HW97K Vortek kit.

[BenjiHunter]

I just ordered a Vortek kit for my HW97K.
I'm wondering, how many spacers do you use in your Vortek equipped guns and why?

[grauhanen]

After you install the Vortek kit, chrony the rifle over a number of long strings (to give it a chance to settle a little).  The kit does not always produce the energy that you desire.  You can add spacers to gain a little more power. 

[nytebyte]

I started with 2 spacers in mine and it has setteled in at 860fps and that's where I am happy with it.

[Motorhead]

Just did a spankin new 97K .177 with a SHO kit.
After sizing seal ( Which was WAY too snug ) assembled with lubes using 3 of the 5 spacers.
Shooting FTT 8.64 gr pellets rifle was stable right about 870 fps making @ 14.5 ft lbs.

Snappy and solid shot cycle .....

[BenjiHunter]

Thank you.

[palonej]

Stefan, Scott did mine when she was brand new with a PG2 HO kit. Power was right at 15 fpe.....~ 800 fps with 10.3. The rifle LOVES the Air Arms 10.3......insane accurate.
That spring lasted ~ 50,000 rounds and was smooth as oiled glass from day 1!!!
Cocking stroke silent and silky.
Accuracy off the chart.
Had a new member come by the house. He never shot a springer.
He couldn't miss with the 97 and has since purchased one!
Enjoy and let us know how you like her!!

[BenjiHunter]

Stefan, Scott did mine when she was brand new with a PG2 HO kit. Power was right at 15 fpe.....~ 800 fps with 10.3. The rifle LOVES the Air Arms 10.3......insane accurate.
That spring lasted ~ 50,000 rounds and was smooth as oiled glass from day 1!!!
Cocking stroke silent and silky.
Accuracy off the chart.
Had a new member come by the house. He never shot a springer.
He couldn't miss with the 97 and has since purchased one!
Enjoy and let us know how you like her!!

Thanks, Joe.
Sounds great.
I'll let you know how it shoots.

[Booger]

I do not have a clue what Gene did to mine but I am getting with JSB 8.44:

LO   864.20   14.00
HI   877.60   14.44
AVG   870.86   14.22
ES   13.40   
SD   3.92   

[BenjiHunter]

I do not have a clue what Gene did to mine but I am getting with JSB 8.44:

LO   864.20   14.00
HI   877.60   14.44
AVG   870.86   14.22
ES   13.40   
SD   3.92   

Great numbers, Jesse!

[BenjiHunter]

One question.
Is it hard to get the piston seal on to the piston?
If so, is there a trick to it?

Thank you.

[Caiman11]

I used three spacers and i like it.

[BenjiHunter]

I put 4 spacers in mine and it shoots great.

[DanD]

One question.
Is it hard to get the piston seal on to the piston?
If so, is there a trick to it?

Thank you.

I have good luck heating the seal in boiling water to soften it, then put it on a hard surface and push the piston on to it. I used to pry them on like a tire onto a rim, but got the push down idea from a thread here, and it works great.

[BenjiHunter]

Thanks, Dan, I'll try that.