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KWA's aluminum piston head!


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#21 Guest_allizard_*

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Posted 12 December 2008 - 05:26 PM

Well... I was one of those "airsmith" that believed a ported piston is necessary.  And through the last couple of months, KWA have surprise me on several occasions that my old school (Marui/Systema) ways aren't necessary the only solution.   I'll tell you this, our piston head will not work if you drop that in other guns but KWA.   It is part of the a GRAND SCHEME of things.  Take a closer look at our nozzle next time.

And if you want a 3rd opinion.  go ask Spiggy.

Oh, KWA not only make automotive parts.  We also make parts for power tools.

#22 hammer

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Posted 13 December 2008 - 08:05 AM

View Postallizard, on Dec 12 2008, 05:26 PM, said:

Well... I was one of those "airsmith" that believed a ported piston is necessary.  And through the last couple of months, KWA have surprise me on several occasions that my old school (Marui/Systema) ways aren't necessary the only solution.   I'll tell you this, our piston head will not work if you drop that in other guns but KWA.   It is part of the a GRAND SCHEME of things.  Take a closer look at our nozzle next time.

And if you want a 3rd opinion.  go ask Spiggy.

Oh, KWA not only make automotive parts.  We also make parts for power tools.

A little bit OT regarding the stock nozzle, I had some extra cash lying around so I wanted to test the CA M4 nozzle with o-ring..my fps dropped dramatically so I replaced the stock KWA nozzle and fps went up again. Well atleast that's what happened in my KWA M4. There really must be a "GRAND SCHEME" for the KWA Wonder! :)

#23 NarleyNick

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Posted 15 December 2008 - 08:39 PM

The other day my KWA M4 broke and I just got it back from the repair shop... and my piston head disintegrated and screwed up some of the other internals

#24 karMeister

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Posted 15 December 2008 - 09:05 PM

View PostNarleyNick, on Dec 15 2008, 08:39 PM, said:

The other day my KWA M4 broke and I just got it back from the repair shop... and my piston head disintegrated and screwed up some of the other internals


Well S*&% happens. You just have to know your gun to tell that it isnt firing normally. The best thing you could do is minimize the damage by not forcing it to fire when it give "weird sounds". :P

#25 Shmoogly3

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Posted 16 December 2008 - 04:32 AM

I put a guarder aluminum ported piston head in my gun and it did nothing!

#26 Guest_allizard_*

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Posted 16 December 2008 - 10:37 AM

View PostShmoogly3, on Dec 16 2008, 04:32 AM, said:

I put a guarder aluminum ported piston head in my gun and it did nothing!

Can you clarify what is "nothing".  You mean it doesn't work or it doesn't change in performance.

#27 Stealthmaster14

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Posted 16 December 2008 - 12:00 PM

View Postallizard, on Dec 16 2008, 11:37 AM, said:

Can you clarify what is "nothing".  You mean it doesn't work or it doesn't change in performance.

I'm pretty sure he means that there was no change in performance, but some clarification would be nice.

#28 apollolanding

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Posted 16 December 2008 - 12:18 PM

It’s my experience now that KWAs are engineered to be a “straight out of the box” system.  Every piece in the gun is optimized for every other piece.  If you make one modification you upset that balance and you’ll end up replacing more parts along the line.  My latest example is the hop up.  I installed a Marui hop up unit in order to gain compatibility with 3rd party buckings.  Well that required a new nozzle because of the ridge on the KWA.  The Systema nozzle was smooth bored therefore more air went through and I lost 20 fps.  Had to install a heavier spring to gain that fps back.  Now I have battery life issues because in the New Jersey winter, 9.6v 1600mAh butterflies don’t last too long pulling the 120 spring (stiffer than OEM 120 spring).  Don’t get me wrong, hands down KWAs are the best “out of the box” gun on the market.  But due to the optimizations made to the designs, compatibility does become an issue.  That’s why I can’t wait for the “Performance Parts” to come out.  All KWA upgrade paths are going to be second to none!

#29 WiN&LeGeNd

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Posted 16 December 2008 - 01:04 PM

View Postapollolanding, on Dec 16 2008, 03:18 PM, said:

It’s my experience now that KWAs are engineered to be a “straight out of the box” system.  Every piece in the gun is optimized for every other piece.  If you make one modification you upset that balance and you’ll end up replacing more parts along the line.  My latest example is the hop up.  I installed a Marui hop up unit in order to gain compatibility with 3rd party buckings.  Well that required a new nozzle because of the ridge on the KWA.  The Systema nozzle was smooth bored therefore more air went through and I lost 20 fps.  Had to install a heavier spring to gain that fps back.  Now I have battery life issues because in the New Jersey winter, 9.6v 1600mAh butterflies don’t last too long pulling the 120 spring (stiffer than OEM 120 spring).  Don’t get me wrong, hands down KWAs are the best “out of the box” gun on the market.  But due to the optimizations made to the designs, compatibility does become an issue.  That’s why I can’t wait for the “Performance Parts” to come out.  All KWA upgrade paths are going to be second to none!


I'd have to agree here, although my gun is on its way and not in my hands yet. But from experience with CA, ICS and TM guns, there are some differences. For example people put TM parts in CA guns, unfortunately most the CA cylinder parts are about .5 to 1mm larger in diameter resulting in poor seals, people spend tons of money only to reduce performance and then scratch their heads wondering why. I think TM is one of the few where almost all 3rd party brands work well, but that is more or less because their designs and tollerances are the base line for most of them. For my SLR I had to buy CA brand cylinder set, it dropped right in and worked like a charm. I too can't wait until KWA starts making performance parts for their own guns. Not much is needed in my opinion really. All i'm really hoping for is more hop up/barrel options, I don't see a need to mess with the rest of the gearbox as its already phinominal stock.

Maybe we could see replacement hop-up chambers that accept TM standards, particularly barrels and bucking, but using KWA's notched nozzle (as far as I can tell the hop-up bucking isn't uniquely designed where the nozzle design is, so I say keep that), either that or if KWA offered a re designed V or H bucking to improve accuracy or something like that. I know they have the innovation to offer something like that as an upgrade for current models and as a stock integration for future models. My biggest pet peve with AEG's is accuracy in general, not so much range as its much easier to upgrade a gearbox than to achieve excellent accuracy. That's just my 2 bb's worth.

Edited by WiN&LeGeNd, 16 December 2008 - 01:10 PM.


#30 NarleyNick

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Posted 17 December 2008 - 09:22 PM

View PostkarMeister, on Dec 15 2008, 09:05 PM, said:

Well S*&% happens. You just have to know your gun to tell that it isnt firing normally. The best thing you could do is minimize the damage by not forcing it to fire when it give "weird sounds". :P

Well it happened sorta quickly... fired a few shot on a full auto burst and it was normal. Then it jumped to a cheap AEG sound so I stopped firing. When I showed the repair guy what was goin on, it wouldn't fire. But it only fired five or six shots on the weird sound (all in one burst).




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