Nitrogen in your tyres - Good idea ?

[XR6Naranja]

Originally Posted by prasac

you need to be very careful when using helium, compressor didn't work one day so we pumped in helium. around 1/2 track the car started to lift, was the best half track it ever done. however it floated over the beams at the end of the track and didn't register a 1/4 mile time

Not sure if you're serious, but if you are, sounds rather iffy driving on light tyres lol, pull some decent burnouts I'd suppose?

[NET351]

I was sucked in by the Nitrogen thing a while back when I had a car with 17" low profile tyres. I ended up just filling them with compressed air after a while because it was inconvenient to go to the tyre shop every time the tyres needed inflating. If you have a compressor at home, keep checking them yourself. The main thing for tyre life and economy is pressure, keep it consistent and you're laughing.

[XR6Naranja]

Feel like I need to fill my tyres right now considering my horrible fuel usage and haven't checked them since fitting over 2 months ago >.<

[GCRXR6]

Originally Posted by irish2

Nitrogen is a gas and just like all gasses when they are 'excited' by heat they expand. There is not an element within the periodic table that does not expand when heated.

Yes Irish2 .. Two laws about gases, one called Charles Law, states that as a gas is heated it's volume increases. The other, Boyles Law, states that as the volume of the container is decreased, pressure increases, or as volume in a given size container increases, so does pressure.

[prasac]

Originally Posted by TheOrangeSpider

Not sure if you're serious, but if you are, sounds rather iffy driving on light tyres lol, pull some decent burnouts I'd suppose?

nah i wasn't serious, just for sh!ts n giggles.

you see alot of people do alot of things, for a street car there is practically no benefit. circuit cars etc you might see a small benefit.

if it's not done properly then there is no point. you need to inflate/deflate the tyres, 3 or 4 times at least to get as much of the oxygen out, get all the fluids etc out.

for $30 buy the missus some flowers, there is more gain out of that as it won't just be your tyres that get ''pumped up'' that day

[Rodge]

^^ Too funny

Seems like the main benifet is holding pressure longer BUT as I'm allready in the life-long habit of checking tyre pressures every few weeks I'll save the money and take my wife out to lunch.

[prasac]

Originally Posted by Rodge

^^ Too funny

Seems like the main benifet is holding pressure longer BUT as I'm allready in the life-long habit of checking tyre pressures every few weeks I'll save the money and take my wife out to lunch.

as someone mentioned even if you do get nitrogen still check them. it's when you start getting too comfortable and thinking things are sweet when problems can/start happening.

[kawalsky19]

Nitrogen is more stable, it is not affected as much by temperature change that is why it is used to fill aircraft tyres

[aussie muscle]

Originally Posted by pottery beige

heliums the next big thing.. reduces un sprung weight and improves handling.....

probably, even though the weight difference will be like 1%

[Fiesta_Man69]

Nitrogen just inflates the tyre dealer's profit margins. Outside a serious track vehicle it is won't make a difference - bit like a rear spoiler on an Excel.....

[XR6Naranja]

Originally Posted by aussie muscle

probably, even though the weight difference will be like 1%

0.01 off your PB down the drag strip, maybe? lol

Originally Posted by prasac

nah i wasn't serious, just for sh!ts n giggles.

you see alot of people do alot of things, for a street car there is practically no benefit. circuit cars etc you might see a small benefit.

if it's not done properly then there is no point. you need to inflate/deflate the tyres, 3 or 4 times at least to get as much of the oxygen out, get all the fluids etc out.

for $30 buy the missus some flowers, there is more gain out of that as it won't just be your tyres that get ''pumped up'' that day

Haha that's fair enough, but come on $30 flowers? economy is tough enough as it is lol.

[prasac]

Originally Posted by TheOrangeSpider

Haha that's fair enough, but come on $30 flowers? economy is tough enough as it is lol.

steal 'em then if u have to. hospitals are a good source of free flowers/chocolates etc if the money isn't tight and ur missus isn't worth spending $30 on might be time to look for a new one

[Chilliman]

I have to agree with those expressing concerns about still checking tyre pressures reguarly.

I was in the habit of reguarly checking trye pressures on the wife's Subaru Liberty, until I bought new tyres and the tyre dealer talked me into filling the tyres with Nitrogen - he threw it in for free as I was buying some pricey tyres (I never skimp on rubber).

As he had explained to me that I would no longer need to reuarly check pressures, only bring it in for a check/top-up in a few months - I got lazy and stopped checking the tyre pressures.

Then one weekend, the wife and I decided to go for a bit of a drive down south, and as always on longer trips I checked the tyre pressures - they had dropped from 33 to 29 (kPA/PSi?).

Now I check it reguarly, like before.

[ebxr8240]

Ahahahah gives you a funny voice too....

