49dimes
Damn I'm hungry
I can tell P-Huck was flying the Red White Black one. He has got a most distinctive throttle management when torque rolling.
Extreme Flight 104 Extra 300
- Thread starter JaseTheAce
- Start date
I can tell P-Huck was flying the Red White Black one. He has got a most distinctive throttle management when torque rolling.
Phil.Griffin
70cc twin V2
He does.
49dimes
Damn I'm hungry
Thanks!
49dimes
Damn I'm hungry
With your set up I would Set both needles back to 1.5 turns out. Run the engine and check set / peak rpm.
Check / set smooth transition. Then go fly it. If the surge is still there lean the low just a 16th or so and the high richen just a tad.
For some reason when using cans this engine can get very insensitive with the needles at first then very sensitive ( go figure). I believe this to be because the crank case pressure is lower and less stable in the midrange rpm band when new and causing the fuel path way in the carb to fight one another between high needle outlet and low needle outlet. This is my guess. I kept tuning until it was gone in very small increments and only slightly richened the high needle from 1.5 turns out. Your location can also play a roll as how much fine tune you have to do. It's a PIA but go fly for tuning reasons alone. You will get rid of that surge so don't worry. Once mine broke in the surge came back but it was minimal. The engine low end had richened up (which is normal) . Another tweek on the low needle and VIOLA!. Smooth raw power at me finger tips
.
Check / set smooth transition. Then go fly it. If the surge is still there lean the low just a 16th or so and the high richen just a tad.
For some reason when using cans this engine can get very insensitive with the needles at first then very sensitive ( go figure). I believe this to be because the crank case pressure is lower and less stable in the midrange rpm band when new and causing the fuel path way in the carb to fight one another between high needle outlet and low needle outlet. This is my guess. I kept tuning until it was gone in very small increments and only slightly richened the high needle from 1.5 turns out. Your location can also play a roll as how much fine tune you have to do. It's a PIA but go fly for tuning reasons alone. You will get rid of that surge so don't worry. Once mine broke in the surge came back but it was minimal. The engine low end had richened up (which is normal) . Another tweek on the low needle and VIOLA!. Smooth raw power at me finger tips
.
Capt.Roll
70cc twin V2
Ohio AV8TOR
Just Do It
Its really is a nice field. Hard to believe it was under water for a couple of months this season though. Very rare.
http://www.fwthunderbirds.org/