NITRO GUYS CAN START READING AGAIN HERE
Firstly, you may wonder why I let you skip that huge, seemingly important chunk of text. All Nitrogen tanks have regulator built into them, that is, of course, how the gas inside gets from an explosive 3000psi or 4500psi down to a useable 850psi. This means, as long as you are running Nitro on your stock Tippmann you do not require a secondary regulator, sure, you can use one if you like, in which case you'd probably want to go back and read the above, but simply put, it's not required, so save yourself the trouble.
If you are a glutton for punishment:
You really want to double reg your stock Tippmann on HPA, fine, be that way. Just remember this one thing, make sure that both the tank AND secondary reg are high flowing and have a good recharge rate. Also try to have about a 75 to 100psi difference in the input and output pressures of the secondary regulator.
If you are just a freak about using CO2:
Alright, you are dead set on having CO2 be the best and most consistent thing for you ever. Anti-siphon the tank, you need to keep liquid out of the marker at all costs. Next run from the tank to a FEMALE reg. After the female run to a male or direct reg. Palmer's Pursuit Shop says that a setup like this will get you actual +or-2fps at the chrono with CO2. Just remember to watch your input and output pressures to make sure that there is sufficient difference between the two. This would also be a good way to get away with CO2 if, for some reason you have a Low Pressure Kit. I feel it also worth noting that by the time you get done paying for and setting up a system like this, you could've easily purchased a decent nitrogen tank. It's still an option though.
The Low Pressure Kit(LPK):
You've decided that even with a reg your Tippmann just isn't efficient and accurate enough, maybe you want an E-Bolt for your Model 98 Custom, or just want to customize the snot out of your A-5. ProCarbiners, sorry guys but you're left out here, unless you are a pretty good air smith and can make your own LPK, in which case, you probably wouldn't be reading this, the Carbine has no Low Pressure capability. Back to the subject though.
LPK allows you to double reg effectively, utilizing not only, the reg that is on the tank itself, but a secondary (LP)reg affording even greater consistency and a measure of increased efficiency. The LPK(Low Pressure Kit) is basically a new set of internals(valve, hammer, springs, etc.) for the marker that allow it to operate at lower pressure. With stock internals the valve in a Tippmann will not operate below 600psi, in fact it may not operate AT 600psi. With the LPK things change, the valve pin is softened and lightened, meaning less force is needed to open the valve and fire the marker. This allows for a lighter hammer and a softer drive spring, which require less back pressure to recock. A Tippmann equipped with LPK will operate effectively and efficiently in the 300-400psi range. If you are a good tinkerer, I've heard of guys doing mods that will allow you to operate even lower, down to the 150-200psi range(usually this is in conjunction with the E-bolt). The Tippmann LPK for the 98C costs about $100 and comes with a valve, vertical adapter with a volumizer, new rear cocking hammer, and springs. The LPK for the A-5 includes the new valve assembly, the VA with volumizer, a new longer length of steel braid gad line to run from the stock ASA to the secondary reg, and a higher flowing hose to power the Cyclone. NEITHER OF THEM include the secondary reg. Tippmann does distribute a reg, but it is a copy of PMI's "Pure Energy" reg and, due to mediocre performance, should be avoided. The Low Pressure Kit comes with one more, small added bonus, since the marker is operating at lower pressure with softer springs the bolt is not being pushed forward with as much force, this means more pinched paint and LESS chopped paint.
If I were to reccomend a reg for Low Pressure work:
If money is not an issue: Palmer Stabilizer, AKALMP Sidewinder, Mac Dev '04 Gladiator, Evil Detonator.
If money is an issue: Custom Products, Bob Long Torpedo, WGP Ergo.
Basically, what I just said boils down to this:- Reg on Anti-siphon CO2 = Decent consistency and best performance for CO2 within reason.
- Dual Regs and Anti-siphon CO2 = Excellent consistency and, best possible performance for CO2.
- Nitro tank just screwed into marker = Good consistency but kind of inefficient.
- Nitro tank+LP Kit+GOOD LP reg(AKA Sidewinder) = Best consistency, added efficiency, slighty decreased chops.
Hope that helps feel free to post or PM me with questions and comments or on anything you'd like to see changed or added.
Coenen
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