Due to the growing demand for Nitrogen/Compressed Air systems we decided to develop a kit that would offer the best efficiency at a set low pressure. Although the stock 98 Custom will operate on nitrogen without the kit, there is very little advantage over CO2 because the internals are not designed for a high pressure system. When we design a gun to operate on CO2 we have to take into consideration a large variety of pressures ranging from an empty bottle all the way up to 3,000psi, where the rupture disc fails. CO2 changes pressure as the temperature changes, the higher the temperature the higher the pressure. Granted we cannot cover the entire pressure range, so we shoot for the most common operating pressures. These pressures are 300-2,000psi. In order to have a gun function through this pressure range, without a large velocity variation, we sacrifice some efficiency and overall gun comfort. With a high pressure system we are only working with one set operating pressure. Through research and testing we have found the most efficient pressure to be between 300-400psi. By changing the configuration of the valve and rear bolt we can obtain better efficiency, less recoil, and a more consistent shot to shot velocity. The new HP kit consists of a lighter rear bolt, new rear cocking assembly, lighter drive spring, new valve assembly, new vertical adapter, and a low pressure chamber. With the operating pressure around 350psi the valve opens much easier, but also requires a larger amount of gas flow to maintain ball velocity. Along with the valve modifications the low pressure chamber supports these flow and volume demands.
The Tippmann Nitrogen/High Pressure Kit is newer, so it should be commonly available, both new and used.
I chrono my marker to be more consistent than with CO2 and HPA without lp kit. I get +-8 bps. Guns quieter - the ping is gone. Less recoil and this helps accuracy. Feels and sounds like a higher end marker. Great for people who love their Tippmans, your gun will compete with the best of them.
The Tippmans are still aliitle cumbersome for me but still the lp is a must upgrade. A litttle costly, with the price for the lp, reg, and marker you can buy a higher end marker but this is not about the marker it's about the lp kit.
If you own a Tippman get this upgrade!!!! If you can not afford a higher end marker start with a Tippman and later upgrade to a reg then the lp kit. Once you have the lp kit you won't go back, GUARANTEED.
A - 5
alot of others
This is the next best way to silence and improve the accuracy / consistency of your gun, after purchasing a good barrel. Use the low pressure kit with a J & J Ceramic barrel and you'll have one tight Tippmann 98 Custom. If you allready have a 98Custom, strongly consider it. If not, check out the Automag.
Expensive for people low on cash, good deal if you have money to spend. I'd give it a 10 / 10 if retailed for $70; at that price every Tippman owner should get one. Seeing its $110, i only recomend for those with the extra cash.
Don't forget the extra dough for the secondary regulator. $$$$$$$
I recomend this product with a J & J Ceramic barrel if $110 doesn't bother you. I gave this an 9 / 10 because for those who need to watch their money it probally isn't worth the $110.
easy to install
rear cocking (internals cleaner)
velocity adjusting on 2ndry regulator ( I like this location better)
2ndry regs with nitro are much better than expansion chambers with CO2
Tippmann supplies a FREE beaver tail, made of aluminum (bends easy); I went to the local hardware store, for a couple dollars, purchased 1/8th steel rod and bent into shape to replace the aluminum. Beaver tail problem solved.
It's worth the $120; you get the advantages of nitro over CO2. My shots are tight, can't wait to install responce trigger with 12 volt rev.
98 custom low pressure kit, double trigger, hyper star bolt, wgp ergo reg, air gun designs flatline nitro tank, dye aluminum barrel, 12v revvy w/ x-board
great upgrade allows u to use nitro instead of Co2, so u get all the benefits of nitro like consistency etc....... the price isn't that bad. I think its worth getting just so you dont have to unscrew the damn co2 tank everytime you run out of air.
makes your gun heavier, some ppl may think it is too expensive.
this is a great product that will improve the performance of your tippmann, and is a must have if you want to get a RT great combination, people always say after all the money i put into my tippmann i could have got an autococker or something like that, well if you have that much money right away then get one of those guns but if you dont then get a tippmann and upgrade little by little like i did, it took me 2 years to upgrade it all the way so its not like i bought all my upgrades at one time i dont have that kind of money like alot of other people, so get this you wont regret it.
tippy 98c drop forward (4fwd 1down), PB double trigger, bigshot, flatline, 12v rev, pure E inline reg (soon to be annoed)
save for the front bolt and the linkage arm, this kit COMPLETELY replaces the gas internals of the gun.
