Fx Impact Fix & Mods for more FPS / FPE
- Thread starter AirSupply
- Start date
A delrin washer. You can order them from FX USA but in my opinion they should give them to Impact owners since the urethane ones are garbage.
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Very weird from FX not to change the C3 bumper even with upgrade C3 with the MK2 did not hold for less then 1000 shots very easy to figure it for FX by why not to do the move ? And change it with delrin
reg at 145
reg at 145
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After fine tuning my mk2 impact. Shot a 8 shot group with jsb redesign at 945 fps at 50 yards.
Note: Shot with A pellet Liner
Note: Shot with A pellet Liner
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The reason for not changing the C3 o-ring out is because the MK2 is able to accommodate 4 different barrel configurations, and at .177 and .22 the C3 bumper is actually required to be able to tune the gun at lower regulator pressures. Yes, the larger caliber barrel configurations should be supplied with a delrin washer, but then it may not be able to get a good low-pressure tune as it comes from the factory and not everyone is as power-tune hungry as us!
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Ur right but i think 95% impact owner are hungry for tuning there airguns they should at least supply the delrin as added item for .22 and up with extra O-ring kit 
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Any idea on groups at that just barely under sub sonic speed with the 50's or 44's? Be a heck of a coyote hunting gun.
jking
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any info on shot count at these fpe numbers? I ask, as I have a Talon/Dor .257 shooting 84 gr. slugs, but shot count is pitiful. Looking at either the Raptor or Impact in the future. Really don't care for the Talon/Dor's single shot system.
Knife
Knife
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With the valve stop not adjusted it wastes a lot of air. Probably 11 or 12 shots untuned on a 480cc tank + 95cc plenum.
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Well that sure beats my Talon/Dor at 3 shots from a 4500 bottle filled to 3600. GRRRRR! ;<)
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@knifemaker With all the same mods as listed above done to my . 30 caliber Impact, but without the additional plenum space, I am getting roughly 20 shots at a 170 bar regulator setting. It hovers around 980fps @ 170 bar. With the additional air flow from more plenum space (like these guys have) I can get even more high power shots with the reg turned down.
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Ur right but i think 95% impact owner are hungry for tuning there airguns they should at least supply the delrin as added item for .22 and up with extra O-ring kit
agree
i mean seriously why they dont provide an o-ring kit for service ! specially the impact lol lots of o-rings
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I just got a plenum and hp kit from a guy in the UK, been testing it for a couple weeks, his kit is totally legit, currently running his plenum and edosan's hammer weight and 6.5mm vs, .22 30 gr. slug at 970 fps 130 bar, Mia Stu Wrycraft, pm him on Facebook, he makes amazing products for the impact!
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Question, with the capability of running the plenum pressure at 125-130bar is there really a need for a hammer weight? I thought extra weight was really needed for like 170bar and up. Stu's kit does come with everything though.
jk
jk
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At 145 bar and higher the hammer weight helps. The gun also has less mechanical noise since the hammer weight kills the ping.
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