Tuning Slug Power kit what hammerspring ?

[Powerage]

Hi. 



can’t decide what hs to settle with .. the old 57 mm gives me high velocity but power wheel looses its function. The short one doesn’t like high reg above 125. 

 

[Glem.Chally]

That's what the little preload screw is for.

 

[Powerage]

Thank you for the reply. I tried to adjust the preload screw from min 16 mm to max . Still no function of the wheel with the 57 mm hs. 

 

[Glem.Chally]

You went from one extreme to another on the preload screw and the settings on the hammer wheel have no effect? What reg pressure and what do you have the valve adjuster set at?

I have a power plenum style plenum and the original 57mm spring also, I can tune it so the wheel has no effect but can also tune it so it does.

 

[Pysiths]

what caliber are you shooting and how hot do you want to it? I’m using the 22 with 25 grain. I’m using all the parts in power kit and can go from 880 to 1060 FPS using the power wheel.

 

[Powerage]

I’m having the same issue in both my impacts (22 and 25 cal) both 700 mm barrels after installing the slugpowerkit . I can slow things down with the valve knob but it’s not optimal. With the complete kit and the 57 hs things get hot, but it’s only 20 FPS different from min to max. I tried all possible reg settings and hammer settings . 


I decided to look at my 22 cal and replace the 57 hs with smaller one from the plenum kit and the powerwheel now works again. I can now group the 25 grain hp slug at 980 FPS at 100 yards. But this is my max setting reg 125 16 mm pre load. Rising the reg with this hs and velocity drops. I have a bunch of 30 and 34 gr slugs I would like to shot at 1000 FPS. And maybe have the possibility to slow the 25 gr at powerwheel 4.

 

[Butch]

Powerage if you used the complete kit that is probably your issue. When using the 57mm spring you do not need the hammer spacers. If you did install them in your hammer you may want to remove them and try again. 
Butch

 

[Drumsnguns]

If the Power Wheel doesn't turn, then the HSTA is maxed too much, preventing the wheel from actually turning. Back it out a hair until the wheel turns.

If each setting on the wheel gives the same speed then the HSTA screw is too far in....like below 16.00 mm.

Max the HSTA, then use the Reg to find your speed plus say 10-15 fps then back out the HSTA until you see the speed start to drop. At this point check speed on the P Wheel and you'll see speeds drop with each click down on the wheel. This is where you want to be. Then use the Power Wheel to find the best setting for best groups.

I'm using the 57 mm spring and am getting a working power wheel with the above method...

And yes with the 52 mm spring and no power kit you won't get anything above 125 bar and 900 fps.

 

[Powerage]

Thanks for the feedback . I had to up the reg to 150 then everything works and then Fine tune with the pre load screw