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-   -   Re-Spring your CCM? (http://www.mcarterbrown.com/forums/ccm/48806-re-spring-your-ccm.html)

oggfueler 08-19-2008 11:46 PM

Re-Spring your CCM?
 
Has anyone here re-sprung their S25's,S5's or S6's in favor of getting better efficiency? If so,,, what spring combo are you guys running and what kind of efficiency change (good or bad) did you get?

arpie 08-20-2008 01:55 AM

CCM use very weak springs to attain a smooth,easy and buttery-sex (lol) like pump stroke. Using harder springs to attain increased efficiency would result in a harder pump stroke (cough). Counter-intuitive to the whole point of using soft springs.

Arpie

oggfueler 08-20-2008 02:24 AM

I hear you about the "lighter pumpstroke" arpie. I do appreciate a nice smooth pump stroke but just wanted to see if there was a happy medium someone may have come across.

arpie 08-20-2008 09:47 AM

Well it all depends on your setup. Below:

IVG position
Reg input pressure
Well greased components or not?
Well oiled components or not?
Duration of use
Internal damage

Experimentation is the key chap!

Good luck,

Arpie

oggfueler 08-20-2008 04:18 PM

Nobody try anything other than the stock springs?

Phantom Power 08-20-2008 04:29 PM

Yes. I replaced the valve spring in my S6P with a stock Phantom valve spring. I then had to up my input pressure a bit, but I've kept the stock CCM main spring so the pump stroke is unchanged. It got me a fair few more shots off a tank.

oggfueler 08-20-2008 04:54 PM

Quote:

Originally Posted by Phantom Power (Post 493572)
Yes. I replaced the valve spring in my S6P with a stock Phantom valve spring. I then had to up my input pressure a bit, but I've kept the stock CCM main spring so the pump stroke is unchanged. It got me a fair few more shots off a tank.

Thanks for that,,, That's kinda what I'm planning to try out exactly.

himurax13 08-20-2008 05:02 PM

I replaced the valve spring with a red one and I Upgraded the input pressure to about 275 PSI. I kept the soft hammer spring and now instead of only getting 600 shots per 45/4500, I can get alomst 1000. Of course the guide rods and the hammer were slightly polished.

Phantom Power 08-20-2008 05:04 PM

I run mine off a 13ci tank, but I'd imagine that percentage wise I got about the same increase as himurax.

himurax13 08-20-2008 05:07 PM

Quote:

Originally Posted by Phantom Power (Post 493615)
I run mine off a 13ci tank, but I'd imagine that percentage wise I got about the same increase as himurax.

I havent tried that yet since I resprung mine. With the stock setup, I was getting about 75 shots off of a 13 CI tank.


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