contract as much based on heat like other gasses.
Awwwwwwwww, come on !!!!!!!!!!!!!
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      12-09-2010, 07:24 PM   #34
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Read this:

http://home.comcast.net/~prestondrak..._tires_FAQ.htm

Don't post any more crap about nitrogen responding differently than air to heat before reading it.


WTF will be next.... grounding kits....

Last edited by Dave2; 12-09-2010 at 07:30 PM.
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      12-10-2010, 10:08 AM   #35
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Awwwwwwwww, come on !!!!!!!!!!!!!
DAVE IV: Good job waving the "bullshit flag" on the nitrogen thing. I actually never believed it myself, regardless of the half-ass post above.

Everything on the topic I read stated pretty clearly that there is practically no deviation between nitrogen and common air as far as Volumetric Thermal Expansion.

For a nice laugh though, check out this crap:

http://www.getnitrogen.org
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      12-11-2010, 07:08 AM   #36
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The local nitrogen filling station is making a tempting offer. With each nitrogen fill they are giving away a free DVD rewinder. This may be hard to pass up...
Attached Images
 

Last edited by Dave2; 12-11-2010 at 07:10 AM. Reason: additioal detail
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      12-11-2010, 10:30 AM   #37
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Quote:
Originally Posted by Dave IV View Post
I don't think so. The ideal gas law still applies to both air and nitrogen equally. If the temp goes up the pressure will go up proportionally regardless of the gas inside the tire. PV=nRT does not have a term for the element.

P=pressure
V=volume
n=moles of gas
T=temperature
R = gas constant = 0.0821 L atm K-1 mol-1.

Furthermore, tire temps will not get hot enough to cause any moisture in the tire to effect the pressure (it would need to approach boiling point) and that the amount of moisture in the air in the tire is insignificant.

If there is still some concern it would be money better spent to buy a dryer for your compressor rather than fill up with nitrogen.
I prefer pv = RT where v is the specific volume... just saying
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      12-13-2010, 11:43 PM   #38
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you guys still going at it? lol
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      12-14-2010, 12:43 AM   #39
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the dealer charges like 100 bucks for it so i never did it but last winter my SA hooked me up for xmas and gave me the nitro fill for free and man i gotta say it is nice. never have to add air and can feel the diff for sure. i don't have the nitro in my winter tires now and i am going to get the nitro when i get new tires in a couple weeks

Quote:
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So guys,

A buddy of mine did me this huge favor of putting on my Blizzak WS60s on my Winter wheels, and decided to nitro fill the Blizzaks as well as my Current PS2s/ZCP wheels.

My gosh, it's a definite noticeable difference! I feel that the car is a bit more stuck to the ground and the car has less bounce! even driving with EDC on Sport in NYC!

Just wondering if any other fanatics have nitro-fill!
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      12-14-2010, 07:03 PM   #40
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the dealer charges like 100 bucks for it so i never did it but last winter my SA hooked me up for xmas and gave me the nitro fill for free and man i gotta say it is nice. never have to add air and can feel the diff for sure. i don't have the nitro in my winter tires now and i am going to get the nitro when i get new tires in a couple weeks


Ugh!!!
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      12-14-2010, 08:36 PM   #41
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http://www.popularmechanics.com/cars...stions/4302788

http://www.formula1.com/inside_f1/un...port/5283.html

http://www.motorsportreport.com/inde...=1:latest-news

Last edited by cssnms; 12-14-2010 at 08:53 PM.
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      12-14-2010, 08:53 PM   #42
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Just goes to show how misinformation gets propagated.
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      12-14-2010, 08:55 PM   #43
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Just goes to show how misinformation gets propagated.
You seem to know a lot about that Dave.
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      12-14-2010, 09:04 PM   #44
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If F1 uses it and has tested it...then I don't really think anyone has a claim against it.
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