Well I finally had a chance to do some testing and with a chrono!
Temperature: 60* (Awesome weather for us lol)
Wind: Light Breeze
Humidity: 24%
Marker Specs:- 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
Upgrades:- 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.
First Trial:
Stock setup set @ 500 psi
Readings: 275, 272, 276, 278, 273 -
avg 274 fps
Second Trial:
Added Hush Bolt @ 500 psi
Readings: 302, 297, 299, 298, 300 -
avg 299 fps
Third Trail:
Adjusted regulator to meet adequate FPS @ 400 psi
Readings: 280, 278, 275, 282, 278 -
avg 278 fps
Forth Trial:
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.
Fifth Trial:
Added modified Light Valve Spring (More air allowed, stock is too stiff) @ 400psi
Readings: 299, 295, 297, 301, 293 -
avg 297 fps
Final Trial:
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
25fps Increase and then a drop of 50psi. Same goes for the spring, I'm glad you found something that worked. Those strikers never seems to workout for most people, spyders just don't seem to like lighted strikers.
