Vortek PG4 HO kit TX200

[DeanB]

I installed the PG4 HO kit in my TX 200 mkiii .22 about a week or so ago and it has about 300 shots on it, ran it thru chrony today and its only averaging 12.79 ftlbs or a bit less with 14.3 gr Crosman pellets and JSB 18.1 gr.. it was hitting 14ftbs with 14.3 gr pellets with stock spring about the same for 18.1 gr JSB which its the most accurate with..
All my other Vortek kits in other guns shoot up to specs, any of you guys have the TX mkiii w/PG4 HO shooting these numbers..
I'm wondering if somehow I received the 12ftlb kit instead, have a email in to Tom waiting to hear back from him.

 

[Sqwirl57]

Did you install a Vortek piston seal too? If you didn't resize the seal manually it may take time to resize itself. Until then power will just slowly climb.

 

[DeanB]

yes I did install the seal but didnt resize it, never thought of that your probably right.. Never resized any of the others but may of just gotten lucky.

 

[Orv]

I recently installed the Vortek SHO PG4 tune kit in my TX200. I also installed the piston seal and my question is: how should have I resized it? Although it was a very snug fit, it seemed to fit the end of the piston nicely.

 

[Sqwirl57]

I recently installed the Vortek SHO PG4 tune kit in my TX200. I also installed the piston seal and my question is: how should have I resized it? Although it was a very snug fit, it seemed to fit the end of the piston nicely.

Don't bother resizing the Vortek piston seals. Just shoot it and it'll resize it'll resize itself over the next tin. You'll likely see your velocity climb a bit as it does.

 

[Orv]

Don't bother resizing the Vortek piston seals. Just shoot it and it'll resize it'll resize itself over the next tin. You'll likely see your velocity climb a bit as it does.

Thank you, Sqwirlfgugger. Just out of curiosity then, how does one go about resizing the Vortek piston seal and, when would it be necessary? Thanks, Orv.