Umarex I sipped the Notos Kool-aid
- Thread starter Tango Sierra
- Start date
Just as I said:
"... you will have way too much weight way too far forward and its WAY too big around at 61mm!!.
Trust me! 54mm OD vs 61mm."
The 61mm aluminum tank will not fit under the moderator housing and the weight will be unbalanced and way too far forward.
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Firewalker,
Thank you for your reassurance in the items. I do enjoy putting together regular rifles and am sure will enjoy PCP ones as well.
I do hope the best for your dad and your family.
Chad
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Sorry noob here when it comes to airguns.
Can you show or point out on the picture of where / how you released the pressure on the drop block before you unscrewed it?
Also, If I purchased this one below, would I just loosen the screw that I have circled? Thanks again,
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I've got one like that and I loosened the nut and turned the Allen screw counter clockwise and it didn't change the reg pressure. I turned it more and still nothing.
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thats pretty healthy shot of air lol. What fps ? 800+ maybe. I’m shooting 680/690 fps at 1450psi
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No I was 740fps average with stock setup shooting Jts 18.1 With this I'm getting 714fps. I'd like to get back to around 750fps
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with the stock setup you have some space behind the regulator. with the z block you lost that space. if you have your stock tube check out how much room behind the reg.
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you lost some yes. you can shoot a lighter pellet. i did the exact same thing. but i hit ebay and picked up the 15cc plenum and add it.
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Shaky2
Which Z-block you get? The Huben or the Qupb? I've used both. Some tradeoffs. The Hubens adjust to atleast 2500psi whereas the stock Qupbs top out around 1800. I added a shim washer in the Qupb zblock reg and can now adjust up to atleast 2400psi. Haven't tried any higher. The Qupb zblock has a larger body and thus larger plenum volume so you won't lose any fps at same reg pressure as stock Notos. Likewise adding the eBay 15cc plenum along with the Huben Z-block and you'll be back up at same or higher fps. One thing else with the Qupb zblock, the foster fitting base is much larger than on the Huben so it makes adding the bipod not as streamlined. It has to sit closer to the trigger guard. Both Z-blocks have outstanding regulators on them. If you're going for a power boost, up around 25-26fpe, you can bore out the tube adapter port and transfer ports. I've done this on 3 rifles with great results. With reg at 2200psi I'm up at 880fps with CPHP 14.3gr, 850fps with JSB 15.9gr and 750fps with H&N 21.1gr. HS 2 turns in with stock spring.
Which Z-block you get? The Huben or the Qupb? I've used both. Some tradeoffs. The Hubens adjust to atleast 2500psi whereas the stock Qupbs top out around 1800. I added a shim washer in the Qupb zblock reg and can now adjust up to atleast 2400psi. Haven't tried any higher. The Qupb zblock has a larger body and thus larger plenum volume so you won't lose any fps at same reg pressure as stock Notos. Likewise adding the eBay 15cc plenum along with the Huben Z-block and you'll be back up at same or higher fps. One thing else with the Qupb zblock, the foster fitting base is much larger than on the Huben so it makes adding the bipod not as streamlined. It has to sit closer to the trigger guard. Both Z-blocks have outstanding regulators on them. If you're going for a power boost, up around 25-26fpe, you can bore out the tube adapter port and transfer ports. I've done this on 3 rifles with great results. With reg at 2200psi I'm up at 880fps with CPHP 14.3gr, 850fps with JSB 15.9gr and 750fps with H&N 21.1gr. HS 2 turns in with stock spring.
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I have the QUPB. I'm not too worried about getting the fps up cause I'm sure more HS tension or adding the eBay plenum would raise it to where I want it. I just couldn't figure out why the reg adjuster done nothing. Loosening the lock nut the hex screw was free to move in or out with no resistance. The reg gauge shows 2100psi and a full turn CC done nothing
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If you decide to increase the reg pressure, completely degas the rifle and then you can disassemble the reg and add a spacer shim. I used a SS washer I had on hand that was 16mm od x 7.4mm id x 1.45mm thick. I first sanded off the washer burr edges on a 400g sanding block. I used a snap ring tool to unscrew the reg access cover. Rounded needle nose pliers would likely work too. Remove the Belleville washers, 12 of them, and drop the shim washer in the reg cavity then replace the Belleville washers just like they came out. Here's the stackup that I had in mine. Inner ->shim | ))(( ))(( ))((<- Outer. Tighten the access cap back down. Loosen the adjustment locknut and tighten the adjustment screw CW to loosely seat it then back it off ~1/2-turn. Add the bottle fitting and the test cap on it. If the zblock is off the rifle, install the valve assembly on the other end. Hook up to your compressor and pressurize up to ~3kpsi. Watch the reg gauge, it'll only come up to around 600-800psi. Now you can slowly adjust the reg screw CCW until you are at 2200psi or so. Give that a try. If it's where you want it, degass the zblock and mount up on your rifle. I suggest keeping the test cap on for the initial fill and shoot a few shots to see where you're at velocity wise. At 4000psi on the inlet gauge, you'll get a few good shots with the reg test cap on there. This is faster than filling the 220cc bottle to get things dialed in. If it's shooting where you want, degass and swap in the bottle. If still too low, bump the reg up CCW another 50-100lbs. If too high, degass and adjust screw CW ~1/4turn inward. Pressurize and test it again. Adjust it until it's where you want it. On the QUPB Z-block I loosen the foster fitting to degas. The setscrew in the bottle adapter fitting is a bottle isolation "valve". Degassing with it resulted in a damaged/cut
oring on mine. That setscrew needs to be loosened ~3/4-turn to allow bottle to fill.
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Wow! Thank you. You really went into detail on how to do this. I'll have to make a decision on which way I want to go on this. At this time I'm not sure I care much for the bottle setup.
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I've been a busy elf. I modified a couple more Notos's for Xmas gifts. Turned our great. Again used the Huben Z-blocks and 220cc bottles. I gave both a bit of tweaking too. Cocking lever smoothing, Breech and barrel polish, trigger job, power boost mod and I printed moderator inserts as well as several mags for each. I think my son and brother will be thrilled. Find out later today. I'll let them pick their own optics. Should be all set for a springtime Notos league!
Happy Holidays!
Happy Holidays!
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i’m not joining the bandwagon. i had presale tickets to the drop-block and bottle show.. lol. elemental cheers!
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