| [ Total Views: 814 | Total Replies: 20 | Thread Id: 6719 ] |
|
|
 jakriz
Wolfsburg Wizard
Posts: 560
Threads: 46
Registered: September 1st, 2002
Member Is Offline
Location: Hicksville
Theme: UltimaBB Pro Blue ( Default )
Mood: 2 headed
|
| posted on May 23rd, 2003 at 05:03 PM |
|
|
Nitrogen filled tyres??
Bob jane are advertising filling tyres with Nitrogen. They say u get a smoother softer ride. It says that the Formula 1 guys are doing it & so
are many other motorsport teams are doing it as well. Has anyone heard of this before???
regards
Jak
Congratulations to Ben Durie for breaking the hillclimb record at Ringwood in his stroker beetle!
|
|
|
555bug
Custom Title Time!
WRX Bug Boy
Posts: 1123
Threads: 79
Registered: August 26th, 2002
Member Is Offline
Location: Brisbane
Theme: UltimaBB Vintage
Mood: turbo charged
|
| posted on May 23rd, 2003 at 05:24 PM |
|
|
yup, guys also do it in their bikes (marathon guys  ) apparently its not
as easily effected by temprature changes. |
|
|
 vw54
Super Administrator
Always Waiting 4 Friday
Posts: 16723
Threads: 378
Registered: August 26th, 2002
Member Is Offline
Location: Sunny Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oval resto ongoing
|
| posted on May 23rd, 2003 at 07:08 PM |
|
|
Yep sure have
Aeroplanes have been doing it for years n years.
But dont ceramic coat them. HAHAHAHAH
Deffinate advantage, keeps yr wheels cooler and more stable.
|
|
|
fish
Wolfsburg Wizard
Posts: 584
Threads: 32
Registered: April 3rd, 2003
Member Is Offline
Location: sunshine coast qld
Theme: UltimaBB Pro Blue ( Default )
Mood: just cruisin
|
 posted on May 24th, 2003 at 05:10 AM |
|
|
with nitrogen you can run the tyres at a lower pressure also. good news on a 4x4. smoother ride. nitrogen does not expand with heat so the tyres stay
at a constant pressure so less wear as well. i.e. your tyres last longer and you should't have to pump them up as often as with just air. to top
them up you have to get the nitrogen guy and his bottle around. usually costs around $60 to fill and $25 to top up. cheers, fish
Drink and drive your a bloody idiot!!! make it home you'r a legend !!!!
|
|
|
Andy
Son of Jim - Creator of Good
Andy's Adventures
Posts: 2818
Threads: 181
Registered: November 5th, 2002
Member Is Offline
Location: Brisbane
Theme: UltimaBB Pro Blue ( Default )
Mood: Happy Man
|
| posted on May 24th, 2003 at 08:16 AM |
|
|
Um, horses for courses guy's. If your after performance, maybe yes, but for a stocker on the street I don't see any benefit.
With properly selected tyres and my very sedate driving style, neither the tyres on be '73 beetle or '77 bus ever get warm, even on long
runs. They get more heat from the tar on a hot day!!
Just my 2 cents worth.
|
|
|
555bug
Custom Title Time!
WRX Bug Boy
Posts: 1123
Threads: 79
Registered: August 26th, 2002
Member Is Offline
Location: Brisbane
Theme: UltimaBB Vintage
Mood: turbo charged
|
| posted on May 24th, 2003 at 01:02 PM |
|
|
I'd think it could be worth the effort if you are racing/hillclimbing. I know that I was running some funky Pirelli's on my civic that
after only about 5 laps of Lakeside were totally stuffed. They were so hot that they would scorch for fingers + the sidewall had gone a nice blue
colour. A change to W1's was the answer for me but perhaps some nitrogen would have save me a set of tyres? |
|
|
speedster356
A.k.a.: Peter Mcleod
Custom Title Time!
Plastic not Classic Racing
Posts: 1624
Threads: 256
Registered: August 25th, 2002
Member Is Offline
Location: CHRIST church NZ
Theme: UltimaBB Pro Blue ( Default )
Mood: Producing boost again in NZ
|
| posted on May 24th, 2003 at 04:16 PM |
|
|
Jak, I'll bring out a G size nitrogen bottle at the next Porsche sprint day and we can all get a dose....for nuffin.
Spyder-WISD 07-09-05 11.6s @ 125 MPH
Speedster-WISD Nats 05 14.4s @ 89 MPH
Jet cruiser-Coogee 22-09-05 900 deg C @ 110,000 rpm
Weaseling out of things is what separates us from the animals....................Except the Weasel.
|
|
|
waltermitty
Custom Title Time!
Legend when my beer goggles are on
Posts: 1993
Threads: 268
Registered: August 29th, 2002
Member Is Offline
Location: Port Macquarie now Yipee!
