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Thread Box:
NO2 inflator?
Thread started by tortuga_veloce at 01.13.10 - 9:53 pm

anybody ever tried putting NO2 in their tires? i used to work with a guy with a souped up accord who put NO2 in his tires. anybody ever tried this?

reply


All this talk of using pressurized canisters is making me think of ways to reuse those obsolete, 9oz CO2 Paintball cylinders I have lying around.



bentstrider
01.13.10 - 10:02 pm

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How about N2O ?





Joe Borfo
01.13.10 - 10:25 pm

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I've heard of gearheads putting nitrogen in their tires because it doesn't expand as much as air when tire heats up and keeps the pressure more consistent (please correct me if I'm wrong). I don't think it would have much benefit for bicycles.



Velocipede
01.13.10 - 10:39 pm

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Velocipede:
This is not true. For two reasons:

First, Air is mostly nitrogen (N2) anyway,

Secondly, regardless of composition it will expand the same amount. For the types of pressures, volumes, etc, we are talking about in tires, this formula holds true:

pV=NkT
(pressure)(Volume) = (# of molecules)(boltzmann constant)(Temperature)

It doesn't matter what type of molecule the gas is made of.



zombiefiesta
responding to a comment by Velocipede
01.14.10 - 1:51 am

reply


I run nitrogen in my civic EX. who's hatin? wut chu kno bout VTECH.


bbbaaahahhahahaa



shotgunBOOMBOOM
01.14.10 - 12:46 pm

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VTEC is an engine-timing device.
Modulates valve and crank-case performance ensuring a healthier running, less-prone to break-down, engine.



bentstrider
responding to a comment by shotgunBOOMBOOM
01.14.10 - 12:50 pm

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correct.......a+



louisiana
responding to a comment by bentstrider
01.14.10 - 12:55 pm

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Natural Gas



Joe Borfo
01.14.10 - 1:30 pm

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fart



mattspeed
01.14.10 - 3:51 pm

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haven't tried putting nos into my tires, but those little whippit cartridges are the same size as those co2 cartridges and might be cheaper to come by.



tfunk408
01.14.10 - 4:16 pm

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two of those will fill up a road tire
i use them cause they are like 15 for 4 bucks at the swap meet



SAUCE MODE
responding to a comment by bentstrider
01.14.10 - 6:04 pm

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but i dont use the 9oz i get 12oz



SAUCE MODE
01.14.10 - 6:04 pm

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People in race cars will do it because there is no moisture in their tires when they use Nitrogen. I guess water causes a lot of change as it heats and cools



Gav
responding to a comment by zombiefiesta
01.14.10 - 7:42 pm

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See? You learn something new every day. That's why I'm an artist and not a chemist or whoever deals with stuff like that. I just remember one of my friends who is into cars telling me that.



Velocipede
responding to a comment by zombiefiesta
01.14.10 - 9:03 pm

reply


Amateurs...............



Dedicated818
responding to a comment by Joe Borfo
01.14.10 - 10:27 pm

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especially if you have a friend who works at a restaurant and is willing to steal you some cartridges.



tortuga_veloce
responding to a comment by tfunk408
01.14.10 - 11:09 pm

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...are you reading this ade?



tortuga_veloce
01.14.10 - 11:09 pm

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haha i guess you can take hits off whippits but instead of a balloon you use a spare tube. aint that some sh!t



tfunk408
responding to a comment by tortuga_veloce
01.15.10 - 12:07 am

reply


He probably put N2, not NO2.

I just set up an N2 inflation system for track tires. It leaks out a little slower than regular air, and once you go to the trouble of doing a high pressure gas cylinder, regulator, and plumbing, the cost of the compressed N2 or Air is incidental. If you don't need super high pressure (i.e. you aren't using track tubulars) you can use one of these: http://www.prestaflator.com/ (you have to supply your own gas cylinder, regulator, hose, etc). I put together my own using a similar inflator with a gauge that goes to 220 psi. It ends up costing about the same as the prestaflator and takes a little more research to find parts. I even ended up using some of the prestaflator fittings on the end-- the barbed schrader chuck and the screw-in presta chuck.

The main reason to do it is that pumping to 170+ psi with a pump is a pain, especially if you have a bunch of friends/teammates with disk wheels--every tire is a two person job. I'll probably set up a second system for home with an air compressor, since I rarely need more than 120 psi at home. With the inflator it just takes a second to get it to whatever you want.



bitingduck
01.17.10 - 9:30 pm

reply

Reply


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