mcarterbrown.com  

CCI Home of the Phantom Pump Gun

Closed Thread
 
Thread Tools Search this Thread
Old 05-14-2013, 09:22 AM   #1 (permalink)
Post Whore
 
Cunha's Avatar
 
Join Date: Apr 2006
Location: Monterey, CA
Send a message via AIM to Cunha Send a message via MSN to Cunha Send a message via Yahoo to Cunha

Why the long valve body?

I have "bobbed" the valve on a phantom before and it worked just as well, even playing with constant air.

Is there any reason for the length of the bottomline/vsc valve body?
__________________
"I'll see it when I believe it"

PSA: Please don't use photobucket to post images. When you go through one of the older picture threads and find a lot of dead photo links, it is because of photobucket. They limit the amount of bandwidth your free subscription pictures can use, and then make the photo unviewable. Please use imgur.com or another free image host that does not ruin picture threads.
Cunha is offline  
Old 05-14-2013, 10:07 AM   #2 (permalink)
Brass Mafia Wannabe
 
Join Date: Sep 2010
Location: Oh Hi Oh

Expansion for the co2 to make it a little more efficient. Although I do agree it could be cut down to like 2/3 of what it currently is.
__________________
Quote:
Originally Posted by Floundah View Post
Now that's something worth fundraising for, an MCB zombie defense fort. With indoor fields. And blackjack. And hookers.
Leave me some feedback if you've dealt with me:
http://www.mcarterbrown.com/forums/f...-feedback.html
artguy63 is offline  
Old 05-15-2013, 06:21 AM   #3 (permalink)
Summer's a-commin'
 
cobyrne's Avatar
 
Join Date: Feb 2008
Location: Dunedin, NZ

Good question. Maybe to work with the CCI sight rails?
__________________
MCB Feedback
cobyrne is offline  
Old 05-15-2013, 08:49 PM   #4 (permalink)
Post Whore
 
Cunha's Avatar
 
Join Date: Apr 2006
Location: Monterey, CA
Send a message via AIM to Cunha Send a message via MSN to Cunha Send a message via Yahoo to Cunha

Well, the large size definitely doesn't make it more efficient with 12 grams. One can gain quite a bit of efficiency by devolumizing the valve body by filling it with stuff, or by cutting it in half and threading it further forward for 1/8 npt.

I wonder if there was any reason outside of a nice place to put a site rail, or for proportional reasons. Maybe it was to make it more consistent with constant air by being a sort of expansion chamber or something.
__________________
"I'll see it when I believe it"

PSA: Please don't use photobucket to post images. When you go through one of the older picture threads and find a lot of dead photo links, it is because of photobucket. They limit the amount of bandwidth your free subscription pictures can use, and then make the photo unviewable. Please use imgur.com or another free image host that does not ruin picture threads.
Cunha is offline  
Old 05-15-2013, 09:51 PM   #5 (permalink)
MCB Member
 
THE-SHOOTIST's Avatar
 
Join Date: Apr 2006
Location: Saugus MA

The Phantom was originally designed and built as a "Competition" Paintball gun. The rear valve body was a 12-gram drop-out.
The CO2 bottle ASA valve bodies and the 1/8" NPT valve bodies were designed to fit the exsisting gun.
__________________
Fearlessly, the idiot faced the crowd, smiling...
THE-SHOOTIST is offline  
Old 05-16-2013, 08:55 AM   #6 (permalink)
Brass Mafia Wannabe
 
Join Date: Sep 2010
Location: Oh Hi Oh

If I have one gripe about the Phantom, it's the rail. I never use it, I hate it. I wish that those holes weren't there at the top at all.
__________________
Quote:
Originally Posted by Floundah View Post
Now that's something worth fundraising for, an MCB zombie defense fort. With indoor fields. And blackjack. And hookers.
Leave me some feedback if you've dealt with me:
http://www.mcarterbrown.com/forums/f...-feedback.html
artguy63 is offline  
Old 05-21-2013, 07:16 AM   #7 (permalink)
Seasoned Member
 
Join Date: Jul 2009
Location: Ontario Canada

Quote:
Originally Posted by artguy63 View Post
If I have one gripe about the Phantom, it's the rail. I never use it, I hate it. I wish that those holes weren't there at the top at all.
You only really see them if you don't run the SC feed tube.
Or bolt on a duckslide and never see those holes again!
Pat.
__________________
Canadian Response
Feedback:
http://www.mcarterbrown.com/forums/f...-feedback.html

Tell me why I had to be a powerslave.
I don't wanna die, I'm a god, why can't I live on?
When the Life Giver dies, all around is laid waste.
And in my last hour,
I'm a slave to the power of death.
p-bpat is offline  
Old 05-24-2013, 05:33 PM   #8 (permalink)
****ing speak up Im deaf!
 
Dr. VonDeafingson's Avatar
 
Join Date: Apr 2011
Location: Cleveland, Ohio

CCM Fan
Brass and Wood Fan
PPS Fan
Quote:
Originally Posted by p-bpat View Post
You only really see them if you don't run the SC feed tube.
Or bolt on a duckslide and never see those holes again!
Pat.
He runs a rock backward phantom with an offset feed. No matter what he does he'll see them.
__________________
Team Brass Mafia - The Yorkie

Quote:
Originally Posted by Talfuchre View Post
If you are not stalking - you are not showing love...
Feedback
Dr. VonDeafingson is offline  
Old 06-01-2013, 07:47 PM   #9 (permalink)
Banned
 
Join Date: Aug 2007

Devolumizing does not improve 12 gram performance, by the way. The most efficient SC Nelsons I've used have quite a bit of valve chamber volume (Grey Ghost, Retro 7), this volume is necessary to make sure the co2 is fully in gas form before firing (which is the ACTUAL way to maximize efficiency... never ever fire liquid). Bobbing a phantom valve body doesn't make a big difference either way (it's more of a cosmetic custom option than anything).
ApoC_101 is offline  
Old 06-01-2013, 11:42 PM   #10 (permalink)
CxT
Rec Poster
 
Join Date: Nov 2007
Location: Toronto, Ontario, Canada

Quote:
Originally Posted by ApoC_101 View Post
Devolumizing does not improve 12 gram performance, by the way. The most efficient SC Nelsons I've used have quite a bit of valve chamber volume (Grey Ghost, Retro 7), this volume is necessary to make sure the co2 is fully in gas form before firing (which is the ACTUAL way to maximize efficiency... never ever fire liquid). Bobbing a phantom valve body doesn't make a big difference either way (it's more of a cosmetic custom option than anything).
Any particular reason why the phantom dropout valves are slightly better at gas then? Granted mine is set to 240 fps (local field rules), but I'm seeing 55ish shots per 12g on a slight underbore.
CxT is offline  
Closed Thread

  mcarterbrown.com » Paintball » The Armory » CCI

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -4. The time now is 05:01 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO
© MCB Network LLC