[GCRXR6]

Originally Posted by Chilliman

I have to agree with those expressing concerns about still checking tyre pressures reguarly.

I was in the habit of reguarly checking trye pressures on the wife's Subaru Liberty, until I bought new tyres and the tyre dealer talked me into filling the tyres with Nitrogen - he threw it in for free as I was buying some pricey tyres (I never skimp on rubber).

As he had explained to me that I would no longer need to reuarly check pressures, only bring it in for a check/top-up in a few months - I got lazy and stopped checking the tyre pressures.

Then one weekend, the wife and I decided to go for a bit of a drive down south, and as always on longer trips I checked the tyre pressures - they had dropped from 33 to 29 (kPA/PSi?).

Now I check it reguarly, like before.

That's right Chilliman, tyres leak due to poor seal, leaking valves, puncture etc. That's why we must check them on a regular basis.

[GCRXR6]

Originally Posted by ebxr8240

Ahahahah gives you a funny voice too....

Nitrogen doesn't give you a funny voice ebxr824. That's helium your thinking about. A slipped wheel brace if you stand in the wrong position tigntening a wheel nut will also give you a funny voice .. and runny eyes.

[2011G6E]

Aircraft tyres are subject to a little more change of extremes of temperature than car tyres...there's a good solid reason why plane tyres have nitrogen in them...there's literally no reason to put it in your street car apart from to lighten your wallet and fill the coffers of the guy who talked you into it...

[svo supporter]

Originally Posted by Nikked

Exactly....its the moisture content in the air we breath creates the unstable environment in the tire...


.

The tyre already has air in it, as soon as it is fitted. So nitrogen ain't going to remove it is it?

[svo supporter]

Originally Posted by GCRXR6

That's right Chilliman, tyres leak due to poor seal, leaking valves, puncture etc. That's why we must check them on a regular basis.

Tyres by nature loose pressure. Some more than others. Not necessarily due to these other reasons.

[svo supporter]

Originally Posted by kawalsky19

Nitrogen is more stable, it is not affected as much by temperature change that is why it is used to fill aircraft tyres

Aircraft tyres are changed more reguarly than normal road tyres.

[svo supporter]

Originally Posted by prasac

if it's not done properly then there is no point. you need to inflate/deflate the tyres, 3 or 4 times at least to get as much of the oxygen out, get all the fluids etc out.

UUMMM, to do it properly, you need to suck the tyre hard against the rim, which is impossible.

Air is ALWAYS going to exist within the enclosed tyre area, no matter if you inflate and deflate it 50 million times.

[data_mine]

Fit the tyre in an pure nitrogen environment.

[Nikked]

whoa...L2multiquote....

Originally Posted by svo supporter

The tyre already has air in it, as soon as it is fitted. So nitrogen ain't going to remove it is it?

No, but you can get a tire fitted using nitrogen...and the point still stands that the moisture content of air creates a greater variable...

But, still meaningless, as your car tire wont be effected by the heat variables..

Originally Posted by svo supporter

Aircraft tyres are changed more reguarly than normal road tyres.

What this has got to do with keeping a aircraft's tire pressure stable during one flight i dont know...

[BHDOGS]

rather then nitrogen in your tyres just by a plane no need to worry then get ur moneys worth.

[flappist]

Originally Posted by svo supporter

Aircraft tyres are changed more reguarly than normal road tyres.

No they are not. If you want to compare like with like compare a car tyre to a light aircraft which can have the same tyres for years and years.

If you want to compare to heavy jets then compare it to 100-500 tonne land vehicles.

[Murph-51]

every 25 landings or so they re tread a tire on a 737

[flappist]

Originally Posted by Nikked

What this has got to do with keeping a aircraft's tire pressure stable during one flight i don't know...

Why nitrogen is used is aircraft tyres:

1) Very low water levels, even light aircraft can get up to 10,000 ft when the air temp is below 0 which would cause any water to freeze and then thrash around inside the tyres during landing.

2) Nitrogen is inert and reduces degradation inside the tyre from extreme temp variations especially in heavy landings. If they tyres burst it is better to not have a lot of compressed hot oxygen available.

As the tyres do not turn in flight they are only really subject to the outside air temps and outside pressure.

[flappist]

Originally Posted by Murph-51

every 25 landings or so they re tread a tire on a 737

How long do tyres last on 80 tonne trucks doing 300km/h?

[Dr Smith]

Originally Posted by flappist

How long do tyres last on 80 tonne trucks doing 300km/h?

True, or imagine a 400+ tonne load with Vr at 320+km/hr

Going back to the question, I had new tyres fitted on a van and nitrogen used, now done over 53,000km and tyre pressures have remained stable the whole time, only bothered to top up 3 times and less then 5lbs needed iirc. Tyres pumped to 40-45lbs.

[Moby Vic]

I use about 80% nitrogen in my tires (that's regular air).