OK, I get that.
It looked to me as if he was saying that he would have to fill more often if he started with a higher pressure in the tank.
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Umarex Notos help!
- Thread starter doninva
- Start date
OK, I get that.
It looked to me as if he was saying that he would have to fill more often if he started with a higher pressure in the tank.
Some people are just abrasive and I'm sure we all can figure out who that person on this forum has been as of late.
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Can somebody answer the question in the first post about how much are the od, length and thickness of the stock hammer spring
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Let's see, when the pressure gets to low to fill my gun, l have to hook my tank to the Altarous booster and fill back up. I would like to do this as little as possible. How's that being a jerk? Don
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Dude, are you having a bad day? Farily simple to understand. If l fill my gun to 3300psi, l get more fills from my tanks than filling my gun to 3650psi. Not trying to be a jerk. Don
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Yes, l have two tanks to fill my guns with. I will need to fill tanks more often if l fill my guns to higher pressures. Don
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OK, l dropped regulator to 1900psi but can't get fps above 715fps with hammer spring all the way in or out. How is it possible to get the JSBs 13.43s to 775fps - 800fps? Is porting the only way? My gauge is is in mpa and not sure it's accurate. I did 13 mpa (1900) so l'm not sure where to go. Don't want to go down the porting route. Don
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I wasn't confused whatsoever, no apologies needed, you were clear and concise...apologies on behalf of the guys mucking up the thread.
It is likely you'll need more hammer spring to create more lift and dwell at higher pressures. You're asking a lot of the notos to get the 13.43's up to 800 fps with stock ports/barrel/plenum and hammer/spring.
Tossing in a lighter valve spring, or a heavier hammer spring, or shimming the current one if there is more meat on the preload than the adjustment allows are two simple approaches that are reversible if you want to approach it from that angle (higher pressure on regulator to achieve more fps). Quite a few ways to skin the cat.
-Matt
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Thanks, l don't want to go down the porting road, right now. I have a lathe and mill but want to keep my options open. If l port, there is no going back. My thought was to get some heavier hammer springs to test. This was one of the the reasons for my thread. I want to buy a couple different springs to test. Just thought someone would know the oem spring size. I guess l'll take my spring out, measure and put back together. Don
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If you go that route, definitely consider a lighter valve spring as well, however that would require more in depth tear down including degassing.
-Matt
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OK, found the hammer spring size on the parts list:
9mm od × 1.1wire diameter x 60mm long
.345 od × .043 wire diameter x 2.36 inches long
9mm od × 1.1wire diameter x 60mm long
.345 od × .043 wire diameter x 2.36 inches long
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