Jump to content
SAU Community

Recommended Posts

I saw a post about tyre pressure the other day and it remided me to go and get nitrogen put in my tyres.

I had it done at Bob Jane..it cost $20..I have had it in my cars before.There are a few benifits to be had by using Nitrogen rather than standard old air. Nitrogen is a denser gas.You dont need to check your pressure as it remains constant as it is not as affected by temp changes.Being more dense it may give slighly better ride and handleing ..... to me..the car feels more solid with the Nitrogen but not hard like it does if you put a lot of pressure in with air....with any luck it will help with fuel economy cos thats the only thing that I dont like about my Stagea...anyway if you dont change your pressures much you may want to give it a try...oh yeh having nitrogen in the tyres also seems to stop the tyes from flatening on the bottoms which tends to happen if you dont drive the car a lot.

Scott.

One more thing.. cos I know somone will ask..yes you can mix air with the nitrogen if you need to.

Link to comment
https://www.sau.com.au/forums/topic/122362-nitrogen-in-my-tyres/
Share on other sites

I think the benefits are largely inconclusive for regular street driven cars, nothing that regular maintenance and checking with compressed air can't prevent. Compressed air is about 80% nitrogen anyway.

http://www.toyo.com.au/tech_info11.html

http://www.bridgestone.com.au/tyres/produc...re/nitrogen.asp

http://www.racq.com.au/cps/rde/xchg/racq_c...es_ENA_HTML.htm

  • 2 weeks later...

I wouldn't think the benefits would be worth $20.

As you say, nitrogen has less expansion/contraction with temp, but with the small volume in a car tyre, it wouldn't be that noticable.

They use nitrogen in aircraft tyres because they have a much larger volume and it is at a higher pressure. Also air contains oxygen, so if it is used in an aircraft tyre, it can be bad if a brake fire occurs.

If you can get nitrogen for free, go for it. But I wouldn't pay $20 for it. The main advantages of it are lost on road cars.

  • 3 months later...

The usage of nitrogen in tyres on race cars that I have heard of is to allow the use of a cold pressure reading as a starting point to achieve a desired hot running pressure. The pressure of the tyre can vary between 3 and 4 pounds between cold to hot due to the water in the air. This is alluded to in the toyo link above when they talk of `dry air'. Thus the use of nitrogen eliminates this aspect of variation in race preparation so that grey matter can be spent elsewhere.

raz0r was correct, air is made up of ~80% nitrogen anyway. Then there's something like ~18% oxygen and a couple other gases.

So whilst there is a difference, the difference between pure nitrogen and normal air probably isn't as much as it sounds. :P

Compresses air isnt compressed air but is compressed air.

that sure as hell made it as clear as mud. what the? is it supposed to be as follows?

compressed air isn't compressed OXYGEN but is compressed air?

that would make more sense don't ya think?

have used nitrogen in race cars i have worked on for a number of years now. we take a big bottle of it to race meets instead of the compressor. Yes it is a little more stable than air so less pressure change from cold tyre to hot tyre but there is still a change. we even use it in the on board jack system. we find it's small advantage is a slightly more stable tyre pressue over many laps. for $20 a fill I wouldn't bother.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • This looks great! Awesome to have the 5 speed with an LSD in this. The Recaro's look like SR2's or SR3's. It's a shame they've been retrimmed as they would have looked sweet in their original colours. I think I'd want my agent to be a little more up front and informative too. I've never imported but I reckon it would make me a little nervous, so the more info the better.
    • Thanks for doing that Duncan! Makes you a good person in my books. We don't get kangaroos or wombats here. But we have bats and it's similar. AFAIK it's often the mums with a baby attached that get hit because they drop lower when starting from a tree. If you hit an animal, check on it. https://www.ifaw.org/au/resources/wildlife-rescue-app An app to get the closest wildlife rescue contact.
    • My dream is also to have a proper hoist, but I don't think it will ever happen. My quickjack is probably as close as I'll ever get, it really is very good though. 
    • Yeah we keep on in the dailies, it is pretty poor how many animals get hit and the driver leaves without checking....have saved a couple of little ones over the years. Bit of a gruesome job though, pouches generally need to be cut open because they are so tight and often the joey doesn't realise mum is gone so they are still locked onto the teat. I checked the modules in front of the DS wheel where an oil cooler should go.... There is the radar unit - that can go for race use) One of the 2 HX water pumps, the silver cylinder. That needs to be kept but might be able to be relocated But the bad news, the big computer mounted vertically in front of the wheel (blocking any potential air exit) is the electric steering computer. That is required until/unless i do a hydraulic steering conversion, and in CAD based modern car design it is not like I can just pop a big unit like that somewhere else (plus the loom would be too short anywhere else too). So, the passenger side is OK to clear out (just use a smaller washer reservoir, potentially elsewhere), but the DS no beuno
    • Well, all the best with the new camry It was interesting to hear about the UK process, it is generally a lot more streamlined here with a shipping agent looking after all the import side (noting the exact final price can still be a surprise.....) and I've used a few different brokers on the japan (or US) side, and never had any trouble with any of them....luck of the draw I guess. You mentioned you didn't get the auction sheet (understandable since you bought it from a dealer, not auction), but I always try and get hold of that because they are pretty thorough. I've imported 2x R grade vehicles over the years and both were fine, repairs in Japan are pretty thorough compared to here in Oz.
×
×
  • Create New...