Blitz128

I was wondering how long a 100 cf tank would last as compared to a I believe typical 5 foot tank which I think is 300 cf... both are rated similar pressure so I assume around 1/3 as many fills... the question is if there is a typical usage factor how many fills/ usage does one get from the tank used by many cup racers and others ? Obviously, the initial fill of a tire uses a lot of gas... Getting the tank filled is not an issue for me or the availability of more compact tanks. Lot of variables but perhaps some have a general feel of what the usage is ? And is my driving good enough to notice any difference...Hell No... just a interest question...

Veloce Raptor

Don't bother for tires, Mike...

captdownshift

Guinness, Tetley's and Boddington's on draft in the hauler makes it worth while

Blitz128

Had old scuba tanks and regulator gear laying around which are still safe /legal... Dave, your right I don't more crap to haul...

Dr.Bill

According to
http://www.shopnitrogen.com/

"A mid-sized 33 cubic foot cylinder is less than two feet tall and eight inches across, yet it can inflate up to 10 empty car tires or 120 empty bicycle tires before needing a refill."

If it's a SUCBA tank, make sure it gets re-painted or marked in some way. Diving with nitrogen would not be good.

mark kibort

I use a NOS bottle. its 10lbs of NOS, and works great to fill or top off a tire. a little expensive, at $40 per fill, but its very convenient for having air at the track , or even power tools for short bursts in a tiny bottle. (10lb bottle)
usually topping off tires all season long, and the bottle lasts a season.
if you are doing it to fun faster, don't bother. its has almost no effect on performance as long as you can predict your tire pressures hot. remember, both air and NOS, and just nitrogen expand with heat , just regular air has moisture in it, so it will expand more. if you anticipate this, there is no value to just running Nitrogen.

stownsen914

Isn't NOS combustible though?

KaiB

Nah, but why one would pay for it over N2 is beyond me.

Unless, of course, this is what Mark huffs prior to posting here.....

mark kibort

nope, its basically dry air, with a little more oxygen than air.
common misconception.

KaiB

But why would you buy laughing gas when plain N2 is so easy....

mark kibort

The reason is that you can get more mass in the tank of NOS. I think it was due to its liquification point. I think NOS was lower.
the main reason was the NOS guy was close. I don't know what Nitrogen costs vs the NOS but yes, NOS was a little on the pricey side for 10lbs.
but to answer your question. N20 turns to a liquid at a much higher temp than N2. so, the REASON is, you can store more in a small bottle.
N2 boils at -320F while NOS boils at near -120F . the draw back is that running powertools is a problem because they will freeze. short bursts are fine. also, I then have 1000psi to draw from if I need it.
as a note..... you still cant post , without a troll comment can you??
Look you ask, and I have a reason... and a good reason for using NOS in the tires.... But, since the idea is "beyond" you, it must not have any validity, right??
you're a funny guy Kai!

Matt Romanowski

So when you crash you can take a hit and not care.

Veloce Raptor

Yes...for some reason...there are NO professional race teams using NOS...

mark kibort

ha ha ha .... oh, but NOS has the "throw up " additive, so that would be a buzz kill

mark kibort

Again trolling? THINK Dave Think!!!! hmmmm, do pros worry about a 5ft bottle vs a 1.5 ft bottle? (part where I talk about space conservation)
do pros use air tools , Almost ALWAYS. (part where I talk about frozen air tools)

So, that "some" reason is REALY clear Dave, if you pay attention here.

Now, if you drive the race car to the track, and only can afford a 1.5 foot long bottle, NOS makes perfect sense, especially for the tires, and light air tool work. a bottle lasts me all season. I fill once a year. (or if you want an air sourse that is much more compact for the same gas mass) And, I have the advantage of having a little more pressure than some of nitrogen bottles to break a nut free if needed too!

since you are rolling your eyes, why do you think pro teams are not using NOS? (this should be good! )