Nitrogen?
09-04-2007, 02:14 AM
#16
Instructor
Join Date: Jul 2006
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
The problem with nitrogen filled tires is that very few vendors carry it. If you top up the tire with air you dilute/lose the benefit. If you keep toping with air you can get an imbalance between tires, which isn't good. Where I live there's only one place that uses Nitrogen, they use the pretty green caps so people know but what do you do when its low, drive it there?
Most people I know that drive 928's tend to wear out tire tread rather than watch them fail due to constant expansion/contraction of the sidewall. Maybe if your only driving the car on occasion it might be a good idea, but if you have to add air regularly it gets inconvenient fast. As well, for those not aware there is a difference between N that is sold by a minority of tire vendors and the N2O that Mark Kibort runs in his tires...(smiling)
Sorry I just had this thought of Mark being 300 meters from the finish line, his NOS bottle empty and deciding to drain the tires for just that "wee bit a xtra boost"
What a Finish
Mark
Most people I know that drive 928's tend to wear out tire tread rather than watch them fail due to constant expansion/contraction of the sidewall. Maybe if your only driving the car on occasion it might be a good idea, but if you have to add air regularly it gets inconvenient fast. As well, for those not aware there is a difference between N that is sold by a minority of tire vendors and the N2O that Mark Kibort runs in his tires...(smiling)
Sorry I just had this thought of Mark being 300 meters from the finish line, his NOS bottle empty and deciding to drain the tires for just that "wee bit a xtra boost"
What a Finish
Mark
09-04-2007, 06:36 AM
#17
Pro
Thread Starter
Mark (Kibort)
Please see my original post. I don't dispute the advantages of Nitrogen in a track car. (And even though you are a recognised authority on NOS I don't really believe you use it in your tyres!)
Luck
Colin. 89GT
PS. The helium is a joke too.
Please see my original post. I don't dispute the advantages of Nitrogen in a track car. (And even though you are a recognised authority on NOS I don't really believe you use it in your tyres!)
Luck
Colin. 89GT
PS. The helium is a joke too.
09-04-2007, 12:18 PM
#18
Rennlist Member
Colin,
Why dont you believe i use NOS in my tires?
i get 10lbs of it in a bottle for $40 and it lasts all season. for cleaning rotor holes after sessions and filling tires, its much nicer than using the electric pumps. i can even run air tools for those hard to crack nuts.
I use it to top off the tires when finding the right pressures at the track. Im not concerned with the 2 lbs of pressure growth compared with using pure nitrogen or even just NOS. I account for it and come in with pressures always in the 1lb range of goal.
on a street car the ONLY difference would be on how fast it leaks out compared to regular air. I think its all pretty silly. especially, since im sure NO ONE would really purge the street tires, and repeat with Nitrogen to get all the "air" out of them, as to take advantage of the qualities of NOS. I forgot my chemistry, but isnt air made up of separate molecules of O2 and Nitrogen? (not a compound like NOS) and then, is the Nitrogen atom larger than the the 2 oxygen atoms stuck together, OR all 3 in a compond like NOS? so, wouldnt NOS have the biggest molecule and leak less? either way, i dont see any leaking of any of my tires for the months they sit. usually the tire or the rim, or bead determine this i would think.
mk
Why dont you believe i use NOS in my tires?
i get 10lbs of it in a bottle for $40 and it lasts all season. for cleaning rotor holes after sessions and filling tires, its much nicer than using the electric pumps. i can even run air tools for those hard to crack nuts.
I use it to top off the tires when finding the right pressures at the track. Im not concerned with the 2 lbs of pressure growth compared with using pure nitrogen or even just NOS. I account for it and come in with pressures always in the 1lb range of goal.
on a street car the ONLY difference would be on how fast it leaks out compared to regular air. I think its all pretty silly. especially, since im sure NO ONE would really purge the street tires, and repeat with Nitrogen to get all the "air" out of them, as to take advantage of the qualities of NOS. I forgot my chemistry, but isnt air made up of separate molecules of O2 and Nitrogen? (not a compound like NOS) and then, is the Nitrogen atom larger than the the 2 oxygen atoms stuck together, OR all 3 in a compond like NOS? so, wouldnt NOS have the biggest molecule and leak less? either way, i dont see any leaking of any of my tires for the months they sit. usually the tire or the rim, or bead determine this i would think.
mk
09-06-2007, 08:06 PM
#21
Rennlist Member
"The atmospheric composition on Earth is largely governed by the by-products of the very life that it sustains. Earth's atmosphere consists principally of a roughly 78:20 ratio of nitrogen and oxygen, plus substantial water vapor (a gas), with a minor proportion of carbon dioxide. There are traces of hydrogen, and of argon, helium and other "noble" gases (and of volatile pollutants). Exact measurements are difficult, except for particular locales at a particular time."
From: http://en.wikipedia.org/wiki/Atmosphere#Composition
Basics comes down to marketing on street cars. The "dry" vote is correct - that's what helps things here in an operational environment, unless, of course, you're running either near absolute zero or plasma-inducing tire temps.
From: http://en.wikipedia.org/wiki/Atmosphere#Composition
Basics comes down to marketing on street cars. The "dry" vote is correct - that's what helps things here in an operational environment, unless, of course, you're running either near absolute zero or plasma-inducing tire temps.