Jump to content


Why are KWA springs shorter than other companies?


  • Please log in to reply
5 replies to this topic

#1 Blacssr@bellsouth.net

Blacssr@bellsouth.net

    Enthusiast

  • Members
  • PipPip
  • 56 posts

Posted 19 September 2008 - 06:21 PM

The title says it all. I have just torn down my M16 BR to upgrade spring and noticed the "130 equivalent spring" is about 1" shorter than an Echo 1 130 or Prometheus 135 spring. Does any one have an idea as to why this is so?

Does any know what it would take to get the M16 BR to hit 500-525 FPS. I just put a 150 spring in and hit 475FPS @ 22bps with .20 and Prometheus TB. Is this on target for a stock gear box with only a spring change or am I missing the mark?

Any and all comments are welcome.

Thanks in advance.


Mike

#2 Guest_allizard_*

Guest_allizard_*
  • Guests

Posted 19 September 2008 - 09:15 PM

You'll need a ported piston head and a non-ported cylinder.  Also, not all 150 spring have the same FPS rating.

#3 karMeister

karMeister

    Guru

  • Members
  • PipPipPipPip
  • 1,534 posts
  • Gender:Male
  • Location:a small hole under a rock =P
  • Interests:EAR=((1+APR/n)^n)-1
  • Country:

Posted 19 September 2008 - 09:56 PM

Im shooting 480FPS with .20  on an SP130. Nothing else changes but the 6.02 barrel and the Piston head's bearings.   On my other AEGs I that have an M150 installed Im shootig 540 with .25 thats 570 with.20s. These are settled FPS.

#4 Blacssr@bellsouth.net

Blacssr@bellsouth.net

    Enthusiast

  • Members
  • PipPip
  • 56 posts

Posted 20 September 2008 - 08:15 AM

View Postallizard, on Sep 20 2008, 01:15 AM, said:

You'll need a ported piston head and a non-ported cylinder.  Also, not all 150 spring have the same FPS rating.

Can you recommend what to buy?


Thanks,

Mike

#5 rdlu62

rdlu62

    Enthusiast

  • Members
  • PipPip
  • 48 posts
  • Location:Northridge, California

Posted 22 September 2008 - 06:05 AM

View PostkarMeister, on Sep 19 2008, 10:56 PM, said:

Im shooting 480FPS with .20  on an SP130. Nothing else changes but the 6.02 barrel and the Piston head's bearings.   On my other AEGs I that have an M150 installed Im shootig 540 with .25 thats 570 with.20s. These are settled FPS.

wow! what gun is this? is this the one you're planning to put in a promy triple torque gear set?

#6 karMeister

karMeister

    Guru

  • Members
  • PipPipPipPip
  • 1,534 posts
  • Gender:Male
  • Location:a small hole under a rock =P
  • Interests:EAR=((1+APR/n)^n)-1
  • Country:

Posted 22 September 2008 - 08:27 AM

View Postrdlu62, on Sep 22 2008, 06:05 AM, said:

wow! what gun is this? is this the one you're planning to put in a promy triple torque gear set?


km4a1,  yeps wii have a prom 3ple torque and an m150 next. I plan to hit 530 mark on .25s ( 570 on .20)




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users