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-   -   Who has created their own silent piston? (https://airsoftcanada.com/showthread.php?t=51249)

HaZarD SFD January 23rd, 2008 17:42

Who has created their own silent piston?
 
I was wondering if anyone had modded a piston head or cylinder head to quiet it a bit more?

I have a TM M14 and I know by reducing some cylinder volume you can reduce some fps.

I was thinking and still am thinking of adding a ring of neoprene on the cylinder head to soften the impact and slightly reduce fps. As my M14 is at 405fps and local limit is now back down to 400fps. Its only on Semi but I found a site that sells the fire selector switch.

So if you did any mods please let me know of the details.. I know there is a mod called the Air Break Mod

Any help appreciated. Thanks.

Amos January 23rd, 2008 18:18

Silence is more than just a piston head.

Right now I'm making a tuner G36, which I'm tuning to be completely silent..

Go to an RC shop, get your motor balanced, It'll use less power and have less of a whining noise. Helical gears are a must... If you have the cash, an Angel Silent Piston Head is a bloody godsend.

If not, try the Air Break..

Airbreaks greatly degrade with rapid fire... But if you're using it in semi, you should be fine.

Talk to Thundercactus, He's done this.

ThunderCactus January 23rd, 2008 18:35

Yep, foam/neoprene on the piston head doesn't make a difference. If anything it just makes your piston wear out faster.

HaZarD SFD January 24th, 2008 16:40

Quote:

Originally Posted by ThunderCactus (Post 623244)
Yep, foam/neoprene on the piston head doesn't make a difference. If anything it just makes your piston wear out faster.


My M14 is quiet enough already.. a small layer will decrease air volume in the cylinder and make the slap of the piston more of a thud.. of which the Gemtech silencer almost makes that noise completely gone.

Dynamo January 24th, 2008 17:46

i have designed a new piston head that is compleaty silent, and almost compleatly stops the piston from smacking into the cylender head(great for V2 gearboxes).
i have installed them on my G&G UMP and VFC HK416(prowin 8mm split gearbox installed), and the only thing you can hear from both is the motor.
it doesnt change the volume inside the cylender like the Angel Silent Piston Head, and it can be used in full auto. its compleatly silent when the gun is dry fired, yet you get a nice crisp pop as BBs leave the barrel.
once i get my finaces worked out i may make a batch for public testing.

HaZarD SFD January 24th, 2008 18:11

Well this is for a Ver.7 TM M14.. I want to just reduce the volume enough int he cylinder to lower it by 5-10fps. if it gets quiter cool. Mind you the TM M14 is already quiet.

CDN_Stalker January 24th, 2008 18:27

Hazard, just port the cylinder a bit to drop it by a few fps (drill holes closer to the back then file forward to 'tune'.) Might work for what you are looking to do (drop fps, NOT make it quieter........ it is quite enough, but because his gun shoots around 406fps, he wants it field legal, and since i told him silent piston heads tend to drop the fps a bit.......)

manchovie January 24th, 2008 18:31

air break will be quite a bit harder to make for v7 as it has an offset nozzle like the p90/thompson. also you can't use the systema or angel head sets, you'll need to figure something else out.

AndreObi December 3rd, 2009 20:43

Quote:

Originally Posted by Dynamo (Post 624007)
i have designed a new piston head that is compleaty silent, and almost compleatly stops the piston from smacking into the cylender head(great for V2 gearboxes).
i have installed them on my G&G UMP and VFC HK416(prowin 8mm split gearbox installed), and the only thing you can hear from both is the motor.
it doesnt change the volume inside the cylender like the Angel Silent Piston Head, and it can be used in full auto. its compleatly silent when the gun is dry fired, yet you get a nice crisp pop as BBs leave the barrel.
once i get my finaces worked out i may make a batch for public testing.

Hi, I'm sorry to dig this post, but I am very interested in your design. Can you please tell me more about it?

Thanks.

Styrak December 3rd, 2009 21:08

Just use a Sorbo pad.

Amos December 3rd, 2009 22:44

WOW this is old, For the record that G36 never worked out. I had purchased a JG G36 to start as a base, and it was way too off-spec to work properly with any of the higher end upgrades... :) There's a BIG reason why I suggest name-brand guns.

Airsoft Research Syndicate POM MASK sorbo piston head
Airsoft Research Syndicate Sorbo Pad
Helical Gears
Comm lathe'd and balanced TM Motor
A perfect shim job
External high-fiber filled silencer :)

^------ Recipe for making a quiet gun

Ayashifx55 December 3rd, 2009 23:39

"Angel Silent Piston Head" that's damn expensive.

Skruface December 4th, 2009 17:57

Quote:

Originally Posted by Amos (Post 1116484)
Comm lathe'd and balanced TM Motor

Who does this motor work in Winnipeg? Eliminator R/C?


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