Author Topic: CP2 gets a big upgrade. (Read 14429 times))

avator · « **Reply #60 on:** January 31, 2021, 12:53:12 PM »

Dang, I wish that poppet was long enough for a couple orings.... $:-\$
I don't want to hack into the stock for an SSG.

avator · « **Reply #61 on:** January 31, 2021, 12:56:21 PM »

Thanks Don..
3k down to around 1500.
I'm sure I'm getting some bounce... can't really hear it though.

Long_Gun_Dallas · « **Reply #62 on:** January 31, 2021, 01:00:09 PM »

These guns are tricky to get a decent curve from. I threw in the towel on my .177 and put a reg. in it. 50 shots for 650fps.

My .25 gets about 8 shots in a pretty tight group down range, but the ES is not tight at all.

Good effort so far!

I think if it were possible, I'd try making a delrin hammer or something of the sort.

avator · « **Reply #63 on:** January 31, 2021, 01:02:19 PM »

Yeah, I don't have a lathe and my drill press/file skills are lacking.... lol

avator · « **Reply #64 on:** January 31, 2021, 01:11:28 PM »

Here is a little more info that may or may not make a difference.
Valve= back half, poppet and spring are CP2. Front half is PP800.
CP2 Hammer.
PP800 HS w/3ish coils clipped.
CP2 spring guide.
CP2 TP.
CP1 Reciever, bolt and barrel. (LH)
PP800 Tube and fill assy. w/gauge.
CP2 trigger group.
CP2 barrel band w/pic rail for legs.
And somebody's moderator... I got no clue. It came in a trade along the road.

Pelletjunkie · « **Reply #65 on:** January 31, 2021, 01:26:48 PM »

My next step would be a smaller TP. I know, I know, in the pcp world that’s almost profanity but it might be the key to stretching out that curve.

avator · « **Reply #66 on:** January 31, 2021, 01:28:13 PM »

Quote from: Pelletjunkie on January 31, 2021, 01:26:48 PM

My next step would be a smaller TP. I know, I know, in the pcp world that’s almost profanity but it might be the key to stretching out that curve.

Yup, considering the tube size....

avator · « **Reply #67 on:** January 31, 2021, 01:38:22 PM »

Here's my position....
I got more guns than any man needs... maybe not as many as any man wants... lol
But, I did this one with RV'ing/camping in mind.
A compact little pistol/carbine to sit around the campground and pop small targets without offending or drawing too much attention from other campers. With the 30min scba 4500psi tank I get a boatload of fills. 6 mags will give me 3 fills of shooting before a reload... as it were.
And at 10 to 12 fpe, I can fend off a zombie sqwizzle apocalypse.

avator · « **Reply #68 on:** January 31, 2021, 02:05:32 PM »

JSB Diabolo 8.44 are proving to be acceptably accurate. They do beat out the 10.49 and the 7.9.
Well within campsite paintball shooting range.

avator · « **Reply #69 on:** January 31, 2021, 02:33:37 PM »

Oh gees.... Betty Lou just stepped out the back door to the shooting bench.
Hey, that's a cute little gun, lemme see that.

I fear I may have lost this one....

Long_Gun_Dallas · « **Reply #70 on:** January 31, 2021, 02:49:38 PM »

Quote from: avator on January 31, 2021, 01:02:19 PM

Yeah, I don't have a lathe and my drill press/file skills are lacking.... lol

I'm there with you, lol. But maybe you could just get a cylinder of delrin that is the correct diameter? Most all you'd need to do is thread it, and run a bolt thru for a cocking pin. Then remove upper threads and polish the bolt. I recon it might need a steel striker after a while, though. Not sure if the poppet would create an indentation over time. I think it would be doable with basic tools, though if you could find the cylinder.

Quote from: avator on January 31, 2021, 02:33:37 PM

Oh gees.... Betty Lou just stepped out the back door to the shooting bench.
Hey, that's a cute little gun, lemme see that.

I fear I may have lost this one....

uh oh, lol

Pelletjunkie · « **Reply #71 on:** January 31, 2021, 02:53:03 PM »

Well since you seem to like to tinker, I just went down and turned you a smaller TP on my lathe. The stock CP is 9/64. I made this one 7/64. That gives you and your drill press the 1/8 bit if you want to go bigger but stay under the factory size. PM me your address and I will drop it in the mail tomorrow.

avator · « **Reply #72 on:** January 31, 2021, 02:54:12 PM »

I'll have a look around work.. we got all kinds of stuff.

avator · « **Reply #73 on:** January 31, 2021, 02:55:42 PM »

Quote from: Pelletjunkie on January 31, 2021, 02:53:03 PM

Well since you seem to like to tinker, I just went down and turned you a smaller TP on my lathe. The stock CP is 9/64. I made this one 7/64. That gives you and your drill press the 1/8 bit if you want to go bigger but stay under the factory size. PM me your address and I will drop it in the mail tomorrow.

Awesome...
PM incoming...

avator · « **Reply #74 on:** January 31, 2021, 02:57:53 PM »

I love this place and the fellowship.

Pelletjunkie · « **Reply #75 on:** January 31, 2021, 03:09:35 PM »

It will be in the mail tomorrow. I always felt guys went the wrong direction with these pistols because most can’t help themselves but to chase power beyond a certain platforms capabilities. Then they have to live with a horrible string. Maybe a smaller TP isn’t the way to go but we will find out now. I put a smaller TP in my buddies Xisico unregulated rifle because he lives in a neighborhood and doesn’t need to send 18grs of lead at warp speed. Very good results when that TP backed the gun down to 800fps.

avator · « **Reply #76 on:** January 31, 2021, 03:19:23 PM »

I've never messed with TP sizes for tuning.
I've always just went with the spring length and the orings.
I'm not a power monger. I prefer the shot count.
Might even take another whack at that spring after we see what the smaller TP does.

Long_Gun_Dallas · « **Reply #77 on:** January 31, 2021, 03:22:47 PM »

It'll probabaly help some, but in my experience it's not THE answer. But it might be part of the answer. Either way, you won't know till you try! Coupled with a lighter HST, you might get a very flat curve.

Pelletjunkie · « **Reply #78 on:** January 31, 2021, 03:34:55 PM »

Over the last year or so I have changed my approach. I take what a gun will give me and try to fine tune it. If I need more power, I buy a more powerful gun. Guns have parameters. You have a Bandit but want more, buy a PRod. Have a Prod but need more, buy a Leshiy. All these guns are great fun, accurate and reliable guns if you stay within what the platform will give you. When you go outside the parameter, they get whacky, temperamental and inefficient. I will get off my stump now.

avator · « **Reply #79 on:** January 31, 2021, 03:36:13 PM »

I may visit this mod as well...

https://www.gatewaytoairguns.org/GTA/index.php?topic=182687.msg156082122#msg156082122

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CP2 gets a big upgrade.

Author Topic: CP2 gets a big upgrade. (Read 14429 times))