Tank output pressure for LP cockers

[SR_matt]

To preface I know the whole “shooting lower into the tank” isn’t really something in the real world as your HPR does its job (for the most part) either way.

But wanted to get some thoughts if there is any negative to using LP on a cocker.

The specific build in question will be running an AKA sidewinder (likely with the medium length top), full size cocker body, volumizer in the pneus, drilled ASA screw, laz valve, Jenny Kraig hammer, and Trident bolt.

The main reasons I was leaning to wanting to run LP are: possibility of adding a space gun to my collection that needs <500 input, reducing stress on the macro lines, and reducing stress on the HPR as well as helping to maintain consistent HPR output pressure during the last little bit of the tank.

Any real issues with running the LP in this scenario? I assume the marker will be running 180psi give or take and it’s going to be mech (be it with a gunfighter frame and one of the new Attkx triggers, but still not going to be RT mag or even space gun fast).

[superman]

Typically at the minimum you want to be 100psi or more above the operating pressure your marker is shooting at.

[SR_matt]

That makes sense. I’ve heard anywhere form 100-300 but I guess as long as your tank is high enough flow it really doesn’t matter as long as you can maintain the higher pressure upstream.

[Psycho91]

I want more info on the drilled asa screw, is this a diy mod or can they be bought

[SR_matt]

I want more info on the drilled asa screw, is this a diy mod or can they be bought

Attkx is offering them for both WGP and meteor threads. But I have seen some DIY it… but you better have a good press, vice, and drill bits to pull it off.

[SR_matt]

https://www.attktx.com/products/vent...cket-cap-screw Here is the link

[superman]

you can also order them direct from mcmastercarr, but they are expensive.

[GANT02]

McMaster only has 1/4"-20 if im not mistaken, not 1/4"-28

[GANT02]

Sold out currently of the hollow vasa screws for wgp, but you can backorder them right now! should have back in a week or two to ship out if you do!

[Roger7pball]

Most tank regulators I’ve tested drop 100-175 psi before recharging. I agree if you’re at least 100 psi tank output higher than your HPR setting you’ll be fine, unless you’re looking to do extreme rates of fire.

[SR_matt]

I always love some data. Is the x axis 1000ths of a second?

It’s also interesting to see that you can actually see how some regs are slower responding like the green line HK there where it drops lower than anything else and then creeps over time.

[SR_matt]

Now you have me wondering what a ninja SHP looks like on a mag that’s RT’ing at 20-25 bps.

[Roger7pball]

I was logging at a 1,000 hz, so yeah you’re correct. 1,000ths of a second.

[imped4now]

Nothing whatsoever *requires* <500 psi. The only marker that I could make an argument for is the 2011 G6R due to its trash ASA design. That was solved with the 2012 ASA. Even then, I've run over 500 psi into a 2011 G6R with zero issues from the culprit ASA seal.

The industry began pushing tank regulators and barrels years ago to provide more revenue streams. Misinformation has run rampant ever since.