You should upgrade or use an alternative browser.
Inflating tyres with nitrogen
- Thread starter eey_ore_9
- Start date
In fact, You won't need much topping up as N2 holds it's pressure over a prolonged period, so periodically returning to where you got the gas in the first place is your best bet and you can still top with air if you're stuck. It won't do any harm.
Regards,
Clive.
PC Exeter []ORIGINAL: eey_ore_9
Where do you get your tyres filled with nitrogen?
Chris_in_the_UK
New member
Fred Hindle
New member
To me it is a marketing con based on what they do in F1.
Cheers,
Not sure that's correct now Clive.BTW: F1 haven't used nitrogen in their tyres for many years.
Formula One tyres are normally filled with a special, nitrogen-rich air mixture ?
Whether or not this is 100 percent nitrogen I'm unsure.
Personally I cannot see its worth the trouble unless you're tracking the car.
F1 regulations require tyres to be inflated either with air or nitrogen, but in practice, Pirelli use dry air stored in bottles.
No need to track a car for nitrogen to be advantageous. I haven't needed to top up my tyre pressures for 3 years! []
Regards,
Clive.
With nitrogen fill the pressures are constant on road and on track.
The question therefore is whether higher than normal pressures when running is good/bad/beneficial for grip, wear and tyre life?
chriscoates81
New member
ORIGINAL: ralphmusic
With air in the tyres, I see around 10 psi increase in tyre pressures when running quickly on road or in even warm weather.
With nitrogen fill the pressures are constant on road and on track.
The question therefore is whether higher than normal pressures when running is good/bad/beneficial for grip, wear and tyre life?
I suppose that depends on what the manufacturer did the initial setup with. If porsche used air they might have factored in a specific psi for a tyre knowing the pressure will increase during use. Filling with nitrogen removes the increase so the tyre could end up being under inflated, or am i reading to much into this?
I think the variation in pressure between Nitrogen filled tyres and those filled with air is probably only due to the moisture content of the gas in the tyre, which will have an effect on the overall pressure in the tyre as temperature changes (hence the comment that the F1 may use dry air rather than Nitrogen).
Having read a little bit about it and it seems that advantages of Nitrogen are:
1) The larger gas molecule means that gas escapes the tyre more slowly and therefore your tyres will stay inflated for longer (not a problem if you check your tyre pressure regularly).
2) Reduced corrosion due to reduced moisture and, I guess, reduced oxidation due to absence of oxygen. I'm not convinced that this is terribly reliant to alloy wheels.
3) Reduced variation in pressure due to moisture, this will be very dependent upon the level of moisture in the air when you pump up your tyres.
Personally I think it's a money spinner that the tyre companies use to increase your tyre bill, it's probably just as cheap for them to keep a Nitrogen bottle than pay for the maintenance of a pump. I'm not sure I could ever tell the difference, but that's my opinion, I could be wrong.
Most of us using it are convinced it's better, but its use is not mandatory.
Don't use it if you're convinced a.) it's a rip off or b.) it's all a load of nonsense or c.) You don't use your car in such a way for it to make any difference. []
Regards,
Clive.
eey_ore_9
New member
Having read a little bit about it and it seems that advantages of Nitrogen are:
1) The larger gas molecule means that gas escapes the tyre more slowly and therefore your tyres will stay inflated for longer (not a problem if you check your tyre pressure regularly).
2) Reduced corrosion due to reduced moisture and, I guess, reduced oxidation due to absence of oxygen. I'm not convinced that this is terribly reliant to alloy wheels.
3) Reduced variation in pressure due to moisture, this will be very dependent upon the level of moisture in the air when you pump up your tyres.
Personally I think it's a money spinner that the tyre companies use to increase your tyre bill, it's probably just as cheap for them to keep a Nitrogen bottle than pay for the maintenance of a pump. I'm not sure I could ever tell the difference, but that's my opinion, I could be wrong.
These are some of the reasons I want to carry on having my tyres filled with nitrogen, I will be taking the turbo on track also & it will be beneficial for me to use pure nitrogen or top up of air as long as I know I've got the maximum amount of nitrogen I can get into them in the first place!
Nitrogen has a higher boiling point than air so is better at keeping constant temps when tracking
It's easy enough to make the filling hoses in fact I can use the filling whips from my scuba diving equipment, so looks like il be getting nitrogen bottle fills as we'll trimix when going diving
At least I know where to get some for now, thanks guys.
thirteeneast
New member
Its complete BS aimed at people with more money than sense.
I never top up my tyres either because the schrader is done up!.
Do people ever check there done up?.
£0.00 AIR +1
ORIGINAL: thirteeneast
I never top up my tyres either because the schrader is done up!.
Then you are seriously in danger of running with progressively decreasing pressures. The valves primary purpose isn't for letting the air out - it's for putting it in.
What do mean by "done up"? The only thing you do up is the dust cap - and the dust cap doesn't "do up" anything, nor help to retain the pressure in the tyre. It's just to do what it says - keep dust and debris away from the valve mechanism.
http://www.nitrofill.com/documents/Nitrogen-Tire-Dissertation.pdf
As for never having to top up - I always thought tyres are permeable to gases - not a lot - but still permeable. And if reducing the amount the pressure increases with temperature is the concern, then getting rid of the water vapour is the main issue, as I understand it.
Posts made and opinions expressed are those of the individual forum members
Use of the Forum is subject to the Terms and Conditions
Disclaimer
The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.
Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.
When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.
Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.
Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.