Announcing the FX Impact MKII w/ FX Power Plenum
- Thread starter FX-USA
- Start date
I was wondering where this huge efficiency gain could come from and am starting to think it comes from larger temperature swings in the plenum:
As I’m envisioning it, the plenum ultimately reaches a pressure that is greater than where the regulator actually cuts off flow. As gas exits the cylinder and enters the plenum, there is a large drop in pressure that creates a corresponding temperature drop (we’ve all noticed the repeated 300bar to 120bar drops from successive shots can cause a noticeable chill); the initially-cold air sent into the plenum then warms to room temperature causing its pressure to rise beyond the regulator cutoff point.
The lower regulator settings available in a Power Plenum setup will cause even larger drops in pressure and, therefore, larger initial drops in temperature. So, this setup ends up “stealing” more energy from the ambient environment as the plenum temperature then equilibrates back up to room temperature.
If this theory is correct, the efficiency boost should be less on a cold day.
I’m relatively new to air gunning, so I may be talking out of my ass... to the more experienced, does this sound believable?
As I’m envisioning it, the plenum ultimately reaches a pressure that is greater than where the regulator actually cuts off flow. As gas exits the cylinder and enters the plenum, there is a large drop in pressure that creates a corresponding temperature drop (we’ve all noticed the repeated 300bar to 120bar drops from successive shots can cause a noticeable chill); the initially-cold air sent into the plenum then warms to room temperature causing its pressure to rise beyond the regulator cutoff point.
The lower regulator settings available in a Power Plenum setup will cause even larger drops in pressure and, therefore, larger initial drops in temperature. So, this setup ends up “stealing” more energy from the ambient environment as the plenum temperature then equilibrates back up to room temperature.
If this theory is correct, the efficiency boost should be less on a cold day.
I’m relatively new to air gunning, so I may be talking out of my ass... to the more experienced, does this sound believable?
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Thanks Darren. I just see that's even 20€ cheaper in Spain than in The Netherlands
In Spain the price is exclusive of tax,
price with tax 143 €.
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I have an Impact X cal .25 (600mm), serial number: 19007*. I have elongated the transfer port and pellet probe and replaced the C3 bumper with delrin, and installed Huma regulator.
I just made an order of the Power Plenum Kit from EuropeAirguns to Finland.
Now this sentence from the first post catched my eye: " Owners of previous generation Impacts can still be upgraded but will require additional parts & service depending on the generation Impact you have."
So, in my case, what those additional parts would be?
I just made an order of the Power Plenum Kit from EuropeAirguns to Finland.
Now this sentence from the first post catched my eye: " Owners of previous generation Impacts can still be upgraded but will require additional parts & service depending on the generation Impact you have."
So, in my case, what those additional parts would be?
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It's not MK2.
Do you mean part B21, part number 19698? Both MK1 and MK2 has the same part numbers?
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Yes they have the same number but i am pretty sure the rear block for power plenum must me changed or modified for the FX first generation.
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For the Impact first generation there is 2 different regulator shape available.
Both fit perfect in my Impact 1 but the first one on this pic is more efficient.
Similar to the MK2 but not the same.
This one is less efficient and resistant
Both fit perfect in my Impact 1 but the first one on this pic is more efficient.
Similar to the MK2 but not the same.
This one is less efficient and resistant
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However, not all information is available and there is no clear answer.
Purchasing a Power Plate Set You Can Put It Into mk2????
The full kit is for sale, everything is fine.
But reading Ernest's answers begins with doubt. he answers both Yes and No.
So who will give the correct answer, is the plenum set perfect for mk2 strokes??
Purchasing a Power Plate Set You Can Put It Into mk2????
The full kit is for sale, everything is fine.
But reading Ernest's answers begins with doubt. he answers both Yes and No.
So who will give the correct answer, is the plenum set perfect for mk2 strokes??
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THANK YOU ! all involved lol. I am happy
You're all welcome
... even to the one taking this opportunity to snuggle up. Upvote 0
The larger volume version being produced in Poland fits any impact, just tell him MKI or MKII.
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Other companies being obsolete cause of this?? that ain't happening lol. This is nothing new and innovative. Many other guns have add on plenums and hell other guns start with larger plenums. Raptor mini has a 60-65cc plenum and regular raptor 85cc. Plus FX has to rely on 700mm barrels for the best results. And the "no one shoots, harder, faster or as many shots" also isnt true. But believe what you'd like.
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I’m with both of you. 100% increase in shot count defies the laws of physics. When adding a power plenum to a Cricket or an EDGun, the shot count usually goes up 15 to 20%, due to increased efficiency and lower reg pressure for the same power. 100% increase under the same fill pressure at the same power is not only unbelievable, it’s physically impossible. Unless of course you’re a science denier.
Agreed there's no way the increase can be 100%. Maybe the .30 would benefit the most as they struggled with power before but no way that much. Others would have done the same thing with the aftermarket products and haven't seen that yet.
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