Well I finally had a chance to do some testing and with a chrono!
Temperature: 60* (Awesome weather for us lol)
Wind: Light Breeze
- 2012 Spyder Fenix
- Stock Internals
- I used Bob Long Regulator due to Stock reg not having a gauge to read.
- CP 2 piece barrel with .685 insert to match paint
- Crossfire 68/3000 CF tank.
- Handheld Sport Chrono
- Spectrum Field Paint
- TechT Hush Bolt
- Dark Horizons SS Striker
- 9 Piece Spring Kit (Valve Only)
Testing was done as follows. I shot 5 rounds each time I changed something to the marker. For example. In stock form I shot 5 times. I changed bolt I shot another 5 times and recorded each. The marker will be shot with the current setup as stated above and I will upgrade and chrono as I go.
Stock setup set @ 500 psi
Readings: 275, 272, 276, 278, 273 - avg 274 fps
Added Hush Bolt @ 500 psi
Readings: 302, 297, 299, 298, 300 - avg 299 fps
Adjusted regulator to meet adequate FPS @ 400 psi
Readings: 280, 278, 275, 282, 278 - avg 278 fps
Added Dark Horizons SS Striker @ 400 psi
Readings: 265, 259, 263, 260, 264 - avg 262 fps
Note: I didn't like the results of the striker. Lower velocity and internal scratching. So I stopped here and switched back to the original striker.
Added modified Light Valve Spring (More air allowed, stock is too stiff) @ 400psi
Readings: 299, 295, 297, 301, 293 - avg 297 fps
Adjusted Regulator @ 350 psi
Readings: 275, 281, 278, 273, 277 - avg 276 fps
After running these tests I'm happy with the results. I didn't get around to trying out the main spring just because the spring used in the Fenix are of different length compared to the 9 piece that I have. I was able to get the same results as I did when I went to play on Sunday. Minimal Kick (this is a blowback afterall...), very light marker, very quiet compared to other Spyders and I've built many, very fast, and lastly VERY EFFICIENT. I had my tank set at 2500 psi(my tank seems to not be able to hold a full 3000. I was able to get 4 Pods(140ct) and a hopper (total roughly 760 shots) and still had roughly 1000-1200psi left. If my calculations are correct. I can get about 1400 out of my 68/3000 tank compared to 680 shots using the rule of thumb method 68(ci) x 10(3000psi size) = 680. The EKO Valve with some upgrades really helps