FX IMPACT MK2 QUESTION IN .22 CALIBER QUESTION

Forums PCP Airguns FX IMPACT MK2 QUESTION IN .22 CALIBER QUESTION

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    jwrabbit123
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    Hi I just saw FX revamped the IIMPACT CALLING IT MK2 impact saying the air tube chamber is bigger giving it 25% more power , , What FPE are you guys getting ????????????????? 

    ALSO DOES THIS MEAN THE CROWN , DREAM AND W/C WILL ALSO HAVE 25% MORE FPE ?? PLEASE CLARIFY

    LOU

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    Julez
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    Don't think it's in stores already? 

    Bigger plenum only on the mk2 yet I guess. 

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    Eddy1840
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    One guy from Chile was selling the bigger air tube chamber ..

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    heavy-impact
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    Not 25% more power… it's a 25% larger transfer tube (plenum). The other models are designed different and don't have space for a larger plenum.

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    edosan
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    Max fpe on mk2 should be around 140fpe with new the 0.357 cal, in lower cals the only restrictor is the transfer port holes (barrel and probe) and in the smaller cals the cal itself + ports. On 0.22 should be betwen 70-80fpe max (matt dubber just show extreme accurate slugs shooting at 60fpe (30gn @ 950 fps) just adding that plenum to his old impact (probably a few extra mods also)

    When impact mk2 will hit the market… ?donno, considering prior experiences on new fx releases, my bet is sept-nov 2019

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    Shinyknight
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    It is only for the impact. I don't think they making it for the crown. Also like other says, it's not 25% more energy. Its only 25% more air volume in the valve tube plenum. So maybe a few more ft lb but not 25%. And impact x will be able to upgrade to mk2 with the parts once it's release. Max on my 25 Cal I'm getting 55ft lb. I plan to upgrade it. Guessing might hit 60 ft lb.

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    Spray1Mark
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    The max I can get with the Impact current model in 22 is just a tad under 50FPE, thats using the 600mm barrel.

    However they now list a 700mm .22 barrel so with the extra 25% plenum I suspect you could get 60-65FPE using the 33g JSB .22 Beast.

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    heavy-impact
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    I believe the MKII will have a 7.5mm valve so .30 versions should see the most gain in my opinion. I don't know what the pellet probe and barrel transfer port will look like but there may be more room for improvement on those. I hope the design team removed as many restrictions as possible. Aside from R&D the valve assembly should be the only increase in manufacturing cost and not by much. I hope they plan on selling a DIY upgrade kit at a reasonable cost… otherwise I see a nice niche market developing for lathe owners.

    Edit: I may be wrong about the valve size… we'll see.

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    jwrabbit123
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    OK you guys seem to clarified ti , I am going to say then to be accurate

    22 probably 55 to 60fpe 600mm

    25 60-65fpe 600mm

    and 30 prob 90fpe 700mm barrel

     

    please post link of matt shooting 60fpe in 22 but he may have other mods.

    I remember my  impact 25 cal with 600mm barrel got 840 max with mk2 which was only like 53 fpe  this was first gen .

    Heavy impact you means the valve seat is wider to let air out faster ?? 7.5mm you say

    OK then if you install the larger seat what does this do for power ?

    I have made bigger plenums and experimented with them in past  , I believe you can enlarge it to a point  but unless the design is proper to expel it quick before projectile leaves barrel .

     

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    edosan
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    It was on Instagram

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    heavy-impact
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    jwrabbit123

    OK you guys seem to clarified ti , I am going to say then to be accurate

    22 probably 55 to 60fpe 600mm

    25 60-65fpe 600mm

    and 30 prob 90fpe 700mm barrel

     

    please post link of matt shooting 60fpe in 22 but he may have other mods.

    I remember my  impact 25 cal with 600mm barrel got 840 max with mk2 which was only like 53 fpe  this was first gen .

    Heavy impact you means the valve seat is wider to let air out faster ?? 7.5mm you say

    OK then if you install the larger seat what does this do for power ?

    I have made bigger plenums and experimented with them in past  , I believe you can enlarge it to a point  but unless the design is proper to expel it quick before projectile leaves barrel .

     

    The plenum on an Impact is the tube under the barrel just in front of the magazine and will flow without restriction. Larger valve means less restriction and more flow from the plenum. The MKII .30 should make at least 100 fpe since my regular Impact .30 makes that through smaller ports and without the larger plenum.

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    edosan
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    I do have a larger vs 5.8mm (5.5 stock) a hammer spring spacer (more tention) and elongated ports and I am getting almost 1000 fps on 23gn slug on the 600 mm barrel reg at 150b, if you add that plenum and 700mm barrel plus hammer weight, easy over 60fpe. (Waiting for all to install)

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    jwrabbit123
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    WOW I JUST saw Matts group here , this is alot of power 30 gr x 950 is 60fpe Holly cow

    and is gun stable at this tune and pressures ? if it can do this in 22 cal it should exceed 80 in .25 and  100fpe in .30 caliber

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    edosan
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    So far cero issues, but i use the reg on 145. In the x normally. I shoot almost daily

    I believe the main restrictor on 0.22 are the transfer ports, dremel do the trick

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    jwrabbit123
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    ok  how much improvement from porting the tp did it do for you in a .22????

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    heavy-impact
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    jwrabbit123

    ok  how much improvement from porting the tp did it do for you in a .22????

    After porting my 600mm I get 975fps at 100 bar with the 18gn JSB

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    jwrabbit123
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    geeze this is serious increase can I ask when u do this mod are you able to still retain efficiency if you tune say tune it back  to say 30fpe or do you ruin the shot count if u tune it back ???

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    Jorgo
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    In on of the videos they talk about reg pressure  to 170 bars for impact

    More plenium

    700mm barrel

    More pressure

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    heavy-impact
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    jwrabbit123

    geeze this is serious increase can I ask when u do this mod are you able to still retain efficiency if you tune say tune it back  to say 30fpe or do you ruin the shot count if u tune it back ???

    At the moment this is as slow as it will go unless I kill it with the valve stop. My Huma regulator won't go below 100 bar unless I reconfigure it and the power wheel is on min.

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    jwrabbit123
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    wow 100 bar it does this omg  so it would be cool if a tp can be adjusted like a allen bolt with a orfice in it then you can tune both ways .

    do you have to drill  the action and match it or just barrel and isnt barrel just brass adapter  so if you have a few one for pellets one for power ????

     

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