Is the point where the hpr is about to dip the most efficient point? Like if I stop 1 full turn before the pressure dips then screw the ivg in one extra turn.. is that technically more efficient ? Or is the part just before the valve gets overloaded still the lowest pressure than can run through the hpr?
@MarkeetMD In theory, the sweet spot is the point at which the bell curve for the hpr pressure and the bell curve for the hammer spring pressure intersect at the lowest possible value that still results in being able to reach desired velocity. That being said, there are a ton of other variables in the equation of achieving velocity in a cocker. Efficiency throws even more variables into the equation as things like flow path, turbulence, friction, volume, etc. can cause major disruption to the airflow, which would result in needing higher pressures to achieve velocity and causing negative effects on efficiency. So I guess the answer is, I'm honestly not 100% sure. In my experience, it has been at the "sweet spot" that I find the best mix of efficiency and velocity, but I haven't run enough tests to give you a definitive yes or no on the subject. To satiate both our curiosity, give your experiment a shot! I'd be interested to see whether you found a notable drop or increase in efficiency. I think I know the answer, but I don't have the figures to be confident, and I don't want to give you bad info. There's more than enough of that on the internet.
@@kccockerdoc awesome. Thanks man. Really been enjoying these videos and have been embarking on autococker journeys for the first time this year. Having a ton of fun.
@@MDPB3 cockers are an absolute blast, especially if you like to tinker with stuff. I haven't uploaded in quite a while, but I hope the info that's on here can be of help to you, man. And if you ever have questions, feel free to reach out!
On a cocker, your lpr has no bearing on your velocity. All it is responsible for is providing enough pressure to the pneumatics to cycle the marker reliably. So if you're setting up a new build, you can run your lpr as high as you need to make sure it cocks correctly while you set your velocity, then adjust it to your personal preference if you would like it higher or lower.n
Great video! I am having trouble getting the velocity DOWN.. I backed the Ivg out, still shot over 290fps. I hit the reg and got the fps down, but the pressure wasn't high enough in the hpr to get the bolt far back enough. I ended up chopping balls, or was unable to get them into the breach. What should I try next? I do have the hpr up again and it's cycling fine, but the fps is for damn sure over 325fps. I'd like the kids I shoot to come back to the field again 😂 Thanks in advance
Well your hpr shouldn't dictate how it cycles unless you have it waaayyyy too low and it's not supplying enough pressure to the lpr. Try running your ivg flush, then zero your hpr and slowly walk it up until you hit field velocity. If you're having cycling issues, try turning up the lpr. If you're having to run the hpr low enough that the lpr doesn't want to function correctly, which would be surprising, you may need a lighter hammer spring to give yourself a little more wiggle room.
@@odiespankers07 if you still have issues, let me know and we can get a little deeper into it, but in general you should be able to flush your ivg, zero the reg, and walk it up slowly.
Great videos I'm learning a lot for my first Autococker rebuild
This was mad helpful
Is the point where the hpr is about to dip the most efficient point? Like if I stop 1 full turn before the pressure dips then screw the ivg in one extra turn.. is that technically more efficient ? Or is the part just before the valve gets overloaded still the lowest pressure than can run through the hpr?
@MarkeetMD In theory, the sweet spot is the point at which the bell curve for the hpr pressure and the bell curve for the hammer spring pressure intersect at the lowest possible value that still results in being able to reach desired velocity. That being said, there are a ton of other variables in the equation of achieving velocity in a cocker. Efficiency throws even more variables into the equation as things like flow path, turbulence, friction, volume, etc. can cause major disruption to the airflow, which would result in needing higher pressures to achieve velocity and causing negative effects on efficiency. So I guess the answer is, I'm honestly not 100% sure. In my experience, it has been at the "sweet spot" that I find the best mix of efficiency and velocity, but I haven't run enough tests to give you a definitive yes or no on the subject. To satiate both our curiosity, give your experiment a shot! I'd be interested to see whether you found a notable drop or increase in efficiency. I think I know the answer, but I don't have the figures to be confident, and I don't want to give you bad info. There's more than enough of that on the internet.
@@kccockerdoc awesome. Thanks man. Really been enjoying these videos and have been embarking on autococker journeys for the first time this year. Having a ton of fun.
@@MDPB3 cockers are an absolute blast, especially if you like to tinker with stuff. I haven't uploaded in quite a while, but I hope the info that's on here can be of help to you, man. And if you ever have questions, feel free to reach out!
THATS MY TWISTER IN THE BACK NATHAN HI ITS ME OMG
were should u have the lpr set while doing all this on a fresh build
On a cocker, your lpr has no bearing on your velocity. All it is responsible for is providing enough pressure to the pneumatics to cycle the marker reliably. So if you're setting up a new build, you can run your lpr as high as you need to make sure it cocks correctly while you set your velocity, then adjust it to your personal preference if you would like it higher or lower.n
Great videos im learning a lot for my first Autococker rebuild
Great video! I am having trouble getting the velocity DOWN.. I backed the Ivg out, still shot over 290fps. I hit the reg and got the fps down, but the pressure wasn't high enough in the hpr to get the bolt far back enough. I ended up chopping balls, or was unable to get them into the breach. What should I try next? I do have the hpr up again and it's cycling fine, but the fps is for damn sure over 325fps. I'd like the kids I shoot to come back to the field again 😂 Thanks in advance
Well your hpr shouldn't dictate how it cycles unless you have it waaayyyy too low and it's not supplying enough pressure to the lpr. Try running your ivg flush, then zero your hpr and slowly walk it up until you hit field velocity. If you're having cycling issues, try turning up the lpr. If you're having to run the hpr low enough that the lpr doesn't want to function correctly, which would be surprising, you may need a lighter hammer spring to give yourself a little more wiggle room.
@@kccockerdoc thank you! I'll give this a go this week.
@@odiespankers07 if you still have issues, let me know and we can get a little deeper into it, but in general you should be able to flush your ivg, zero the reg, and walk it up slowly.