Theme: UltimaBB Pro Grey
Mood: Hungry for mor
|
| posted on May 24th, 2003 at 04:32 PM |
|
|
Why not some helium it will make your car lighter! Mitchell .
23 windows ...8 too many!
|
|
|
56astro
Custom Title Time!
Posts: 1772
Threads: 74
Registered: August 25th, 2002
Member Is Offline
Location: The Nambucca
Theme: UltimaBB Pro Blue ( Default )
Mood: Pobjoy Powered with twin ignition & soon to be EFI'd
|
| posted on May 24th, 2003 at 05:12 PM |
|
|
Yeah, but ya tyres will squeal!
VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa |
|
|
Bobbles
Casual Dubber
Posts: 28
Threads: 3
Registered: September 7th, 2002
Member Is Offline
Location: Adelaide
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 25th, 2003 at 11:35 AM |
|
|
I had nitrogen put in my tyres at Bob Jane for $6 a wheel. They haven't needed topping up in about 3000k.
I mentioned it on the American Vanagon mailing list and got guffawed off the screen by learned folks who said it was a scam. (I had repeated Bob
Jane's rhetoric that the nitro molecules were larger so wouldn't leak out, and that it didn't expand with heat). I replied that Aussie
nitrogen molecules were bigger than yank molecules (like most things here, Texas, for example, being about the size of the back paddock in an average
Aussie cattle station) and that our nitro molecules, a hardy mob like us, were not bothered by heat. But later, some came back and said they knew of
it, and that the advantage was through not having water vapour in the tyres - that's what expands when it gets hot.
In practice (this is on an 84 wasserboxer camper) I think there have been two changes. First, I think the tyres don't seem to expand so much, so
do not increase in diameter, so she hangs on a bit better in fifth gear up gradients or into headwinds, but doesn't want to roll out past the
cruising speed of 95k so much. Second, perhaps because the engine labours less, I got 18-19 mpg instead of 16-17, in three long trips (each about
1000k) recently.
Ah yes, and when kids ask about the bright red valve covers, I can tell them it means she runs on nitro, man.
Bob
|
|
|
jakriz
Wolfsburg Wizard
Posts: 560
Threads: 46
Registered: September 1st, 2002
Member Is Offline
Location: Hicksville
Theme: UltimaBB Pro Blue ( Default )
Mood: 2 headed
|
| posted on May 25th, 2003 at 01:01 PM |
|
|
Thanks very much for that Bob, most appreciatted.
regards
Jak
http://www.thesamba.com/vw/gallery/index.mv?photo+83328.jpg
Congratulations to Ben Durie for breaking the hillclimb record at Ringwood in his stroker beetle!
|
|
|
Craig Torrens
A.k.a.: Craig Torrens
Scirocco Rare
6 times Australian, 7 times State Hillclimb Class Champion
Posts: 8040
Threads: 347
Registered: January 10th, 2003
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Time to go Salt lake racing, and actually achieve a result.
|
| posted on May 25th, 2003 at 01:37 PM |
|
|
One reason tyres get hot is due to the side walls flexing and creating heat, so pump your tyres up more and you reduce the ability for the tyre to
produce heat.
|
|
|
kafer70
Posts:
Threads:
Registered: January 1st, 1970
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 25th, 2003 at 07:56 PM |
|
|
From someone who works in the aviation Industry nitrogen is used for two reasons one because its not affected as much by temp. and the main reason
nitrogen does not contain water so no corrosion unless this is an issue save your money. |
|
|
1303Steve
A.k.a.: Steve Carter
Scirocco Rare
Posts: 8650
Threads: 564
Registered: August 27th, 2002
Member Is Offline
Location: Sydney, NSW
Theme: UltimaBB Pro Blue ( Default )
Mood: Parrot Heading
|
| posted on May 25th, 2003 at 11:49 PM |
|
|
Hi
I guess that they would also use it aeroplanes because any water in the air in the tyres would freeze at altitude.
1302Steve
|
|
|
vw54
Super Administrator
Always Waiting 4 Friday
Posts: 16723
Threads: 378
Registered: August 26th, 2002
Member Is Offline
Location: Sunny Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oval resto ongoing
|
| posted on May 26th, 2003 at 07:32 AM |
|
|
Aircraft tyres on landing go from frozen to bloody hot in an instant.
with nitrogen, the tyre is kept cooler and theres less chance of a tyre blowing and catching on fire.
|
|
|
mnsKmobi
Wolfsburg Wizard
Posts: 589
Threads: 27
Registered: August 27th, 2002
Member Is Offline
Location: Melbourne
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 26th, 2003 at 04:28 PM |
|
|
Most of the "benefits" of inflating normal road tyres with nitrogen appear to relate to tyres inflated with air losing pressure as the
oxygen leaks out and the deterioration to the carcass from water/oxygen reducing the number of times they can be retreaded.
