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PostPosted: Fri Apr 01, 2016 10:56 am 
So I took apart my new Phantom 22 I bought last night to do the piston mod ( Yes I got my PAL ) to find out NO relief port. It was only shooting around 400-410, 450 ( was max ) with 14.3 grn.

So I cannot do the piston mod. My guess they detuned them with a different piston and spring.

Guess I need to order the 1000 kit. I have a addiction.

Image


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PostPosted: Fri Apr 01, 2016 11:55 am 
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Joined: Thu Mar 31, 2016 11:43 pm
Posts: 32
You only need a spring but due to the design of the Phantom it does have a maximum FPS limitation which cannot be overcome, it is 725fps, so I'm told. The limitation is due to the piston size and stroke which cannot be changed without reworking the whole rifle.


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PostPosted: Fri Apr 01, 2016 12:21 pm 
Stevegoodd wrote:
You only need a spring but due to the design of the Phantom it does have a maximum FPS limitation which cannot be overcome, it is 725fps, so I'm told. The limitation is due to the piston size and stroke which cannot be changed without reworking the whole rifle.


Be happy with 700. I bought it because it would be faster to load than my multi pump. Wasn't aware they changed things that wasn't as simple as plugging a hole.


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PostPosted: Fri Apr 01, 2016 3:32 pm 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 6016
Location: P.G. B.C.
725 fps would be great!

My HW98 runs 14.3gr. Crossman at 680 and 19.09gr. H&N at 603fps, for 14.8fpe and 15.4fpe respectively.

Due to the 19.09's being 15.4fpe, higher than the 14.3's, shows the H&N's are not too heavy for this springer if I understand springer dynamics correctly.

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Best Wishes
Daryl


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PostPosted: Fri Apr 01, 2016 4:01 pm 
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Posts: 1253
Location: Brant County
How long is the piston? They had 2 length of pistons and more often then not the models with no bleed hole had a longer piston to de-tune it...

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It's better to die quick fighting on your feet, then to live forever begging on your knees - Lamb Of God


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PostPosted: Fri Apr 01, 2016 4:28 pm 
Hacked2Pieces wrote:
How long is the piston? They had 2 length of pistons and more often then not the models with no bleed hole had a longer piston to de-tune it...


I didn't measure it when I had it out ( Shorter piston would allow more air volume to be compressed ). I was just going to buy the Quest/Phantom repair kit ( I think that would put my at the limit I want )

Kinda upset I couldn't do just the piston mod.


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PostPosted: Fri Apr 01, 2016 7:58 pm 
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Joined: Thu Aug 09, 2007 8:32 pm
Posts: 493
Location: Edmonton, Alberta
If yours had the longer piston (short stroke) it already has a heavier spring in it. Just need the quest/optimus/phantom etc 1000 piston. Been in the same boat a few times and get around 700fps (.22) no problem. The repair kit would get you a lil higher fps cuz I suspect the spring is even heavier and new, 700 is the sweet spot though. If you still have lots of factory grease in it be prepared for some dieseling ...

I have a benji classic with the piston replaced (was a gen1, short stroke,non pal). Got my PAL a bought a piston and installed it. Chrony's at around 700 now.

I still have a gen1 phantom (.22, short stroke, stamped trigger). And it is my go to rifle in situations where only non pal is permitted (buddy's acreage). Still averages around 480fps which is much better (quieter, smoother cycle, higher fps) than the later versions where they changed the de-tuning method.

:drinkers:


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PostPosted: Fri Apr 01, 2016 11:58 pm 
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If the piston is significantly more than half the length of the receiver then it is a long piston.


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PostPosted: Sat Apr 02, 2016 7:14 am 
Guess gotta tear it apart again and measure.

I cannot even get 460 fps from this.


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PostPosted: Sat Apr 02, 2016 8:16 am 
Did some measurements.. Man this is easy to take apart. With the short piston, safe to say I need just a new spring?

The spring was 34 coils. ( 33 full and 1/2 on the end ) 9 5/8" Long

Piston was only 5.9" long from base to tip of the seal. I assume short.

Image

Spring end cap 1.18" ( Seen online that the quest 1000 was shorter ) See link below.

Image

Spring guide 4.4"

Image

http://www.airgunhome.com/agforum/viewtopic.php?t=491


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PostPosted: Sat Apr 02, 2016 8:43 am 
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Joined: Thu May 07, 2015 8:30 pm
Posts: 1184
Location: Eastern Townships
You should measure the spring wire diameter, it'll give you a good idea of your spring's strength. And some interesting reading:

topic61784.html


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PostPosted: Sat Apr 02, 2016 8:53 am 
airmec wrote:
You should measure the spring wire diameter, it'll give you a good idea of your spring's strength. And some interesting reading:

topic61784.html


Wire thickness.. 0.098
0.521 ID,
0.723 OD,
34 coils,
9 5/8" long.


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PostPosted: Sat Apr 02, 2016 9:23 am 
If someone has their Quest 1000 apart could they measure their top hat?

This??

Image

Mines measuring out at 1.18" not sure if its the long or short one.


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PostPosted: Sat Apr 02, 2016 9:36 am 
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Joined: Thu May 07, 2015 8:30 pm
Posts: 1184
Location: Eastern Townships
RobertMcC wrote:
airmec wrote:
You should measure the spring wire diameter, it'll give you a good idea of your spring's strength. And some interesting reading:

topic61784.html


Wire thickness.. 0.098
0.521 ID,
0.723 OD,
34 coils,
9 5/8" long.


That's the ''weak'' spring. My phantom has a .118'' wire diam. spring, and a bleed hole in the piston. I guess if you order the Phantom 1000 spring, you'll get a ''full'' power rifle.


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PostPosted: Sat Apr 02, 2016 9:39 am 
airmec wrote:
RobertMcC wrote:
airmec wrote:
You should measure the spring wire diameter, it'll give you a good idea of your spring's strength. And some interesting reading:

topic61784.html


Wire thickness.. 0.098
0.521 ID,
0.723 OD,
34 coils,
9 5/8" long.


That's the ''weak'' spring. My phantom has a .118'' wire diam. spring, and a bleed hole in the piston. I guess if you order the Phantom 1000 spring, you'll get a ''full'' power rifle.


Thanks, once again time to harp Eric. Saves me some dollars being I don't need the full repair kit and I do need some chamber oil.


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