PSI for classic valve

[nixcamic]

I've already tryed searching for this and couldn't find anything, which is probably due to me sucking at useing search, not because it doesn't exist.

What is the minimum psi an unmodified classic valve can run at?

[Asym]

The classic regulates to around 400-450PSI. So you should be able to run it down to about 450-500PSI, but its been talked about many times how the AIR valves recharge is affected by the input pressure. The higher the input the faster the valve will recharge.
With my classic I can shoot the tank down to 500PSI which is the lowest value on the gauge, once I hit that I really don't know how many shots I have left.

[nixcamic]

ok, thanks

[Coralis]

I would run it at 800 or so for optimal recharge rates. Yes you could run lower but recharge will begin to suffer .