Nitrogen Tyres
Discussion
Isn’t the argument that nitrogen molecules are larger than oxygen, hydrogen, helium and all the other mucky muck in air causing slower gradual decompression as the particles ‘fall’ through the rubber of the tire plus the point made above about thermal expansion which might be more likely to have some basis in fact?
In my experience total b
ks of course.
In my experience total b
ks of course. Only benefit of nitrogen is that the tire pressure doesn't drastically change when the tires get hot. If you're not really pushing the car, it's a waste of money. If anyone tells you there's a drastic benefit to using nitrogen in the tires of a street car that doesn't see either very spirited driving or track days, they're taking the piss. (Did I say it right that time? lol)
Bobajobbob said:
Isn’t the argument that nitrogen molecules are larger than oxygen, hydrogen, helium and all the other mucky muck in air causing slower gradual decompression as the particles ‘fall’ through the rubber of the tire plus the point made above about thermal expansion which might be more likely to have some basis in fact?
In my experience total bks of course.
The rubber being more permeable to oxygen than it is nitrogen is one argument, but the effect is negligible. Topping up the lost oxygen with air soon reduces the amount of oxygen in the tyre anyway.In my experience total b
ks of course. The 'problem' with using air is that most air-supplies are not dry, so the air contained in the tyre contains water vapour that increases the sensitivity of pressure to temperature.
telum01 said:
Only benefit of nitrogen is that the tire pressure doesn't drastically change when the tires get hot. If you're not really pushing the car, it's a waste of money. If anyone tells you there's a drastic benefit to using nitrogen in the tires of a street car that doesn't see either very spirited driving or track days, they're taking the piss. (Did I say it right that time? lol)
No, you said TIRE....
I was told Nitrogen keeps a more constant tyre pressure than air, hence a better option. Don’t think tyre noise comes into it as that is due to tyre width and tread.
My V12V has always had nitrogen in the tyres, never paid for it, and never had to check or top up pressures in over 7 years!
My V12V has always had nitrogen in the tyres, never paid for it, and never had to check or top up pressures in over 7 years!
If they suck all of the air out first and fill with 100% dry nitrogen, then game on. On track the tyres would not increase in pressure nearly as much. Sadly when the tyre is fitted it is full of air that has water vapour and it is this that will increase the pressure with heat. As others have said, for the road there is little difference.
Cockernee said:
If they suck all of the air out first and fill with 100% dry nitrogen, then game on. On track the tyres would not increase in pressure nearly as much. Sadly when the tyre is fitted it is full of air that has water vapour and it is this that will increase the pressure with heat. As others have said, for the road there is little difference.
If it's water vapour that's the real problem then what would be the problem with using dry air? I have hazy memories of school of using Sulphuric Acid to dry air...What could go wrong?!
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