How much can I squeeze out of my Disco?

[phgHunterGTS250]

How beefy of a hammer spring can I use before I need to do other things to the internals to achieve more power? Also, are there any helpful links as far as power modding the Disco goes?

[Bhawanna]

i did this mod to a .177 and at full power its shooting 19.5 fpe.  popping kodiaks at 930 fps and crow mags over 1,000 fps.  http://www.gatewaytoairguns.com/airguns/forums/thread-view.asp?tid=16716&posts=11&highlight=disco%20mod&highlightmode=1#M137590

[Gene_SC]

Ya Roger, the new Disco I recieved today has the power adjuster screw on the back. The guy used a wing nut with lock washer..:) I think I can make it look a bit more friendly when I get time.. hehe

[Bhawanna]

i used a nylon #10 screw and cut it for a guide for the spring, then i used a socket-cap screw for the adjuster.  a little "cave-man" looking but IT WORKS!  I am gonna take the action out of the stock and bed the stock with leather.  the action moves a little in the stock and timmy thinks the stock was inletted too deep.  i will treat the leather with ballistol before i do it so it won't collect moisture.  i'll show it to you at the funshoot coming up in a couple of weeks.  btw, if you get bored running the lathe, you could make me a nicer looking power aduster screw....ha!!!  oooppps!...i almost forgot to tell you that you can drill the end cap a 1/4 deeper then you can lower the power down to about 14 fpe and get about 100 shots before recharging!

[shel67]

Man, I've go to get a chrony. I modded my Disco in a similar way, however I used a hollow brass insert as a spring guide. The hollow brass insert still allows the degassing tool to work, with the hole small enough to use the adjusting screw effectively. I should add, that I tore down my Disco after firing about 650 shots and found that the factory spring was slightly arched and bent on one end. As well it measured about 3/16" shorter than the new one I ordered from Crosman. With the new spring and power adjuster, I find a noticeable improvement, however, I also find that I have fewer shots per fill. But being cold as it is here, it's no wonder I have less shots.
-Shel

[spysir]

with only a spring change find a 22xx HEAVY power spring ($8.00 + $3.00 s/h) now that was filled as high as I was willing (2200psi) and there was NO power curve just a steady drop so one would need to either trim it a bit or overfill more than I am willing to get a good curve. I plan on trimming the spring untill I get a nice bell curve at 2200psi.

 John

[Gopher]

I've had a drop in shots on my new Disco too, but cold weather has nothing to do with it.

When I narrow it down, I'll get back and report.

[phgHunterGTS250]

Where would I find the spring?

[ranedouglas]

look on the yellow forun classifieds.   i think it's bushidoselfdefense@gmail.com - but check to make sure.   he'll only take money orders.   i got one for my daughters 2400kt - and it bumped it to about 680 fps from 625 w/ hobbys.    it was too hard for her to cock so i put it in my disco.......damnitt...........it's shooting WELL over 920 fps w/ 16 gr wolverines.    but you better have a baffle !!    it gets only 25 shots from 2200 psi - but it goes right through ravens at 40 yards.   i'm desperately needing one of those small portable fill tanks and hose now.   - paul.