Does better effeciency mean less reliability?
I thought of this the other day...basically i took an Odessy RPM valve pin and Grinded a slot in it using a dremal bit on my drill press, (a very clean job btw). So it will vent out for blowback and put it in my friends Spyder. I made it a little bit deeper of a "vent" slot then the one that was in the Spyder before. This will probably result in two things, A) too much gas shooting back towards the hammer, which means less effeciency and B) more reliable re-cocking? Is this thought correct?
There has never really been a problem with reliable recocking.
So mostly what you end up with is more blowback than you need, being pretty hard on the bumper, efficiency, and the vibration/recoil/kick whatever you want to say, that the hammer produces.
You may, however, be able to lower the input pressure because of the increased flow of blowback gas.
The increased flow of blowback gas will take away pressure from the bolt and therefore the paintball. You will need to raise the pressure past the point where it will cock the gun, in order to achieve reasonable velocities.
So itl be inefficient and will cycle backwards with more speed than before.
RussC is right, this is why the valve is the most important part of any High Efficiency setup. With more volume of air being moved around, less pressure can be used. Finding the sweetspot is where increased effieciency happens.
My setup ran at 380psi. While that may not be as low as other Spyders, it's where I get the best efficiency, something like 1500 shots off a 68 4500 or a full case and a bit more when I was running Co2
Cunha interestingly enough is also right. Without a regulator to reduce the pressure going into the valve, velocity will be ridiculously high and the recoil might or might not rattle the marker to bits.
Krytos, at last a flake of common sense among a sea of low pressure stories. Well done.
I've often wondered about this passion for super low pressures. These are blowbacks and not some snazzy fancypants spool setup. Too many seem to forget that.
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