Prometheus Hard/Supercore Piston Clone, King Arms Rating Options

[Vercingetorix]

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.

This post has been edited by Vercingetorix: May 10 2009, 11:12 PM

[Rob15]

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.

[Vercingetorix]

Yeah, but I've had horrible luck with anything element I've tried. King arms is usually decent.

[thartwig]

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.

[tosuzu]

My local store has them but they're not selling them till they test it. (epowersports)

[TheReaper]

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.

This post has been edited by TheReaper: May 11 2009, 05:43 AM

[infected]

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.

[Vercingetorix]

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 (IMG:style_emoticons/default/dry.gif) , 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....

[DarkLite]

???? 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.

[Rob15]

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.

[Mike_West]

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?!

[amateurstuntman]

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.

[[BS]_MARS]

What's so great about the Prometheus supercore pistons? I honestly just don't know.

[Hammerfall]

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.

[Pariah_WP]

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...

[DarkLite]

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.

[Magsz]

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.

[Rob15]

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.

[amateurstuntman]

Nope it wasn't flashing, it was the teeth snapping off and shredding in the 'box.

Hopeless.

[Vercingetorix]

Yeah, mine prometheus piston didn't crack, it merely SHREDDED the gear rack, including he metal teeth(riotSC gears (IMG:style_emoticons/default/tongue.gif) )