20 replies to this topic

[badkarmaas]

I'm going to tell a story.. a true story atleast.  I walked into my techs work station today to look at some parts and guns he was working on. There was a box of piston heads. I asked what they were from. He told me all from KWA's. He told me since their piston-heads are ported they lose decompression. I asked around to other techs to find he was telling me the honest truth. For all the people that lose fps and accuracy need to read this si they see the problem. Please pin this so the forum doesn't have a bunch of threads about range and fps decrease. This is the main cause of that so I know so far. Thanks for reading.

NOTE: When piston is losing compression, it can and maybe will damage the air nozzle!

Edited by badkarmaas, 01 June 2012 - 01:54 PM.

[bid2630]

badkarmaas, on 01 June 2012 - 01:39 PM, said:

NOTE: When piston is losing compression, it can and maybe will damage the air nozzle!

Can you explain how?

[badkarmaas]

Oops! I'm sorry. I meant AREN'T ported. My apologies. How the air nozzle gets damaged I'm clueless. He had a few shattered air nozzles and he informed me that it was the NON-ported piston head

[niko_gpsy]

KWA guns have one of the best compression in the industry and they don't use a ported piston head. And I do not see how a non-ported piston head causes an air nozzle to "shatter."  As a matter of fact I have NEVER seen an air nozzle shatter.

[badkarmaas]

I'm just posting by what over three airsoft techs have told me. All say the same thing. I had my sr10 lose compression and started shooting less than 300 fps, so I agree that it was a problem.

[niko_gpsy]

I guess they didn't bother mentioning that a new stretched piston head o-ring would resolve any cylinder compression issue. I would be weary of those that tell you that a non-ported piston head shatters air nozzles..................

[jpip]

Guess it's time to stretch a ring.

[vanevery]

badkarmaas, on 01 June 2012 - 01:39 PM, said:

I'm going to tell a story.. a true story atleast.  I walked into my techs work station today to look at some parts and guns he was working on. There was a box of piston heads. I asked what they were from. He told me all from KWA's. He told me since their piston-heads are ported they lose decompression. I asked around to other techs to find he was telling me the honest truth. For all the people that lose fps and accuracy need to read this si they see the problem. Please pin this so the forum doesn't have a bunch of threads about range and fps decrease. This is the main cause of that so I know so far. Thanks for reading.
NOTE: When piston is losing compression, it can and maybe will damage the air nozzle!

Are you yourself a tech?
Ever worked on a gun with about every different combination of after-market and stock parts in your KWA gun?
Most of us who tech our own guns have and have used or tested about every thing out there.

The non-ported alluminum piston head by KWA is the best non-ported piston head around, and gives fantastic compression.
Shatter air nozzle's? Never seen or heard if this in a KWA gun or any brand gun under any set up.

Pin This?
Pin This! Know what you are talking about before posting.
Of the few dumb things about KWA guns I have seen posted through the years on Forums, this is the dumbest.

[superfrog]

I would like to see a shattered air nozzle that came as a result of a kwa piston.

You said you had compression issues with your SR10.  Did they fix it and what did they do? how much did they charge you?

Remember, airsoft is not a huge money maker for most shops.  The margins are slim on most guns and servicing guns is where a good amount of money is made for "techs".  As niko stated, most compression issues can be solved with a .50 oring, but many techs will replace expensive parts to make money as well as charging for labor.

[karl_azytzeen]

I cant see how this two things can be ralated.
A ported piston head can be as good as a non ported... the difference is that the ported will allow a reverse airflow, when piston is going back so it reduces stress on piston gears... and increases a bit the rof.

[badkarmaas]

It cost me $40 for labor and a new KWA piston head. I guess we will know after I get to play several games and see what happened. As for o-rings being old, the gun was not even 2 months old when it started happening. I would've Sen it to KWA for repair, but I sent my am9 ptp to them and as soon as I shot it, the breach rails snapped. I've got 3 techs were I live that live there life off of that business and after God knows how many years of airsoft gb work, I trust them.

[badkarmaas]

As for a shattered air nozzle, well now that I have a better word for it, it wasn't actually shattered, it got stuck when it was going back and I guess something was put of line, but a piece the shape of an " n" was knocked partly out. How that happens, I don't know, but it does.

[Southern Dandy]

badkarmaas, on 02 June 2012 - 05:56 AM, said:

As for a shattered air nozzle, well now that I have a better word for it, it wasn't actually shattered, it got stuck when it was going back and I guess something was put of line, but a piece the shape of an " n" was knocked partly out. How that happens, I don't know, but it does.

I'm sorry dude no disrespect to you, but shattered and stuck are two completely different words like, honestly before you come to post on a forum and comment on something be sure to get the facts straight.

As you can see the natives get restless when people say stuff about kwa and with good cause as there quite honestly one of the most reliable gearboxes out there (wooooooo KWA.....). I dont think there was no real malice to your statement but it saves alot of agro if the facts are straightened from the get-go.

[vanevery]

badkarmaas, on 02 June 2012 - 05:51 AM, said:

It cost me $40 for labor and a new KWA piston head. I guess we will know after I get to play several games and see what happened. As for o-rings being old, the gun was not even 2 months old when it started happening. I would've Sen it to KWA for repair, but I sent my am9 ptp to them and as soon as I shot it, the breach rails snapped. I've got 3 techs were I live that live there life off of that business and after God knows how many years of airsoft gb work, I trust them.

OK.
You got a brand new KWA piston head for a gun that was only two months old?
What was wrong with the original stock piston head?
I own 4 KWA guns and have never had a problem with the piston head.
As far as the O-ring, maybe it was bad, maybe not.
When you chrono'd your gun before repair, did you have your Hop-up turned all the way on?
What weight bb's were you using?
Did you clean out the inner barrel and Hop-up unit / bucking before using?
Did you do any inner barrel or bucking swaps before you chrono'd?
What brand chrono was it?

badkarmaas, on 02 June 2012 - 05:56 AM, said:

As for a shattered air nozzle, well now that I have a better word for it, it wasn't actually shattered, it got stuck when it was going back and I guess something was put of line, but a piece the shape of an " n" was knocked partly out. How that happens, I don't know, but it does.

This is the kind of thing that can happen from time to time when someone opens up the gearbox and works on it.  I have never heard of a KWA air nozzle becoming unseated in stock form, especially being only two months old.

I think there is more to this story than being disclosed.
Did you buy the gun brand new or used?
Where / who did you buy this gun from?

Remember,
you are speaking with those who own or have owned multiple KWA guns and most of us tech our own guns. We know the stengths and tolerance levels of these guns first hand.

[airsoftamateur32]

[superfrog]

Hey guys this thread needs to end. Actually removed or locked.   Badkarma just put on another thread that apparently a "friend" is writting this from Badkarma phone.  

If nothing else just do not respond on this anymore.  

Hey mods can thus thread be deleated? It is serving no useful purpose.

[badkarmaas]

Superfrong- thank you. I let my friend Pusey older phone and I did not log out of the forums and he got on. Someone messaged me and made me aware of this post. Thank you ' anonymous '. Please close this thread mods. Or better, delete it. I'm sorry for this guys.