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-   -   Set Up for Low Maintenance Hi ROF! (http://airsoftbuilds.com/forum/showthread.php?t=31)

mamba 07-01-2009 03:18 AM

Set Up for Low Maintenance Hi ROF!
 
There has been a lot of discussions regarding Hi ROF, I have ventured to the extreme and have found out that the most playable low maintenace hi ROF set up is between 25-30 ROF, >30 be ready to spend a lot.......hehehehehehehe!

Set Up for 350FPS without too much modification
1. Minimum 7mm bearing GB
2. SP90 spring
3. piston head with bearing
4. shaved 2nd/3rd tooth of PB (swiss chess it if you want)
5. Spring guide with bearing
6. stock gears/hi speed gears.
7. hi speed motor (we prefer M120)
8. Power source of your choice (I normally use 9.6v 3300-3600 NiMh/ 11.1 lipoly 12C-15C.

You can easily attain this, measured using audio analysis!
27 spikes/sec. = 27bb's per second
http://i272.photobucket.com/albums/j...7/SoundROF.jpg

I wish this could help!

TheReaper 07-04-2009 08:36 AM

Good post. I just fixed my high speed setup... lasted all of 2 minutes at my last game. :( Fired the gun a few times... gun jammed up and shredded the piston (and broke some teeth of the sector gear). I opened it up, and noticed I had put the sector clip on backwards... though I dont know if that would cause the gun jam?

mamba 07-06-2009 02:28 PM

Shredded piston body on a HiROF set up is always a direct result from improper AOE and combination of improper gear aligment which will result in a cathastropic mechbox failure. Buddy! try to invest so much time on shimmimg and aligning your gears. And there are available parts that will help you set a perfect AOE.

TheReaper 07-09-2009 10:55 PM

AOE was adjusted perfectly (or so i thought?)... Used lightweight washer/shims inbetween the piston/piston head. 2nd tooth, and part of the 3rd were removed... sector engaged the piston as flat as I could get it.

damageinc 07-27-2009 03:04 PM

I would like to share my Hi-ROF and low maintenance set up. I have a King Arms M4 CQB. Gearbox is completely rebuild. 3 years in service and going strong.

380fps with .2's
25-27 bb's per second on 11.1v 1200mah 12c
28-31 bb's per second on 11.1v 1800mah 15c

King Arms Ver.2 8mm gearbox
Kanzen 8mm bearing bushing
Prometheus M110sp
Prometheus Hi-speed Gearset
Deepfire Full metal teeth piston - 2 teeth shaved to correct AOE and Swiss cheesed piston body
Systema Hi-speed M4 cylinder
14 gauge Silicone wire
Systema Magnum.

Others
Sorbo pad in cylinder head
Prometheus POM piston head
Reinforced anti-reversal latch spring
Sector gear clip


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