Reply To: MORE WILDCAT EXPERIMENTS

Forums PCP Airguns MORE WILDCAT EXPERIMENTS Reply To: MORE WILDCAT EXPERIMENTS

Link

Rj
Participant
Member

Congrats on the whaler Chuck . I used to work in the trades, and it’s nice when a customer appreciates a job well done.

I did a little testing today with the plenum you may or may not be interested in. As you know we have more volume with the huma. But the spacer fits loose and there is air space around the outside that’s not getting used, at least efficiently. So I drilled holes around the spacer to use all of the available air in the plenum.

Before the holes 140 bar average 920 fps. After, 930 fps but shot count tanked.  Tore it back apart and dropped it back to 130 bar and was back at 920 again, but I could tell it was using too much air for the two mags I ran over the chronograph. Now what to do?  Off to the big orange store I go!  As it turns out, a half inch PVC coupling fits the tube perfectly with a smaller ID than the stock plenum. I cut a spacer to the correct length, sanded and polished it up.  Turned the reg back to 140 and out to the chronograph I go. To my surprise, average over a magazine was 928. And the best part, it appears to be sipping air now.

To me, it seems a little less volume is more. The stock plenum doesn’t have this much volume. I’ll probably have to tear into again and see what she will do at 150 bar now for curiosity’s sake! What size are the reg o-rings? I’m sure I’ll Need some soon!

Just thought I’d pass it along, may help with the quest for more power and shot count.