Expansion chamber or Anti-Siphon Tube? - Paintball Forum - Paintball guns and gear forums

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Old July 4th, 2004, 12:33 AM   #1 (permalink)
 
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Expansion chamber or Anti-Siphon Tube?

Whats a better upgrade to change my expansion chamber and install a new and better one or to install a anti-siphon tube to the CO2 tank?
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Old July 4th, 2004, 12:41 AM   #2 (permalink)
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Anti-siphon. Definately
This assures that NO liquid Co2 gets to your internals no matter how fast you fire. An expansion chamber will not work as desired at high ROF.

In case you didnt know an antisiphon tube is a tube that is put into the tank. It is bent upwards so that no liquid co2 gets sucked into it. (c02 tanks are only 3/4 of the way full of liquid when filled)
So imagine taking a soda bottle and tilting it sideways...kinda like that, with a tube bent towards where there is no soda.
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Old July 4th, 2004, 04:06 AM   #3 (permalink)
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Quote:
Originally Posted by Master of Paint
Anti-siphon. Definately
This assures that NO liquid Co2 gets to your internals no matter how fast you fire. An expansion chamber will not work as desired at high ROF.

In case you didnt know an antisiphon tube is a tube that is put into the tank. It is bent upwards so that no liquid co2 gets sucked into it. (c02 tanks are only 3/4 of the way full of liquid when filled)
So imagine taking a soda bottle and tilting it sideways...kinda like that, with a tube bent towards where there is no soda.

Basically. Cant say it any better. u get a cookie point.
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Old July 4th, 2004, 06:40 PM   #4 (permalink)
 
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Thanks Master of Paint
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Old July 4th, 2004, 06:56 PM   #5 (permalink)
 
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and remeber, it's dangerous to install the tube yourself. i know the theories on how it's done, but I wouldn't do it myself. take it to a paintball shop and have them do it for you.
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Old July 4th, 2004, 07:01 PM   #6 (permalink)
 
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How much they charge for that?
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Old July 4th, 2004, 07:05 PM   #7 (permalink)
 
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my shop charges 10 for the tube and installation, but, from what I hear, most shops charge more.
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Old July 4th, 2004, 07:25 PM   #8 (permalink)
 
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Old July 4th, 2004, 07:33 PM   #9 (permalink)
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Quote:
Originally Posted by outlaner_0990
my shop charges 10 for the tube and installation, but, from what I hear, most shops charge more.

Really? Ours does it for 5. But that was only once. Im not sure if it is still 5$. 10 sounds right to me.
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Old July 4th, 2004, 11:57 PM   #10 (permalink)
 
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Some places might install it for free if you purchase the anti-siphon tube from them (depending on how much they gouge you on it's price). It's worth trying I wouldn't bother though since the ASA is downangled on the E-99. You're not going to be sucking any liquid (a full tank is only partially filled with liquid) unless you shoot towards the ground.
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Old July 5th, 2004, 12:44 AM   #11 (permalink)
 
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Lightbulb

I just ordered my siphon tube from Ebay with a 20oz tank. The local bastards "knew what I needed" ($200 nitro tank) and didn't want to really install anything for me. It's not a really hard install anyways.
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Old July 5th, 2004, 02:49 AM   #12 (permalink)
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U need red loctite and also to know what you are doing.
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Old July 5th, 2004, 10:44 AM   #13 (permalink)
 
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how do I know if I need an anti-siphon tube or not??

any tell-tale signs that I'm sucking in liquid CO2??
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Old July 5th, 2004, 11:59 AM   #14 (permalink)
 
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The easiest way to tell is if you see large fluctuations in FPS or larger then usual clouds leaving your barrel. Keep in mind though that in cold weather you will have extra condensation even when not shooting liquid.
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Old July 5th, 2004, 12:17 PM   #15 (permalink)
 
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looks like i don't have a problem then.

but there's no real way for me to tell my muzzle velocity.
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Old July 5th, 2004, 12:54 PM   #16 (permalink)
 
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When you chrono in. Shoot more then once. Thats what my field does. They make u shoot like 9 times.
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Old July 5th, 2004, 06:51 PM   #17 (permalink)
 
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Hey Javaman are you saying that the E-99 Avant doesnt need the anti-siphon tube?
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Old July 6th, 2004, 07:34 AM   #18 (permalink)
 
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Yep. like I said in the above post the dropforward for the ASA puts it on a downward angle so you won't suck any liquid unless you point the gun down while shooting. Since you won't be sucking any liquid an expansion chamber won't make a difference either. If I were you I would take the money you were planning on using for the chamber and go with a decent CO2 regulator. This would be the best way to maintain consistancy from shot to shot plus if you reduce the operating pressure of the Spyder down to 600 or so with new springs you will be able to shoot more PBs in colder weather without the FPS dropping, along with a quieter report. This really isn't necessary though if you are happy with the way your gun already shoots.

Last edited by Javaman; July 6th, 2004 at 10:48 AM..
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Old July 6th, 2004, 08:40 AM   #19 (permalink)
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You probably don't need an anti-siphon for a spyder, chances are you'll upgrade it before you need a new one.
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Old July 6th, 2004, 04:20 PM   #20 (permalink)
 
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Ok I think I'm going with the regulator, wich one do you recommend? I want one that I can use it with nitro also
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Old July 6th, 2004, 07:19 PM   #21 (permalink)
 
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Quote:
Originally Posted by Master of Paint
Anti-siphon. Definately
This assures that NO liquid Co2 gets to your internals no matter how fast you fire. An expansion chamber will not work as desired at high ROF.

In case you didnt know an antisiphon tube is a tube that is put into the tank. It is bent upwards so that no liquid co2 gets sucked into it. (c02 tanks are only 3/4 of the way full of liquid when filled)
So imagine taking a soda bottle and tilting it sideways...kinda like that, with a tube bent towards where there is no soda.
Does that mean you'd have to have the tube in the straight up position everytime or can you screw it in so that the tube is pointing anywhere?
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Old July 6th, 2004, 07:54 PM   #22 (permalink)
 
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The Palmer stabilizer is a great one for both CO2 and HPA but it's a bit pricey at $85. Someone else might be able to suggest a cheaper/more cost efficient reg.
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