Originally Posted by HP_Lovecraft
So lets assume that the SA8 vent vents around 600psi. And the stock SA8 normally operates at 300psi for 290fps.
So, lets fill up that volume with BBs. At some point you will have such a small volume that you will need to run at a pressure JUST BELOW the SA8 vent pressure.
I just about completely filled the dump using 8 nickels, and was still unable to get the vent to "vent" when the reg was cranked out to its max setting.
So that idea might be a dead end, at least as far as a "drop in" solution. That aftermarket safety vent might be the easiest current solution, though I'd rather find one that was externally adjustable.