paintball tank question

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nissan24009
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i've been paintballing for a couple of months now and want to change from co2 to air, and was wondering whats the difference in psi and cubic inches?for example why is a 68cu inch by 4500psi way more expensive than a 68cu inch 3000psi? i understand its both the same size but what is the difference in psi when there is a regulator on the tank?


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Mr1der
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the tank's volume is the same but it's capable of storing gas under more pressure.

stronger tank

MaximA32

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By the way, psi is "per square inch" while cubic inches is just that, cubed. Squared is the derivative multiplied by itself twice while the term "cubed" means the derivative multiplied by itself three times. Just a lil math lesson for ya.

nissan24009
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so does that mean that i can shoot the same amount of balls with the 68cu inch 3000psi as compared to the 68 cu inch 4500psi?

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Red coupe
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MaximA32 wrote:By the way, psi is "per square inch" while cubic inches is just that, cubed. Squared is the derivative multiplied by itself twice while the term "cubed" means the derivative multiplied by itself three times. Just a lil math lesson for ya.
If your going to talk about math lessons, you would be better to not use the term "derivative"... cosidering the fact that this has nothing to do with derivatives. Your explanation gives no real extra understanding of the issue.
nissan24009 wrote:so does that mean that i can shoot the same amount of balls with the 68cu inch 3000psi as compared to the 68 cu inch 4500psi?
I would assume you can shoot more with 4500 PSI... or shoot the same further.

cubic inches is cubes, as in 1 inch by 1 inch by 1 inch.... It is a measure of volume, the amount of space taken up by a cube with 1 inch sides.

PSI is pressure, which is a force over an area... in this case 1 pound over a surface inside a square with sides of 1 inch each.

So for a given volume (the amount of space filled by 68 cubes with 1 inch sides) a higher PSI means there is more air/co2 crammed inside, which should get you more shots.

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PoorManQ45
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Red coupe wrote:So for a given volume (the amount of space filled by 68 cubes with 1 inch sides) a higher PSI means there is more air/co2 crammed inside, which should get you more shots.
Or the same number of shots, but at a faster rate.

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Red coupe
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PoorManQ45 wrote:
Or the same number of shots, but at a faster rate.
Sounds almost like the part where I said
Red coupe wrote:I would assume you can shoot more with 4500 PSI... or shoot the same further.
You gotta read the whole post Actually though I think you get more shots reguardless.

Even at a higher pressure, your tank ends up dropping PSI with each shot... so eventually it reaches that alternative, lower PSI and you have the same number of shots to go from there.

So as long as you are using the same mechanism in both cases, more PSI should be more shots.

LayNLow240
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Simply put more psi= more shots per tank(because of more air capacity) And really you could go with a 45/45 and be perfectly fine in a speedball match if thats what you play, that way you can keep a smaller profile and less weight to lug around. Just make sure the field(or wherever you plan on getting it filled) around you can fill a 4500psi tank. Some places are limited to 3000psi.

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breadbox
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You get more shots from a 4500 vs 3000. however most fields only fill to 3000.

In all honesty, if you just play recball and no tourneys then 3000 will be all you need.

I like the size of 68.

Get a guerrilla air tank with a myth reg. or draxxas tank, Crossfires are easy to find but I don't like the regs on them. Don't get a pure energy tank.

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breadbox
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also what marker/gun do you use? What kind of play are you doing?airball/woods

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C-Kwik
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PoorManQ45 wrote:Or the same number of shots, but at a faster rate.
Red coupe wrote:I would assume you can shoot more with 4500 PSI... or shoot the same further.
Higher tank pressure does not equate to higher shot rates or faster ball speeds. The reason for this is that compressed air/nitro tanks are regulated at the nozzle. Typical paintball guns tend to run around 800 psi. Some people modify guns to run at lower pressures but the pressure is still regulated to a specific pressure at the nozzle of the tank or perhaps a reg attached to the gun itself. While a higher pressure feed into the firing chamber would imply a higher ball speed, it is not the case in practice and would present the challenge of dealing with balls breaking from the high pressure if you set such a pressure high enough. Not to mention the mechanical parts' ability to deal with more pressure than originally designed. CO2 tanks are unregulated because CO2 naturally regulates itself at about 800 psi. The big downside to CO2 is because its in liquid form, the temperature swings are rather large (especially if you shoot a lot). This can cause a pressure drop and erratic performance. Conversely, if one leaves their tank out in the hot sun, the pressure can become so high that the hammer can't hit the valve hard enough to open it and you get no shot.

As many mentioned, higher pressure tanks are indeed just for getting more shots per tank fill. 3000 psi would probably work for most players. Other than the inconvenience of going to get air more often, there isn't going to be much difference. And its unlikely you will run out of air in a single game. You'ld have to carry a large amount of paint with you to even come close. Most fields don't have 3000 psi fill stations as some also mentioned already, but many fields nowadays around me allow you to pay for unlimited air at the beginningh of the day. One of the fields I have been to around here also happens to be able to fill to 5000 psi.

As for choosing a tank, you can cheap out on the tank itself, but get a good regulator. The reg is generally the biggest expense anyways. Perhaps do some research on the reg as well. Not only do you want great performance (consistency), but reliability as well. Last time I went, I spent the day trying to fix my regulator as the o-ring broke. It was a rather simple problem, but it uses some odd sized o-ring that I could not find anywhere. Its still not fixed yet, and a call to the manufacturer can probably get me a new o-ring, but I've been lazy about it since I have to get the tank hydro'd anyways. My reg performs very well when working, but the reliability factor killed a day of paintballing. And thats not fun, especially since I rarely go anymore.

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breadbox
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What tank was it? Was it the oring that seals the the reg to the tank?

I hate crossfire tanks because taking them apart for hydro sux.

I need at 68/4500 bottle only for my ion's maxflow. MY friend just got a DM9 and tuned it a little at my house. Super comfy, kinda too light so it kicks, more than my legend. but its quiet as hell.

I wanna say either that he has a tippy or spyder clone.

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C-Kwik
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breadbox wrote:What tank was it? Was it the oring that seals the the reg to the tank?
It is actually a WGP tank. The o-ring was the one inside the reg itself. I may just look for a new reg when I plan to play again. Perhaps one with an ASA connector as I have a cheap spare compressed air tank I can use as a back-up. Hell, in a pinch, I could also use any of the number of CO2 tanks I own. The WGP regs were designed to mount on a dovetail so switching tanks requires some work.

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breadbox
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get a Guerrila air myth reg. I have the Version 1, I loves it. Mine was like $40-60

The 3000psi myth is $43.

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C-Kwik
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breadbox wrote:get a Guerrila air myth reg. I have the Version 1, I loves it. Mine was like $40-60

The 3000psi myth is $43.
The G2 is neat. The gauge and nipple position can be rotated to any position. Might be a potential point of problem though, but I like the idea. I'll keep it in mind if I decide to go that route. Its been so long since I actively kept track of what is going on with paintball. So many new companies. Hell, I just learned of the whole Smart Parts fiasco like a year ago.

nissan24009
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breadbox wrote:You get more shots from a 4500 vs 3000. however most fields only fill to 3000.

In all honesty, if you just play recball and no tourneys then 3000 will be all you need.

I like the size of 68.

Get a guerrilla air tank with a myth reg. or draxxas tank, Crossfires are easy to find but I don't like the regs on them. Don't get a pure energy tank.
breadbox wrote:also what marker/gun do you use? What kind of play are you doing?airball/woods
i have a 06 planet eclipse ego marker! i mostly play recreational ball up to about 5 to 7 games and very little tourney. why dont you like pure energy?


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