LP without LPK!
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=136587
Printed Date: 22 January 2026 at 11:13am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: LP without LPK!
Posted By: triggerhappy1
Subject: LP without LPK!
Date Posted: 27 June 2005 at 2:13pm
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Iv heard before that you can operate a Tippmann on low-pressure without the LPK. And a recent thread inspired me to try it out for myself. So today I did! I took the Sledgehammer reg and gauge off my autococker (pretty much butchered the gun), and transfered them onto my 98. To adjust the reg you have to take the line off the bottom which is a real pain, so I put on my ol' vertical adapter which is easy to remove and put on. And I also put in an in-line gauge to check the pressure, the whole setup was for testing so its pretty ugly. The results- At just under 500psi it cycled fine, but the velocity screw was all the way in. So when I tried turning it up, my gun went "full auto". This is probaly because less diverted air means less potential blowback. So I turned the reg up to about 550psi, and everything is perfect. The gun with RT cycles blazing fast like before, and soon Ill be able to feed it with the Halo B I bought! So if you want to run your gun on low-pressure, you dont need the LPK, just a regulator. Heres some pics-
During testing
The final setup.
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Replies:
Posted By: A-5 08
Date Posted: 27 June 2005 at 2:47pm
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HErd it before too. On the a-5 its a bit different though. The cyclone gets starved for air.
Sounds great. I'm still getting an LPK for my a-5. |
Posted By: You Wont See Me
Date Posted: 27 June 2005 at 2:53pm
Tippmanns just trying to take our money
------------- A-5 E-Grip JCS Dual Trigger DOP X-CORE 8 stage x-chamber Lapco Bigshot 14" Beadblasted Optional setup: R/T Dead on Blade trigger |
Posted By: hybrid-sniper
Date Posted: 27 June 2005 at 3:08pm
| I can attest that the A-5 will not even come close to firing properly at 450 psi input. |
Posted By: triggerhappy1
Date Posted: 27 June 2005 at 4:30pm
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Forgot about the A-5. We wont know untill we try it. I can bet you it will though. My RT worked at the same ROF (about 20cps) as on high pressure. I was surprised it did. So why would the cyclone not operate from the blowback if my RT does at that pressure? Next time I get my hands on an A-5 Im testing it out. -------------
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Posted By: hybrid-sniper
Date Posted: 27 June 2005 at 4:40pm
| I did try it; it would not work off 450 psi. |
Posted By: Smitty
Date Posted: 27 June 2005 at 4:50pm
| Nice. I'm glad you tested that. It helps out a lot of people. |
Posted By: triggerhappy1
Date Posted: 27 June 2005 at 4:51pm
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Mine wouldnt either off 450-500psi. Try over 500psi. -------------
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Posted By: corpsmann0000
Date Posted: 15 July 2005 at 10:28pm
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i'm using an autococker regulator on my A5 working on 500psi and i consistently
get 278fps on all the field chrono i've been to. i can go down to ~450*
and it still cycles just fine but my fps goes down to 230-250fps range.
*i have a 1200psi 100degreee sweep gauge, so i can't really tell for sure, just that it's between the 400 and 500 lines. i'm definitely sure about the 500 psi tho cuz the needle is right on the 500 line. |
Posted By: cdacda13
Date Posted: 15 July 2005 at 10:38pm
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LP is 450 or under. You would still need an HP tank for this to work.
Therefore, you would reduce kick alittle bit, but won't get an more
efficent. And, if you have an RT, this mod would suck. |
Posted By: corpsmann0000
Date Posted: 15 July 2005 at 11:09pm
| 500 is still lp relative to the atmospheric 850psi with which the a5 normally operates. |
Posted By: Unicorn
Date Posted: 16 July 2005 at 2:54pm
| If it wasn't for my RT I could drop the pressure on my 98C with the LPK to under 300psi, around 270 I think. Becuase the RT used some of the air that would have been used to recock the gun, I had recocking problems at higher rates of fire, so upped the prsssure to about 350psi. |
Posted By: WKS_weiner
Date Posted: 16 July 2005 at 4:48pm
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that's how NN did his mech 98c. -------------  Always Bite the Hand 
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Posted By: cdacda13
Date Posted: 16 July 2005 at 8:04pm
Really, I thought he made his own LPK. It wasn't that hard. I remember some of it. Make the channels on the valve deeper RVA Lighten the back bolt a reg a VA with a T fitting And he made his own secondary reg. |
WKS_weiner wrote:Posted By: WKS_weiner
Date Posted: 17 July 2005 at 2:24am
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he did make his own lpk...but i think for another of his tippmanns. ------------- Always Bite the Hand
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Posted By: A5 Man
Date Posted: 17 July 2005 at 4:06am
| mmmmmmmm |
Posted By: bluemunky42
Date Posted: 17 July 2005 at 3:43pm
pretty cool  ------------- 
http://www.freewebs.com/hazedinsanity - http://www.freewebs.com/hazedinsanity |
Posted By: boarder2k7
Date Posted: 17 July 2005 at 6:39pm
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cool, people here actually believe it.
Props man.
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Posted By: Metal_Nutz
Date Posted: 18 July 2005 at 8:19am
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you could try playing with the springs and maybe get your operating pressure even lower ------------- Can't sleep forums will eat me |