spf4000

For those of you regurgitating high school chem knowledge:

http://www.advancepitstop.com/Advanc...ndex=Nitrogen#

http://www.nitronics.com/news.htm

http://www.racelinecentral.com/tirehistory.html

AndyB

Nope, I was not saying that at all. I was saying the opposite. The temperature would NOT reach boiling, even at 1 ATM. And if it did the presence of nitrogen would not stop it from boiling anyway.

raceboy

Wow, lot's of speculation here. Let me tell you from my point having used Nitrogen in my kart tires for the past 15 years.

First of all, oxygen causes oxidation. Nitrogen is widely used by trucking companies to extend the life of their tires. Since they reuse the inner part and retread the tires often, they need that inner part to last as long as possible.

Nitrogen does also travels through the rubber 30-40% slower than air helping maintain proper inflation as well.

Nitrogen is a non reactive gas (won't go boom and feed a fire). You buy it from medical supply companies and therefor there is not water in the nitrogen. Otherwise the nitrogen itself expands at exactly the same rate of air, but because it is pure unlike air (especially from compressors) where there is a high water content, the nitrogen filled tire won't expand as much and you will have less air pressure change as the tire heats.


All NASCAR, CART, F1, ALMS, and all pro racing teams that I know of for that matter, use nitrogen to fill their tires.

http://www.airproducts.com/corp/rel/1996/96106.asp
http://www.bodydynamicsracing.com/tires.htm

Murry

Why is nitrogen more STABLE than DRY air? Why do people think that it won't change temperature like air--(Both can be condsidered ideal gases)? What it the maximum temperature inside a tire? The only theory that holds water is corrosion so far....

BTW-- Just because someone has a nice looking website doesn't make the information accurate. Their point might be correct but their wording needs help.

O2 doesn't go boom fuel does.

-Murry

jackwhale

Thanks Raceboy for the links. Its nice to have some facts to fuel a discussion.

Murry

So they are talking about the partial pressure of water vapor, not necessarily steam.

Relatively unaffected by temperature. OK sounds like dry air would work well too. Does anyone have practical experience to prove or disprove this theory. I am really curious about the truth. So don't react negatively (Flippant remarks).

-Murry

raceboy

Dry air would also work just as well, but it's very hard to get dry air. Much easier to just get nitrogen. And then you also get the added benefit of a nonflammable gas.

Murry

Raceboy,

Thanks for the positive feedback. The nitrogen question finally makes sense.

See you around,

Murry

spf4000

Raceboy,

Do you use nitrogen in the tires of your Z? Or is it cost prohibitive?

johnlotusboy

iTrader: (1)

I use nitrogen in my tires, the pressure shift is much less with the temp. changes from freeway driving. This is more important with an initial inflation of 23psi that my Lotus uses. inflation changes 1 psi per 10 degree of temp rise, nitrogen does not rise like that and doesnt leak out like air. I get mine from a friend at a motorcycle shop, cost is under 1 dollar a tire!

It works great for me.
Good luck

DMONTE

My local costco wholesale store uses nothing but nitrogen to fill their new tires that they sell I went there just the other day and ask if they could fill my tires as a member , the nasty tire manager refused funny thing is they will repair your flat tire as a member free of charge whether you purchased the tire there or not, so I guess I'll have to pull up and let all the air out of my tires and then see what they do

Lawn Dart

iTrader: (4)

I work at an airport - I've been running nitrogen in my tires for about 3 months. Seems to quiet the feathering down some. I guess because the air isn't changing pressure.

scz

iTrader: (1)

Thank god for raceboy, I was just about to say the same thing. I almost had to laugh because it was obvious that all of you guys spitting out information you read off of your periodic table/dinner placemat, have never even stepped foot on a racetrack. Raceboy is 100% correct. End of discussion, hopefully.

macka

NOT SO FAST:

If my molecular phasing wave combobulator is correct...the thermal couple inline diversification overhaul mechanisim has to be interpopulated with crotch oil at or above the point of manifestation to hold the inline roundabout at or above functional worky work.

J/J

WOW - I had no idea we had this many smart folks on this board. I figured you guys would all be dumb like me

This is a good thread, I have enjoyed reading it...even though it made me feel dumb as a stump.

Macka

scz

iTrader: (1)

Wow, you just punked everybody!

grifferjr

HUH?

Wicked4u2c

iTrader: (6)

Raceboy you hit it right on the money!! My dad works with semi trucks and some have used Nitrogen and the life is amazing with it on. Less weight, doesn't leak out as much, and the pressure doesn't change. GOOD POST, im surprised this hasn't leaked out earlier.. Check this link out as it is very informative and you will learn everything you need to know

ENJOY PEEPS

http://irgaragesolutions.com/n2/

Santacruzslick

iTrader: (12)

Ok...come on. Admit it! We all know you only want to use nitrogen to be different! LOL. I mean...who wouldn't want to be able to say "Oh yea, I put nitrogen in my tires because it's all high-performance and stuff". LOL. I'd do it!

phoenixZ33

When I worked on a Ferrari Challenge team, we used Nitrogen in tires. The only reason we used it was because the pressure didn't change *as much*. It would still change during a track session, but instead of it going from say 35->42psi, it would go from 35 to 37/38psi. Other than that, I don't see why you'd need it on a street car.

Nano

iTrader: (1)

nitrogen tire filling is very popular in Europe.

About 1 car every 3 new car has tires inflated with nitrogen here. Some cars have nitrogen from dealer. Everyone is equipped with nitrogen here.

You recognize nitrogen filled tires because they use red tire valve caps.

all my cars in EU have nitrogen(even my 60hp mini classic) , all my cars in NA have normal air. LoL. Honestly Imho it's a marketing business pointless scheme. There may be some benefits at the extreme(racing, military, planes, trucks etc..), but in most street driving conditions, it's irrelevant.

If I remember, Nitrogen has 10x lower permeation rate than oxygen. so a delta in pressure due to permeation that takes 10 days with oxygen, would take 100 days with nitrogen. Also, tires have been seen to run slightly cooler with nitrogen.