Notos is 2 months old. Worked great and shot many small game and plinking. But decided to mod it with bottle conversion with canada regulator and big bottle, 500 mm barrel and liner kit and some extras. I was getting 740fps with 3k psi charge. Now after all mods I'm getting 450 fps with 3.5k psi charge. What happened??
Umarex Modded Notos lost fps by double
- Thread starter Snapazonie
- Start date
1MPA=10bar. If youve set reg pressure to 3325psi you're off the reg quick. If you've heightened the pressure on the reg you need to compensate with the hammer spring. 230bar is WAYYYYYYYY too high. I'm getting 835 with 18.13s at just over 150bar.Its regulated the fill pressure doesn't matter at all.
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Do you think the hammer even max spring could do more than barely get a hiss at that pressure ?
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You need to de gas
. What regulator are you using? If you're just using a drop block and tank without a reg you're lucky your gun hasn't popped.
How do you know your reg pressure? are there 2 gauges? If you do have a reg. You need to do gas. The screw the adjustment screw all the way in until you've refilled. Then SLOWLY turn the reg adjustment screw counter clockwise. Anywhere between 14-16MPA is where you want to be . But, you'd be a lot better off if you had a more precise gauge for the reg pressure..
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Ok. Huben dream. Good. De gas completely. Screw the adjustment screw clockwise all the WAY..when there is zero pressure in the tank. Then fill your tank, cock your gun, safety the gun. Then slowly. Move your reg adjustment screw clock wise until you're in between apx 14 and 16mpa
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From that point. Remove your stock... You do this by unscrewing the 4 2mm hex screws in the pistol grips. You will see a flat round large flathead screw in the back of the receiver once the stock is off.. that's your hammer spring adjuster. Start shooting into the chrono. If you're already in an area you want to be. Keep it there and just put your stock back on. If you want to experiment. Start making small clockwise adjustments on the Hammer Spring adjuster screw on the back of the receiver.
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I tried to degas it but it's not like it was so I'm kinda suck on that 
. Noob in the making
. Noob in the makingUpvote 0
There is a small silver screw on the left side of the gun under the barrel in the part where your reg block is screwed into. This is a degas screw. If you loosen it slowly you'll start hearing gas hiss..
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No. And that's not a bolt. Thats your regulator adjustment screw and it's WAY TOO FAR OUT. That's why your reg pressure matched your fill pressure.
That's no go. Look at the picture attached to my last post.
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