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Co2 tire inflator flow

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Co2 tire inflator flow

Unread postAuthor: Demon » Sat Sep 20, 2008 6:57 am

I want to make a small BBmg, i already have the barrel(6mm x 30 cm long from an hobby shop)and want to use a co2 tire inflator as air source, but problem:

i dont know if they have enough airflow(the tire inflator) because i never sawed one in action.

Videos reply will be great!



My english sucks
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Unread postAuthor: littlebro05 » Sat Sep 20, 2008 8:14 am

http://www.spudfiles.com/forums/full-automatic-bb-pistol-t8166.html

Checkout this dude's gun.

It has videos and everything, he runs it on 8g unreg co2 cartridges. since their cheaper over here in australia. It shoots for about 4 seconds before it runs out, so I assume 12g would give probs another 2-3seconds of firing.

Hope that answered your queries :)
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Unread postAuthor: Demon » Sat Sep 20, 2008 8:58 am

Wow, only 6 seconds for a 12 grams co2 catridge?

What a waste of money!
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Unread postAuthor: littlebro05 » Sat Sep 20, 2008 9:11 am

Demon wrote:Wow, only 6 seconds for a 12 grams co2 catridge?

What a waste of money!


What do you expect lol, 12grams is like what... 300psi of co2, well look it up on spudwiki... it tells you how much of what works. Although 6 seconds maybe a waste of money but if you buy ten thats one minute of firing. And I guess if you were going to backyard skirmish with them, you'd expect to have a sidearm as your backup.

It's good since it's compact too. For 80psi on 1.5L air you only get 6 seconds but 6seconds on 12gram cartridges... well you'll see the difference, I don't think you'd want to be lugging around a tank on you
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Unread postAuthor: Demon » Sat Sep 20, 2008 9:21 am

I was thinking of this

Why dont use this as an air power source:

Just replace the barrel by an bbmg
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Unread postAuthor: Davidvaini » Sat Sep 20, 2008 9:39 am

Actually if you only take burst shots and wait for a couple of secconds before each shot you can get quite a few shots.

I made a bbmg pistol with a co2 inflator straight to the back of a tire valve that was attached directly to a hopup/barrel.

The co2 is quite powerful. and as long as you dont fire constantly you can get a little mroe time out of it.
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Unread postAuthor: Carlman » Sat Sep 20, 2008 11:30 pm

littlebro05 wrote:12grams is like what... 300psi of co2,


wtf?
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Unread postAuthor: littlebro05 » Sun Sep 21, 2008 12:03 am

Carlman wrote:
littlebro05 wrote:12grams is like what... 300psi of co2,


wtf?


I just made a rough estimate lol, and do you always have to point out the smallest of errors and make some sort one line remark.

I'm just assuming since the bike tire inflator is unregulated.
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Unread postAuthor: Lentamentalisk » Sun Sep 21, 2008 12:19 am

littlebro05 wrote:I just made a rough estimate lol, and do you always have to point out the smallest of errors and make some sort one line remark.


uuugh! shoot me now!

you don't even have sufficient units for 300 to be an answer. Yes you are right, 300psi, but that is just one possible answer. You never specified volume, that is like I said orange juice is the size of a basket ball... it is true, but it has nothing to do with anything.

12g of liquid CO2 will boil, then expand, given the right sized chamber, to lower the pressure to 300psi, but that is irelevent. Liquid CO2 has a vapor pressure around 830psi at room temp, but as soon as you open the valve, the temperature starts dropping quickly, as all of the energy of boiling it gets sucked out of the surrounding liquid CO2.

[/rant]
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Last edited by Lentamentalisk on Sun Sep 21, 2008 12:35 am, edited 1 time in total.
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Unread postAuthor: Carlman » Sun Sep 21, 2008 12:31 am

littlebro05 wrote:
Carlman wrote:
littlebro05 wrote:12grams is like what... 300psi of co2,


wtf?


I just made a rough estimate lol, and do you always have to point out the smallest of errors and make some sort one line remark.

I'm just assuming since the bike tire inflator is unregulated.


its not the smallest of errors though, what if someone was to read what you wrote as true and fill a small chamber with un regulated c02 and it not able to handle pressures in excess of 800psi, what happens to your 'smallest of errors' then huh?
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Unread postAuthor: jackssmirkingrevenge » Sun Sep 21, 2008 2:39 am

You won't get many shots out of a 12 gram, but that's a trade-off for the fact that you're getting quite a powerful BBMG in a pistol sized package. You might also look into getting an adapter for the much larger 88 gram cartridges, if your CO<sub>2</sub> inflator uses threaded cartridges if I'm not mistaken the thread should be similar.
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Unread postAuthor: littlebro05 » Sun Sep 21, 2008 5:58 am

Carlman wrote:
littlebro05 wrote:
Carlman wrote:[quote="littlebro05"]12grams is like what... 300psi of co2,


wtf?


I just made a rough estimate lol, and do you always have to point out the smallest of errors and make some sort one line remark.

I'm just assuming since the bike tire inflator is unregulated.


its not the smallest of errors though, what if someone was to read what you wrote as true and fill a small chamber with un regulated c02 and it not able to handle pressures in excess of 800psi, what happens to your 'smallest of errors' then huh?[/quote]


Alright then, I dub you perfectionist lol. But aside from that I'm sorry, geez :S. Then again soda bulbs are very dangerous, don't want to talk about bombs, against the rules I think.
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Unread postAuthor: mark.f » Sun Sep 21, 2008 10:27 am

There was somebody who posted, a while back, a BBMG running off an aerosol can. I bet you could get OK performance out of an airsoft BBMG running off of something like a large air-duster can, but don't take my word for it.
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Unread postAuthor: POLAND_SPUD » Sun Sep 21, 2008 11:48 am

aerosol can = propane.. it should work if done properly
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Unread postAuthor: Lentamentalisk » Sun Sep 21, 2008 1:12 pm

that could be a really cheap air source. I know it has been used before for various things, but I never thought about using it for a BBMG... then you could light the tip on fire, and get a flamethrower along with it... or not...
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