Lowers the operating pressure to @300psi.= more shots per tank
Complete swap, so you don't need to buy a bottom line, bolt, expansion chamber all separately...
the volumizer looks WIIIIIICKED, and is a great grip.
Cost. $120 msrp is a bit steep for some.
Separate regulator required for the kit to work ($40-120)
Most people THINK this is a NITRO ONLY, which turns people away.
You can't install a rear velocity adjust with the LP bolt.
no beaver tail. if you're gimpy enough, you'll goggle yourself with the rear cocking bolt. HARD TO DO unless you're trying to tongue kiss the marker.
GREAT product, with a high but JUSTIFYABLE price. I payed as much for my kit as I did for my marker. I don't care. for $300 Ireg, lp kit, 98).
While some would say "get a better gun instead of spending more on your tippy, consider that
EVERY damn gun in this price range has something you'll want to upgrade
spyders = bolt, barrel, drop forward...
cocker = oh wait, you can't buy a cocker for 120 bucks
I love my tippy. the lp kit rocks. price kinda hurts until you price separate things like bolt, bottom line, rocket cock, rear vel adj, etc....
-extremely air efficient
-also works with CO2 with the right reg
-works with any air/nitro tank with the right reg.
installation was a snap if you know the internals of your marker. total time spent: about 10 minutes (once I fixed the 2 problems. hopefully most wont have to do this)
when I recieved it, two things were defective.
One: the cocking rod was not alligned properly with the hammer so when the hammer slid back and forth, it was crooked in the chamber, causing to much friction to cock the gun. I had to bend the cocking rod to straighten this problem out.
Two: the vertical adaptor T (where the lowpressure chamber and the valve connect) was appx. 90%% blocked by an excess of pipe coming into the T joint. When I first installed it and aired up the marker, it took 600+ psi for the marker to recock itself. I called tippmann and they told me to check for the previously decribed blockage. sure enough, once I drilled that out, the marker works perfectly with 300 psi !!!! thats not a typo! three hundred psi ! Apparently, there have been many reports of this problem, so if you need alot of pressure to shoot (more than 400psi) then you might want to check this out.
Assuming you get a non-defective kit, this upgrade is the greatest thing you could ever do to a m98/98c.
You must buy a regulator that will reg down to 300 - 400 psi. without this you will not be able to make the marker shoot under 300 fps. I am using a ANS Gen-X running 300psi with an ACI bulldog nitro tank preset at 850psi. The ACI tank is notorious for shootdown (shooting faster than the tank can supply air) but since the operating pressure of the marker is now 300 - 400 psi, you cant outshoot the tank. (with a decent reg)
Ignoring the defective parts, This kit is incredible. I am giving it a ten because Im sure the defects were a fluke, and if the kit came to me in working order I would definately give it a ten, so that is the way I will judge it.
-Noticeably less recoil
-Greater efficency (i went from 700 shots out of my 68/3k; to *1300* shots!)
-Makes your 98 HEAVY, HEAVY, HEAVY
-Must purchase a regulator to install
-No beavertail available for it yet
These retail for about $120. Although i have GREATLY enjoyed the benefits of this kit; when weighing it's pro's & con's, it's really just too much for what you get. If the price were lower, i would say go for it. But you're going to buy the kit ($120) then a regulator ($50-100), and when you're done, you'll have spent almost enough to buy an electronic gun. (Impulse, etc.) I'm giving it a 7 because of it's HIGH cost. If it were cheaper, that would change things.
This is awesome i just palyed with it yesterday. First it shoots very silent compared to co2 with an expansion chamber. It sounds almost like an autococker now. my gun now shoots extremely accurate and the balz dont drop off after a few shots like they did with my co2.
It may only be a hundred but it wont work with out a reg. so after you by the reg tank and low compression you wind up dropping like 4 hundred dollars,
I would suggest this to any one who plays alot and wants improved performance and accuracy and likes thier tippman and does not want to but a cocker or something,