Vercingetorix Posted May 10, 2009 Report Share Posted May 10, 2009 http://www.kingarms.com/productpage.asp?prodid=1600 Good news. Hopefully it is made halfway decently and won't cost more than $20. At the rate I go through Promy pistons, this should save me and a fair few others quite a it of money. Link to post Share on other sites
Rob15 Posted May 10, 2009 Report Share Posted May 10, 2009 http://www.wgcshop.com/pcart/shopper.php?itm=KA-PT-04_srch_1 Element have been doing a similar thing for ages, and a new brand (PSEM) has also done a clone recently. Link to post Share on other sites
Vercingetorix Posted May 11, 2009 Author Report Share Posted May 11, 2009 Yeah, but I've had horrible luck with anything element I've tried. King arms is usually decent. Link to post Share on other sites
thartwig Posted May 11, 2009 Report Share Posted May 11, 2009 Yeah, but I've had horrible luck with anything element I've tried. King arms is usually decent. Same here, there TBB sucked, and one of there pistons failed on me right after i installed it. I'll tell you, its not fun cleaning out small pieces of pinkish plastic out of your gearbox. Link to post Share on other sites
tosuzu Posted May 11, 2009 Report Share Posted May 11, 2009 My local store has them but they're not selling them till they test it. (epowersports) Link to post Share on other sites
TheReaper Posted May 11, 2009 Report Share Posted May 11, 2009 Just got one of these - gonna throw it in my backup/cqb M4 tomorrow. I've so far had good luck with KA's older grey piston... its been going strong in my main for a while now. Link to post Share on other sites
infected Posted May 11, 2009 Report Share Posted May 11, 2009 At the rate I go through Promy pistons, this should save me and a fair few others quite a it of money. ???? What in God's name are you doing to destroy prommy pistons???? I've run 30rps 400 fps setups and 500+fps dmr setups and never damaged a prommy! Wow. It is good to see that there is going to be more comparable pistons to the Prometheus hard piston series. Hopefully they'll be just as nice in quality. Link to post Share on other sites
Vercingetorix Posted May 11, 2009 Author Report Share Posted May 11, 2009 I think I pushed the AoE too far back(need to start a thread on that) and my pakayama nozzle wasn't shaved far enough, so I kept jamming= destroyed piston in under 6k bbs. That sure sucked. When i looked at the piston when I had it open, I could see it was on its way out. It broke on saturday.... I got one jam(I was playing a big sandpit, but I wasn't using a TBB, I was still jamming , no I didn't stick my barrel in the sand). The wear on the piston was such that the second tooth after the pickup was complete destroyed on one side(this was before the gun died) and the pistons directly after it were also getting destroyed on one side, with the wear progressively decreasing as one moved forward down the rack. The pickup had a strange andgle of wear on it, and certainly too much wear for a mere 6k rounds(my last prometheus piston in more or less the same setup lasted like 35-40k rounds at least). That leads me to believe I pushed the piston abck too far. I used the ARS Sorbothane(had to cut it extremely roughly myself). I added the extra black matting on top of the blue and I think that put it just a bit too far back. I should post up pictures in another thread.... Link to post Share on other sites
DarkLite Posted May 11, 2009 Report Share Posted May 11, 2009 ???? What in God's name are you doing to destroy prommy pistons???? I've run 30rps 400 fps setups and 500+fps dmr setups and never damaged a prommy! Wow. It is good to see that there is going to be more comparable pistons to the Prometheus hard piston series. Hopefully they'll be just as nice in quality. I'd like to see what people are doing to destroy ELEMENT pistons too. I've only killed two ELEMENT pistons ever: #1 died after 40K rounds at 465fps in a G3 based DMR. #2 died after a 500 round burst at 60rps, 300fps in an MP5 based hi RoF hosegun. Link to post Share on other sites
Rob15 Posted May 11, 2009 Report Share Posted May 11, 2009 I'll agree the king arms probably will be better than the element versions but the element version of the supercore is good as long as you install it right, i've installed quite a few and the main thing you have to check is that the rear of the piston doesn't catch on the rails inside the gearbox as they can sometimes catch. Don't check this and just try and cycle the gun under the power of the motor and you will wreck it quite fast, check that and set it up right and it should last as long as most other pistons. Link to post Share on other sites
Mike_West Posted May 11, 2009 Report Share Posted May 11, 2009 I'd like to see what people are doing to destroy ELEMENT pistons too. I've only killed two ELEMENT pistons ever: I killed an Element silent pistonhead after roughly 50 shots with a F2000 running a stock CA spring. What are they making them from, stale bread?! Link to post Share on other sites
amateurstuntman Posted May 11, 2009 Report Share Posted May 11, 2009 Are we talking about the orange element "hard" piston. It was absolute dog poo. I have some smashed ones downstairs. I have smashed just about every type of piston but the prommy one, I like KA though. Link to post Share on other sites
[BS]_MARS Posted May 12, 2009 Report Share Posted May 12, 2009 What's so great about the Prometheus supercore pistons? I honestly just don't know. Link to post Share on other sites
