Can I buy impact larger valve?

[Shinyknight]

My impact x 600mm max outs 830 fps with 34gr out of box. I enlarge the transfer port and get 850-855 max. I want 950-980 fps with 34gr. I see people posting they hitting that much and I'm struggling to get 880fps. Smh. So I want to know can I buy the larger valve for the impact to get to my goal 950-980? And where can I order one. Thanks

 

[Brian10956]

Contact FX USA

FX Airguns USA
North Carolina
Phone: +1 866 639 0772
[email protected]

 

[Glem.Chally]

My impact x 600mm max outs 830 fps with 34gr out of box. I enlarge the transfer port and get 850-855 max. I want 950-980 fps with 34gr. I see people posting they hitting that much and I'm struggling to get 880fps. Smh. So I want to know can I buy the larger valve for the impact to get to my goal 950-980? And where can I order one. Thanks

Have you raised the reg pressure?

 

[Airgun-hobbyist]

You need a heavier hammer weight or hammer weight spring. also make sure that your pellet probe is not blocking the transfer port.

 

[Shinyknight]

My impact x 600mm max outs 830 fps with 34gr out of box. I enlarge the transfer port and get 850-855 max. I want 950-980 fps with 34gr. I see people posting they hitting that much and I'm struggling to get 880fps. Smh. So I want to know can I buy the larger valve for the impact to get to my goal 950-980? And where can I order one. Thanks

Have you raised the reg pressure?

Using gauge on the impact. Try 140/150/ and pass 150, maybe 160 bar. Hammer max and turn screw till play on the slider next to the hammer wheel doesn't move. Also played with valve in the front, show 4 lines but won't grain more fps so turn back to 3 lines.

 

[Shinyknight]

You need a heavier hammer weight or hammer weight spring. also make sure that your pellet probe is not blocking the transfer port.

All stock. Only modify I did was drill transfer port larger. Where can I purchase hammer or spring? Also is it easy to change it out?

 

[mantech30]

What generation is your impact?

Ernest made a custom valve for me.

Do you plan on installing it yourself?

 

[Bob_O]

Might need a longer barrel for that kind of power.

 

[Shinyknight]

What generation is your impact?

Ernest made a custom valve for me.

Do you plan on installing it yourself?

I have work on other guns. I like taking them apart and figure out how they work and how to put back. Worked on the marauder rifle and pistol and come crosman airgun. But have not work on a gun such as the impact. If it's not too hard I rather just buy the parts and install on my own.

Might need a longer barrel for that kind of power.

I liked how compact the 600mm is. Wouldn't like to go 700mm. Thats the reason I purchased the 600 over the 700. If I can get at least 930-940 that would be nice too.