For stunt use with the Enya III 5224 .35, with 2 heads, and three venturi inserts, I assume that we use the low compression head, but which venturi insert? Large , medium, or small. I would guess the medium would be a good choice.
Don Jones
Enya .35 head & venturi inserts
Stuka Stunt Main Forum · 5 of 5 known posts recovered
Hi Don,
Mine has small numbers on them (they are the square ones) #1, #2, #3.
Having lost the #1 (smallest), I use the #2! If I had the small one I would try it. I would start with the #2 and see how it goes. They are easy enough to change.
Oh yeah, you are right about the low compression head. I have found the Enya to really run a good 4-2 and it has never shown any sign of wearing out! (over 30+ yrs. and it was used when I got it)
Bill <><
Mine has small numbers on them (they are the square ones) #1, #2, #3.
Having lost the #1 (smallest), I use the #2! If I had the small one I would try it. I would start with the #2 and see how it goes. They are easy enough to change.
Oh yeah, you are right about the low compression head. I have found the Enya to really run a good 4-2 and it has never shown any sign of wearing out! (over 30+ yrs. and it was used when I got it)
Bill <><
Disclaimer: I am neither a NATS Champion, engine reworker, engine producer, column writer, Hobby Shop owner, *rockeet* scientist, nor otherwise. Just an old Advanced flier.
I got to agree with Bill on this one and I can't add anything except to be sure to run straight castor lube in your fuel.
Bill
I have no claim to fame, I build more planes than I fly, collect more kits than I build. That about says it, right?
The #1 is the most prefable, but if you only have the #3, I have blocked off the venturi with a piece of cork or balsa and the engine ran great. Before I did this it ran like a scaled dog, that was 1971 and the engine still has the cork in the venturi. I was using the plastic white red tipped nylon Top Flite props, money was tight and breaking a prop sometimes ment no more flying. We also loved the Enya NVAs and put them on everything but the Fox engines. I hated the Fox NVA as the engine would quit, this was before I knew about tank positions, while flying inverted and on a profile they would break off. This was remedied by attaching a piece on 1/8 plywood on the top of the profile so the plywood wood stick up far enough to act like a skid and protect the needle valve from snaping off. It was attached with those crummy perfect engine mounting bolts that all of us used before we knew a different way. A broken needle ment no more flying. Jim J