davidegai

I just brough my SL to have the wheels balanced, after 1000Km of driving, and he inflated them with Nitrogen, which is supposed to be better than plain air. Has anyone tried it out yet?

FrankW

can you say "Boom"

EBMCS03

No, but the idea is fine. Commercial airplanes use N for their tires. It doenst inflate as much as normal air when your tires get hot, and because oxgen atoms are a tad bit smaller than nitrogen you dont need to inflate your tires as often.

Ok oK.. a more scientific answer...

"Nitrogen is a very unreactive gas. If you fill a tyre with dry nitrogen gas, it is possible to predict how much it will expand as the tyre heats up from friction with the road. Air on the other hand is an unpredictable beast. While its composition is always the same, consisting of 76% nitrogen and about 20% oxygen, the amount of water in it can change from minute to minute and this water makes the expansion of air very unpredictable.

The height of a racing tyre is critical to a couple of millimetres. If the pressure in a tyre is too high the car will be difficult to steer and if it is too low the car may scrape the track, so race engineers need to know exactly how much the gas in a tyre will expand during a race. In the extreme situation of a crash the fact that nitrogen expands less than oxygen when heated means there is less chance of the tyre exploding during a fire. Tyres can explode with the force of a dynamite detonation, which increases the risk already faced by rescue crews.

This is the high performance end of the spectrum, but nitrogen is also used in the tyres of more every day vehicles. Long distance lorries often use it as water in air oxidises the rubber in tyres causing them to corrode. Over longer periods gas also diffuses out of tiny pores in rubber tyres. As a nitrogen molecule is larger than an oxygen molecule it leaks out of tyres three times slower than air, which maintains tyre pressure and therefore tread wear. All in all, using nitrogen in tyres can more than double their lifespan, although for the flimsy racing tyre which needs changing several times in a race nothings going to make that much difference."


http://www.bbc.co.uk/science/science...ingtyres.shtml

W0n6_3d4n

I use nitro in my tyres and i get 19 inch, i can feel softer ride, and my tyre looks in good shape after a month

davidegai

I filled them up with nitro an hour ago. I'll let you know i a week's time.

GMW

Now this is new news! I only wonder.....

henry42

Where do you get Nitro fill in U.S. ?

jco-amg

Common practice in race tires.

blueSL

Hydrogen would make the tires go with a bang

SL55lova

I think helium would be the best. If you had an air leek... you will know it very fast. Because your voice will sound funny...

But you know what. Even after all of that. I will still be afraid to try nitrogin on my tiers.

EBMCS03

With Helium I think your car will sound funny.

dNA3D

Nitrogen, Helium, whatever... they will all blow up when coming in contact to fire. Very very unsafe, and you definitely won't have peace of mind.

NightSea

Nitrogen and Helium are very safe and not explosive with fire.
Any gas tank can be exploded when too much heated .

Pressure in tyre with air can not be stable.

If you have tyre pressure monitor option at your SL55,
try it with different ambient temperatures.
You will find out the pressure varies and sometimes
there is a difference among 4 tyres which were filled
with same air pressure.

I think this variance came from humidity which any air compressor has it ( some compressors emit oil with humidity).
As you know, humidity can change the air pressure in tyre
very easily according to the tyre temperature affected by
running as well as ambient temperature.

The humidity you can not remove 100% from the pressurized air.
The only way to remove it is to fill the tire with a 100 % gas .

vraa

so should i ask my dad to screw air and get nitrogen filled tired? cuz i really don't wanna explode or anything.. lol

W0n6_3d4n

no it won't explode, as nightsea says that nitrogenis more stable than oxygen, it uses in the engine to draw more air into the engine therefore more power, the leaner you get the faster your car will be. Engine with nitro can explode because they detonate caused by leaning the engine too much. and lastly, if you do get nitro don't inhale it too much you will get oxygen poisoning. A little sniff is recomended so you can laugh (dentist gas)

ima55r2

This came off the NASCAR site.

Q: Why do NASCAR Winston Cup Series teams put Nitrogen in the tires? What purpose does that serve?

A: We use nitrogen because it's a cleaner air; there's no moisture in it. Moisture builds heat, and when you use compressed air, there's a lot of water in the airlines and air systems, and when that water gets into the tire, it will expand the tire and puts heat into it, and will eventually cause a tire problem.

northbenz

Did you know that the Hindenburgh was supposed to be filled with Helium, not Hydrogen (which unlike Nitrogen and Helium, is super explosive), but there was a refusal to fill it with Hedlium because it was a banned war material and not allowed to be supplied to the Germans.?

opti6600

Argh. The simple minded fool emerges. The Nitro you refer to for engine vroom is Nitrous Oxide. "NO" is useful because it is an oxidizer, meaning that it helps to add pure oxygen to the mixture.

For those of you who remember chemistry, Nitrogen is a noble gas, which means it is very inert. Get a small tank of nitrogen, fill a beaker with nitrogen, and cap it with a glass dish or something. A match put into there will extinguish almost immediately because oxygen is needed for combustion, and nitrogen doesn't burn.

-Jordan

W0n6_3d4n

hey, at least i'm close

opti6600

I was referring to the incredible genius of DNA3D. Yeah, it is good though to see people that can differentiate between nitrogen and hydrogen.

-Jordan