L8Apex Posted May 29, 2004 Report Share Posted May 29, 2004 Does Nascar use Nitrogen in Tires...? thanks. Link to comment Share on other sites More sharing options...
L8Apex Posted May 29, 2004 Author Report Share Posted May 29, 2004 Cmon...someone has to know.... Link to comment Share on other sites More sharing options...
champ1796 Posted May 29, 2004 Report Share Posted May 29, 2004 good question, I would think that they dont based on the comments of Larry Mac almost every race. Teams starting air pressures too low etc! Seems like if they were running nitrogen that wouldnt be a factor. So,Does anyone know if they do? Link to comment Share on other sites More sharing options...
j.j.&s.racing Posted May 29, 2004 Report Share Posted May 29, 2004 yes they use nitrogen on there tires, but they even go further they have driers before it goes to the tire. alot of teams in bush and asa,hooters.arca we use it in our tams car just dont have the dryer. Link to comment Share on other sites More sharing options...
L8Apex Posted May 30, 2004 Author Report Share Posted May 30, 2004 Then the question is.....then... If they are using Nitrogen in the tires......Nitrogen doesn't expand....what are they talking about with tire pressures coming up.. It doesn't make any sense.... I can see them talking about tire temps coming up...... But Tire Pressure??? On your Tams Car.....do you see Tire pressure's come up...even with the use of Nitrogen? Thanks for your help by the way.. Link to comment Share on other sites More sharing options...
8racefan Posted May 30, 2004 Report Share Posted May 30, 2004 We used nitrogen in the super late model and used bleeders. nascar does not allow bleeders. Link to comment Share on other sites More sharing options...
L8Apex Posted May 30, 2004 Author Report Share Posted May 30, 2004 over a heat or a main....how much do you think Air Pressure came up....more or less.... just trying to gauge how much pressure may build up over a full stint in NextCup... Link to comment Share on other sites More sharing options...
Truck99 Posted May 30, 2004 Report Share Posted May 30, 2004 Nitrogen does expand, just not quite as much as compressed air. Link to comment Share on other sites More sharing options...
NickHolt Posted May 30, 2004 Report Share Posted May 30, 2004 Air always contains a certain amount of moisture. And race tires generate temperature higher than the boiling point of water. What happens when water boils? Steam is generated which causes a great deal of molecular movement (expansion). Nitrogen, or any other inert gas stored in waterproof containers (such as the containers in which Nitrogen is stored), contain less moisture than air, especially air from an air compressor. There will always be a certain amount of moisture in any tire, even those which are filled over and over with Nitrogen in an attempt to displace all the air. Dryers are also used to remove moisture. Depending on their molecular structure, all gases expand to some degre or another when heated. So, the normal expansion rate of a heated gas together with the moisture found inside the tire and the temperatures generated within the tire contribute to the expansion rate of any racing tire. Hope this helps. Nick Holt Link to comment Share on other sites More sharing options...
L8Apex Posted May 31, 2004 Author Report Share Posted May 31, 2004 Got it....and figuring that "Air" can't be completely eliminated from the equation...unless filling the tires in a vacuum, which ain't happening... The question came up....did Nascar use Nitrogen....every other series I know of, whether it be oval or roadcourse racing uses nitrogen.... just wanted to make sure.... Link to comment Share on other sites More sharing options...
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