Oops with HPA, will it be enough?
Printed From: Tippmann Paintball
Category: Paintball Equipment
Forum Name: Upgrades and Customizing
Forum Description: Trick it out!
URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=174576
Printed Date: 16 April 2026 at 6:32am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Oops with HPA, will it be enough?
Posted By: GunslingerSlash
Subject: Oops with HPA, will it be enough?
Date Posted: 04 April 2008 at 12:56pm
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I bought a 144cf 4500# tank. Best I can figure is that when it was filled, they didn't get the valve shut off all the way and it's down to 3500#. (It's been holding steady for several days since I tightened the valve closed.) I'm playing this Sunday and it would be a special trip about 50+ miles round trip to top it off. I'll be using my Crossfire tank and was wanting to see if someone could tell me if I would have enough air in the big tank to play on Sunday or go ahead and make the special trip to top it off. Gas in my area is $3.39/gal today... This is the first time I'll be using HPA so I have no point of reference on how long this will/should last me. Thanks... ------------- 98C, 14" AA barrel, X chamber, RVA, R/T, Motorized Hopper, 48/3000 Crossfire HPA |
Replies:
Posted By: StormyKnight
Date Posted: 04 April 2008 at 1:14pm
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I hope you mean 144ci tank. A 144cf tank would be something you'd SCUBA dive with. You should get bare minimum about 1000 shots out of what you have left. Probably more. ------------- 
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Posted By: GunslingerSlash
Date Posted: 04 April 2008 at 1:21pm
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Nope... It's a 144CF. It's what I'll fill my smaller tank with between games. ------------- 98C, 14" AA barrel, X chamber, RVA, R/T, Motorized Hopper, 48/3000 Crossfire HPA |
Posted By: Snake6
Date Posted: 04 April 2008 at 1:46pm
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Shoot. That will be enough to last you a few weeks. I am assuming there are 12 Cubic Inches in a Cubic Foot. So there are 1728CI in your tank. So therefore, at 4500 psi you should get about ~25000 shots off that tank. At 3000psi you should get about 17000 shots. If you have a 68 CI tank you should get about 25 fills off of that.* *This is all assuming that my math isn't bassackwards. And that I have my units of measurment right. EDIT: Ok, so wikipedia is telling me there are 1728ci in one cf. So if this is the case, You have 248,832ci in your tank. You will get about 2,480,000 shots at 3000 psi. You will get about 3,700,000 shots at 4500 psi. You will get about 3800 fills. Somehow that doesn't seem right, and I don't think its my math. Let me check wiki.
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GunslingerSlash wrote:Posted By: GunslingerSlash
Date Posted: 04 April 2008 at 1:55pm
Thanks!  I kind of figured it would be enough but I was nervous since I don't have a point of reference! But I will soon enough!!!! ------------- 98C, 14" AA barrel, X chamber, RVA, R/T, Motorized Hopper, 48/3000 Crossfire HPA |
Posted By: Snake6.
Date Posted: 04 April 2008 at 2:16pm
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Just to give you an idea of where I got those numbers from. Normally on a HPA tank you calcualte the number of shots you should get with this equation: x=size of the tank in cubic inches. y=number of shots. For 3000psi tanks: 10*x=y. For 4500psi tanks: 15*x=y. ------------- 
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Posted By: thejudge
Date Posted: 04 April 2008 at 2:25pm
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I did some research and found that its actually 196,992 ci tank then. That said you will have about 2,413,152 from that tank if you use a gun that uses more air than any other gun on the market. Get it filled to the true 4500 and you will have 3,102,624. So i think you are good to go. ------------- Stay low, run fast, and hope that paintball doesn't hit your... http://www.deltasquad.info/"> 
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Posted By: Snake6
Date Posted: 04 April 2008 at 2:39pm
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I just did some searching on wiki. We are all wrong. Dive tanks are not measured in any way that makes sense to a sane individual.
So therefore we would need The real capicity of the cylinder to make a good guess. -------------
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