Maybe an issue for a big commercial fleet, but for your ordinary car it's just got to be another way of parting you from your money! 
|
|
|
Phil74Camper
Son of Jim - Creator of Good
Head in the Clouds
Posts: 2703
Threads: 193
Registered: August 28th, 2002
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 26th, 2003 at 06:28 PM |
|
|
Especially since normal air is 78% nitrogen anyway.
Nitrogen has an atomic weight of 14 and oxygen is 16, so nitrogen is smaller than oxygen. Nitrogen gas in the atmosphere is diatomic - two atoms of
nitrogen - so nitrogen actually weighs 28. Oxygen is the same - 32. Therefore, a mixture of the two (air) is heavier than pure nitrogen, which should
be EASIER to heat up. All gases expand as they are heated - that is a fundamental law of nature called Boyle's Law.
Yes it's the removal of water vapour that aircraft have a special mix in their tyres. Paying $$ to do this in your road car...hmmm.
|
|
|
Woozy
Seriously Crusin Dubber
Posts: 118
Threads: 13
Registered: December 4th, 2002
Member Is Offline
Location: Perth
Theme: UltimaBB Pro Blue ( Default )
Mood: Wahoooooooo!!!!
|
| posted on May 26th, 2003 at 10:26 PM |
|
|
You can get an increase of up to 30% extra tread life from normal road tyres by using nitrogen instead of normal compressed air.
This is due predominately to the reduced tendancy for N2 to leak ie ensuring the tyres maintain constant pressure and also to the fact that the tyres
do not heat up as much and therefore remain harder decreasing the amount of wear on them
:vader
Everyone needs something to belive in !
I belive i shall have a beer !
|
|
|
70AutoStik
Insano Dub Head
Posts: 730
Threads: 18
Registered: August 30th, 2002
Member Is Offline
Location: Dandenong. Victoria
Theme: UltimaBB Pro Blue ( Default )
|
| posted on May 26th, 2003 at 11:46 PM |
|
|
No offence, guys, but some of you seem to be quoting advertising... Nitrogen does expand with heat could leak through any hole that would allow air
and has slightly lower conductivity than air (so it would actually hold more heat - if you were able to measure it.) Nitrogen is used in aircraft
because it contains no water, it is inert (the heat in aircraft tyres can cause them to react with air) and it is a convenient, cheap source of such a
gas. There were also theories of air reacting with rubber at extremely low temperatures, causing leakage - but I'm not sure they were ever
proved. Try not to fall for "Volvo Theory."
|
|
|
helbus
A.k.a.: Pete S
Super Administrator
Mad fabricator, paint and body
Posts: 7386
Threads: 312
Registered: September 1st, 2002
Member Is Offline
Location: In the garage chopping cars into bits
Theme: UltimaBB Pro Blue
Mood: In the thinking chair
|
| posted on May 27th, 2003 at 11:25 PM |
|
|
Hmmm well if air is 82% nitrogen, then in my opinion that's enough for me. It may give the edge for formula one or superbikes, but I would prefer
some beer for my money.
|
|
|
56astro
Custom Title Time!
Posts: 1772
Threads: 74
Registered: August 25th, 2002
Member Is Offline
Location: The Nambucca
Theme: UltimaBB Pro Blue ( Default )
Mood: Pobjoy Powered with twin ignition & soon to be EFI'd
|
| posted on May 28th, 2003 at 09:49 AM |
|
|
<scratching head>
Why would nitrogen NOT leak from a tyre where comp. air would?
Do ya get a set of steak knives with the fill-up!
VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa
|
|
|
pyr0
Compulsive Aussie Vee Dubber
flame-on
Posts: 4457
Threads: 123
Registered: March 26th, 2003
Member Is Offline
Location: C'town sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: why work when you can surf ?
|
| posted on May 28th, 2003 at 10:35 AM |
|
|
plus suposidly the nitrogene tyres dont kneed filing up as often and also "allegedly" dont leak as easily |
|
|
Craig Torrens
A.k.a.: Craig Torrens
Scirocco Rare
6 times Australian, 7 times State Hillclimb Class Champion
Posts: 8040
Threads: 347
Registered: January 10th, 2003
Member Is Offline
Location: Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Time to go Salt lake racing, and actually achieve a result.
|
| posted on May 28th, 2003 at 08:19 PM |
|
|
so if your VW "flies" then use it !!!!!
just a bad pun !
|
|
|
vw54
Super Administrator
Always Waiting 4 Friday
Posts: 16723
Threads: 378
Registered: August 26th, 2002
Member Is Offline
Location: Sunny Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oval resto ongoing
|
| posted on May 28th, 2003 at 08:24 PM |
|
|
very bad Craig but half funny
|
|
|
.JPG "Avatar")
