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syn01010

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Posts: 2
Reply with quote  #1 

I have UK version of Vector airsoftgun.

It power is 340 FPS, but it need to be 330 FPS for some reason.

Is there any recommend spring? Or it need to cut spring that already equiped in my airgun?

In addition, which spring is best for makes 390 FPS?

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leechmonger

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Posts: 42
Reply with quote  #2 
Drop by 10 FPS

1. Buy m90 spring.
2. Remove one tooth from the sector gear.
3. Cut the spring.
4. Lengthen the port on the cylinder.
5. Use a smaller o-ring on the piston head.
5. Adjust the hop up to reduce the FPS enough to pass chrono, then readjust the hop up.
6. Might be more solutions buy those are mine.
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kinesis

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Posts: 102
Reply with quote  #3 
i mentioned in another post already. =)

do not go down to a 90 spring. it will not cycle correctly. but the above directions could fix the cycle problem. i'm just thinking my solution is easier?

to get down to 330fps for indoor .. which was what i needed. go to a 160mm or shorter barrel and pair to a 100 or 110.


flip side for 390fps. go to a 185 barrel and pair with a 120/130 spring.

i have a 160mm for indoor and a 185mm for outdoor.


=)
-k
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Allizard

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Posts: 872
Reply with quote  #4 
** NEVER EVER CUT SPRING **
It's not the proper way to adjust FPS.  Since you have the vector it is easy just change the spring.  

UK Vector probably still have the M120 spring as it's got a sort barrel.  So you really only need to drop to a m110 should do the job.
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polpacco

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Posts: 7
Reply with quote  #5 
It´s incredible how a longer barrel is increasing the fps...I have the limited edition vector, comes with a longer barrer so to get less than 350fps I have put a m90 spring, but the vector now does not cycle correctly with a 11.1 battery so I have to use a 7.4 instead. Now I am trying to find a way to use the original m120 spring with the 11.1 battery and shoot below 350...
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