Hyper 3 low output pressure

[oats944]

Hello, I have a Hyper 3 hpr and the max output I’m getting out of it is in the 280-300 psi range, which apparently isn’t enough for my cocker to get to 280 fps. Based on some reading I think it should go up to 400 psi? Anyone have a similar issue? I’ve cleaned and lubed it but no change. I put a reg from another cocker on this particular cocker and got to 280 fps with no problem with current springs. Thanks in advance!

[superman]

This was common on the dye regs. They didn't notice until they had a bunch of them out there. docfire sells shims on his website. you likely just need to add one to the stack. Pretty sure he also did a video on this.

[Frmrspec]

I’m surprised you got that high… max I got out of most hyper3’s was like 200. But yeah, adding shims will get you as high as you’d like to go.. you can also swap/remove your valve spring to get your operating pressure lower

[oats944]

Ok awesome, thanks for the quick response guys!

[MrBarraclough]

If you've got an 11/16ths body, using a DYE Lazarus valve will let you run 200-250psi from the HPR and easily make good velocity even with the lightest hammer spring.

[oats944]

Thank you, it’s an 11/16th body but it’s a mid block Black Magic body which I gather the Lazarus valves don’t fit. I wound up picking up a couple belleville washers from Dye to get the psi up some.