Power plenum on Wildcat mk2 ?

[GAMMA]

Hi,

ive googled to get some reviews on whether the Huma power plenum (btw, open to other brands) works well on the Wildcat Mk 2. I’m most interested in .22 version, but generally interested to hear feedback on the power plenum upgrade.

anyone had success with it?



thanks

 

[RobR]

I installed one in my .25 compact and am very pleased.

 

[GAMMA]

Cool! How hard was the install? What kind of results are you getting?

 

[RobR]

Simple as a regulator adjustment. Pushing the NSA 26.8 at 890 FPS on 150bar , might be able to get 3 mags out of it but have been refilling after 2. Haven’t played with it much, I’ve been waiting on the FX hybrids though I’d much rather give my money to Nick. 

 

[JoeKool]

The Huma 30cc XL Power Plenum turned my FX Wildcat MKII.25 into power house of a hunting bullpup! Great power and accuracy at long range!!! Seven eight shot magazines 56 shots per fill! 600mm .25 caliber slug “A” liner and some sweet tuning.

 

[tsmith]

The Huma 30cc XL Power Plenum turned my FX Wildcat MKII.25 into power house of a hunting bullpup! Great power and accuracy at long range!!! Seven eight shot magazines 56 shots per fill! 600mm .25 caliber slug “A” liner and some sweet tuning.

what is your reg set at? do you have any full shot strings with pellets? what was your gun doing before the plenum ?

 

[JoeKool]

The Huma 30cc XL Power Plenum turned my FX Wildcat MKII.25 into power house of a hunting bullpup! Great power and accuracy at long range!!! Seven eight shot magazines 56 shots per fill! 600mm .25 caliber slug “A” liner and some sweet tuning.

what is your reg set at? do you have any full shot strings with pellets? what was your gun doing before the plenum ?

what is your reg set at?

130 bar



do you have any full shot strings with pellets?

no sir, unfortunately I don’t have any “full” shot strings (my shot count stayed the same compared to before the plenum install, but the gun has more fpe now) 



what was your gun doing before the plenum ?

here are a couple of chronograph shot strings with the Wildcat MKII before the power plenum, using AA 25.4 grain and the JSB 33.95 grain. Huma regulator was then @ 135 bar. *Note* I do not tune for absolutely the most power. I tune for a little better power that maintains a good shot count! Good power, keeping some efficiency “that’s what I like”!


Air Arms 25.4 grain

JSB 33.95 grain

 

[bertman77mk2]

Do you purchase direct from HUMA or one of the advertisers??

 

[JoeKool]

Do you purchase direct from HUMA or one of the advertisers??

Huma-Air.com



https://www.huma-air.com/FX-Wildcat-Internal-Power-Plenum-XL-30cc

 

[Mvillano2386]

I just installed it on my WC MK1 22. Stock settings was 9 1/2 hammer turns and the stock reg settings im getting 879 to 898fps on jsb 18.

Installed the huma reg with xl plenum set at 125bar gun shoots at 965fps. Turn the hammer down to 7turns it shoots 916 to 920 using same jsb 18.

 

[bigwill336]

Would anyone be willing to post a video on how they installed the huma regulator and internal power plenum in their FX Wildcat?

 

[madeintheuk]

I’m curious to know how the air usage doesn’t decrease after installing the huma xl in the air tube. It’s obviously taking away from the air reserves, so are shot counts going down? 

 

[jorge63]

I have the same question, how's the shot count going? the original cylinder is 230cc, the plenum 30cc, discounting the original plenum, there should be a decrease in volume of about 20cc, which is 10%.
What is gained in power is 8% according to what a member of the forum put. Could it be that by regulating to the original power you can get more shots than without the PP? for it to be worth it?