nitrogen as apposed to air
Discussion
Do you lower your back seat too Brad?
Sorry, just being silly - there's that whole p*sstaking thing about cars being "quicker" on the 1/4 mile if you lower the back seat.
I've got nitrogen in my tyres, purely because that's what my tyre fitter guy uses (a bloke called Gary - Nitro Tyres based in Cowie). Absolutely no difference IME, although technically it should mean more stable tyre pressures as you don't get the same fluctuation in temperature from hard use (pure nitrogen is less affected by temperature variation than air - I think...).
Sorry, just being silly - there's that whole p*sstaking thing about cars being "quicker" on the 1/4 mile if you lower the back seat.
I've got nitrogen in my tyres, purely because that's what my tyre fitter guy uses (a bloke called Gary - Nitro Tyres based in Cowie). Absolutely no difference IME, although technically it should mean more stable tyre pressures as you don't get the same fluctuation in temperature from hard use (pure nitrogen is less affected by temperature variation than air - I think...).
a11y_m said:
Do you lower your back seat too Brad?
Sorry, just being silly - there's that whole p*sstaking thing about cars being "quicker" on the 1/4 mile if you lower the back seat.
I've got nitrogen in my tyres, purely because that's what my tyre fitter guy uses (a bloke called Gary - Nitro Tyres based in Cowie). Absolutely no difference IME, although technically it should mean more stable tyre pressures as you don't get the same fluctuation in temperature from hard use (pure nitrogen is less affected by temperature variation than air - I think...).
Sorry, just being silly - there's that whole p*sstaking thing about cars being "quicker" on the 1/4 mile if you lower the back seat.
I've got nitrogen in my tyres, purely because that's what my tyre fitter guy uses (a bloke called Gary - Nitro Tyres based in Cowie). Absolutely no difference IME, although technically it should mean more stable tyre pressures as you don't get the same fluctuation in temperature from hard use (pure nitrogen is less affected by temperature variation than air - I think...).
i was in the middle of removing the back seats on Si's last run...until I asked myself what the f
k I was doing. Lowering the back seats though, never thought of doing that though
yellowbentines said:
air is nearly 80% nitrogen anyway, I doubt you'd notice any difference whatsoever.
Agreed, I have nitrogen in the evo, wouldn't bother again. I suppose for track days it might be worth it as one poster already said better thermal properties perhaps? For day to day use, well, useless 
Chuck328 said:
yellowbentines said:
air is nearly 80% nitrogen anyway, I doubt you'd notice any difference whatsoever.
Agreed, I have nitrogen in the evo, wouldn't bother again. I suppose for track days it might be worth it as one poster already said better thermal properties perhaps? For day to day use, well, useless It's nonsense (or King's new clothes) both air and nitrogen will conform to Boyle's law, even those who paid no attention in physics will have heard of PV/T is a constant. So air (which as has been said is 4/5 nitrogen) and nitrogen will expand and contract exactly the same amounts according to the temperature of the tyre. The only reason this has caught on is because the F1 chaps use it (read the link which has been posted) no other reason...
The F1 guys use it because of fire regs prohibiting the use of compressed air cylinders in the pit lane to power their hand tools.
They use high pressure nitrogen cylinders for this which also come in handy for inflating the tyres.
By the way a leak of nitrogen in an enclosed space will displace oxygen and cause you to die very quickly. Not the sort of gas you really want to play around with.
They use high pressure nitrogen cylinders for this which also come in handy for inflating the tyres.
By the way a leak of nitrogen in an enclosed space will displace oxygen and cause you to die very quickly. Not the sort of gas you really want to play around with.
A bunch of us Porsche guys asked a man from Michelin about this when he came to give us a talk on tyres.
The man from Michelin, he say “hogwash”. It’s of no appreciable benefit.
Technically, pure nitrogen will leach out through the tyre rubber a tiny bit slower than regular air. That said, it would take years for even regular air to leach out enough to make any measurable difference to your tyre pressure.
So there you go. Some of the regular trackgoers amongst our group remained unconvinced and continue to put nitrogen in their tyres. Take the advice or leave it, up to you.
The man from Michelin, he say “hogwash”. It’s of no appreciable benefit.
Technically, pure nitrogen will leach out through the tyre rubber a tiny bit slower than regular air. That said, it would take years for even regular air to leach out enough to make any measurable difference to your tyre pressure.
So there you go. Some of the regular trackgoers amongst our group remained unconvinced and continue to put nitrogen in their tyres. Take the advice or leave it, up to you.
a11y_m said:
Exactly. This almost-exact arguement was discussed on another forum I use recently - to get the full (but still small) benefit from pure nitrogen in tyres, we'd have to start with the tyres as a vaccuum to remove all traces of "air".
Massive placebo effect for some though I reckon
but what about those awesome green dust caps you get? they must be worth a second or 2! Massive placebo effect for some though I reckon
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