Now that I got your attention lets discuss (with real suggestions) how to make this motor run. I had the first Eagle .60 version I which ran well. When this engine finally wore out,, I sent it to Fox and they were gracious enough to replace it with an Eagle .74 + $$. Ok,, I need no comments here .. The Replacement Eagle (I will call engine #2 ) would never transition to full throttle from idle. It would turn ok at full throttle and Idle but not accelerate without dying. I replaced the carb with the new "easy to adjust" air bleed. The problem did not go away. Finally after much !@#$# I gave the engine away. Well guess what.. Yup you got it,,, I was given another Eagle .74,, (engine #3). So,, my thoughts are,, maybe the first was just a bumb engine. So I have been attempting to break in the "new" Eagle #3. But still same problem won't transition. I know Fox states 5% nitro and castor,, I even used Fox gold star fuel made exclusively for this engine. Same problem. Adding castor,, lets not go there,, didn't work either. I even made and extra head gasket to lower the compression,, no help. Engine #3 is running with the Perry carb and adapter. The engine runs smoother and idles well but still won't transition. Top end with an 11x8 MAS prop is 11,800 which is ok, and idle is really good, but didn't tach it. When the throttle is opened up at a ("Normal") rate for a go around from bad approach the engine blows fuel out of the carb and quits deader than a hammer. Every time it does this and is repeatable. I have tried fuel at 5, 10, 15% with 20% castor, 10% castor 0% castor and 20 % syn. then 18% syn. The plugs were Fox idle bar,, OS F and Hanger 9.

My suspensions are the timing of the ports on the crankshaft open too soon trying to get air quicker but allows compression gasses to blow out of the carb interrupting the flow of fuel,, then dies immediately. I really think retiming the crank (which I won't do) or possibly a fuel pressure regulator to control pressure on acceleration.

I know this engine will attract many of "those" comments for fun.. but please keep this professional. Currently I do not plan to fly this engine when Enya, OS and Saito are around. But it would be nice to say "WE" solved this problem.

I have spoken to FOX reps many times on this problem but they have not provided any useful info on this engine. I think this is a design problem.

So thank you in advance if you can provide some light on making this engine transition from idle to full throttle. Vettdvr