It problably sounds ancient but I just bought an ol NIB DF engine (OS 77) for my Byron F 16. I had conflicting statements about the power delivery for that engine using the Byrojet system. Some said the .91 would be a must upgrade(from a person selling a .91) and another who flew a Byron F 86 with the OS 77 and found the engine to be flawless. Yet another said his Byron F 16 was as fast with the 77 as it was when he upgraded to a .91.
I am opting to stick with the .77 and keep it simple on my beginner level. How do I go about knowing and tuning this engine for max RPM and how long or what distance the pipe should be from the head. Ive heard 10.5 inches from glow plug to Tuned pipe end, but that could be just something I had heard wrong.
Is the old method of pinching the fuel line a good method? In addition to that I have not yet invested in radio with more than 6 channels and wanted that 7th to set mixture. I came up with putting the mixture control on the retract servo arm and with gear down =max leaning for power on rollout and climb and on return it would be maxed for that just-in-case-go-around. In flight with gear up it will be rich but not so rich to be detremental to performance but rich enoung for longevity of the powerplant. That can be adjusted only on the ground by setting the pushrod position on the mixture control arm.
Some input here would help a great deal and hopefully be enough to get my F 16 in the sky.