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Nitrogen In Tyres

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GTSBoy Grand Master

GTSBoy

Posted
Posted

Yuh, but if you have to pay anything for it, you are being ripped off.

Both N2 and O2 are as near as damnit ideal gases. Together they make up more than 99% of typical air. The majority of the remainder is water vapour, which is less of an ideal gas. The difference in behaviour between air filled tyres and N2 filled tyres is really small. Justified in racing classes or in supercars perhaps, but hardly justified in normal cars - even super duper hot wheels brrrrm brrrm vrrmpsh like Skylines.

MrStabby Grand Master

MrStabby

Posted
Posted

Nitrogen has a lower coefficient of expansion than air, so the pressure inside the tyre doesn't change as much as it heats and cools. SFA difference on the street. On the track i guess it means you can start cold with a little more pressure, so your cold tyres aren't as mushy as they come up to temp.

GH05T Grand Master

GH05T

Posted
Posted

If you do put it in and you're somewhat disappointed at the result, try sitting on the ground with your legs either side of the tyre and push the valve right in: you might get a laugh out of it :)

lol wut?

T04GTR Grand Master

T04GTR

Posted
Posted

Can't hurt, it just means you get less affected by changes in tire heat

not tru

during many race seasons i had a driver who insisted on nitrogen. so we abliged, the pressure change was markedly higher than air from a compressor.

the ONLY advantage is being able to have repeatable results. having the same air in the tyre each race. it alows for a quicker set up being able to predict a pressure for a given tyre temp. humidity is the factor with normal compressed air. since the atmosphere is 78% nitrogen anyway.

but the fact remains the pressure would raise more with n2.

if anyone has some hard data to sugest otherwise. ie: go out 30 psi with a ambiant tyre temp and come in with 30 psi with a 90 deg c tyre i will donate a leg..

n2 in a road car is the biggest WANK ever. and a complete waste of time. and the n2 has to be from a bottle. and to remove any moisture from the air in the tyre already is imposible. mayby if it was filled and deflated and vacumed 100 times you might get 100%n2 in there.

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