Hammerfall Posted May 12, 2009 Report Share Posted May 12, 2009 What's so great about the Prometheus supercore pistons? I honestly just don't know. Prometheus and super core and different brands. Essentially they're build quality (material), construction and finish is far better than the opposition. They're perfect for high FPS set-ups and will never likely crack if installed correctly. That said, the Element ones are really quite good as well... and a damn sight cheaper. Link to post Share on other sites
Pariah_WP Posted May 12, 2009 Report Share Posted May 12, 2009 I would just like to say that the element bits I have run have held up well, save for a 1 piston and I run a lot of their goodies. Maybe I lucked out. I hear a lot of you moaning about them, but I have never had much fuss from them, so I keep buying them. My systema pistons have all broken. My one and only prometheus is going strong after several years. I guess I am just lucky. I usually fry trigger leads and fuses and I run decent FPS (350-450FPS) systems and I run then hard (all on 11.1v lipos) and they seem to hold up...then again I am the lord of maintenance and lube, so... Link to post Share on other sites
DarkLite Posted May 12, 2009 Report Share Posted May 12, 2009 Are we talking about the orange element "hard" piston. It was absolute dog poo. I have some smashed ones downstairs. I have smashed just about every type of piston but the prommy one, I like KA though. No, the Orange ELEMENT pistons are *suitcase*, as AFAIK are now out of production. The old red ELEMENT pistons were brilliant, and their new clear pistons are also damn good. Link to post Share on other sites
Magsz Posted May 13, 2009 Report Share Posted May 13, 2009 I'll agree the king arms probably will be better than the element versions but the element version of the supercore is good as long as you install it right, i've installed quite a few and the main thing you have to check is that the rear of the piston doesn't catch on the rails inside the gearbox as they can sometimes catch. Don't check this and just try and cycle the gun under the power of the motor and you will wreck it quite fast, check that and set it up right and it should last as long as most other pistons. The element orange pistons have alot of flash in between the guide rails on the sides of the piston. They dont always slide freely and require quite a bit of filing to make them work. Once you've got them set up i havent had too big of a problem with them. Still, all in all id much prefer a higher quality piston like G&P, king arms or prometheus. Link to post Share on other sites
Rob15 Posted May 13, 2009 Report Share Posted May 13, 2009 Indeed, which is why it is important to check they fun freely on the rails before trying to actually cycle the gearbox, most of the ones i installed just needed pushing backwards and forwards in the gearbox shell to wear off any of the flashing, another had to be filed down more but the gearbox shell in use was tighter than most on the rails. Link to post Share on other sites
amateurstuntman Posted May 13, 2009 Report Share Posted May 13, 2009 Nope it wasn't flashing, it was the teeth snapping off and shredding in the 'box. Hopeless. Link to post Share on other sites
Vercingetorix Posted May 14, 2009 Author Report Share Posted May 14, 2009 Yeah, mine prometheus piston didn't crack, it merely SHREDDED the gear rack, including he metal teeth(riotSC gears ) Link to post Share on other sites
UrPeaceKeeper Posted May 15, 2009 Report Share Posted May 15, 2009 Yeah, mine prometheus piston didn't crack, it merely SHREDDED the gear rack, including he metal teeth(riotSC gears ) Did you read the Piston Review on Airsoft Mechanics? The Prometheus failed because of the second tooth and premature engagement, did you remove it on your last install? If you adjusted the AoE and didnt remove sections of teeth that would cause them to strip. I've seen 3 prometheus pistons and none of them in their varrying set ups (High ROF, High FPS and a standard 400 FPS) have any damage whatso ever. The Prometheus Pistons are practically flawless unless they are installed incorrectly. New piston looks interesting. Link to post Share on other sites
Vercingetorix Posted May 16, 2009 Author Report Share Posted May 16, 2009 No I removed the second tooth( first one after the pickup) and around halfish of the third tooth. I think I pushed the piston back too far. I'll take pictures of where the piston sits when I open her up and could you tell me what I am doing wrong(i.e. am i pushing it back to far?) Link to post Share on other sites
Kingmob3 Posted May 16, 2009 Report Share Posted May 16, 2009 So every falure has been due to poor installation. Go figure. Trim your pads/washers ( sanding down washers can be done!) correct AOE and almost any piston will work well. AoE corrected stock CA did 24000 rounds @440FPS for IRENE, and still shoots fine (now down to 400 due to local limits). I know it will give out well before a Prom/Super core, but for $5-$10 out of some ones project gun, unused you can't beat them. Has any one managed to destroy a Promy or Supercore outside of a botched instillation (bad AOE etc)? KM Link to post Share on other sites
Vercingetorix Posted May 16, 2009 Author Report Share Posted May 16, 2009 Yeah, the one I had before the one I just destroyed, died after like 60k, proper AoE. It was because of a jam, on FA(no mosfet back then and the 30 rps and pdi 190 spring didn't help to save it either) Link to post Share on other sites
Kingmob3 Posted May 16, 2009 Report Share Posted May 16, 2009 was it a physical jam in the GB, or a compression hang due to a BB jamb? thanks, KM Link to post Share on other sites
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