Enya 15-lll

Jim, the 3303 can be a bit problematic. They don't like the muffler at all and will overheat quickly. I found the FP .15 needle valve to work far superior than the stock unit due to the diameter being slightly smaller thus having a larger venturi. More fuel equates to more cooling. The 3303 has casted web stiffeners within the exhaust area which I feel contributes to it not liking the muffler due to further more restriction. The 3304 has a slightly larger diameter head for more cooling and no casting webs within the exhaust area. Shtterman has all of your Enya needs. http://www.ebay.com/itm/ENYA-15-19-VENTURI-ROUND-ALUMINUM-/291074439784?pt=US_Radio_Control_Control_Line&hash=item43c5637a68

This engine like the Fox .15 wants to turn up. Running a 8 " prop might suit the rc guys but it doesn't in the control line world. The APC 7x6 is much better. Don't be afraid of the nitro. This can be a happy engine on 15%. It also helps it run cooler. This engine though really doesn't like the wedge tank with the pickup far outboard as this can cause the engine to go way over lean at the end of the run. While uniflow helps, it doesn't solve this problem. Many times I would start out dead rich to the point it would barely get off of the ground and by the end of the run it was out of control lean. I solved this by changing my tank design. Enya's if not broken in can be a real pain in the rear. They just take forever to do so and this is why many got rid of them. That's when I would happily take them off of their hands as they would really turn out to be real nice running and dead reliable engines. Ken

Jim,

It's easy to change out the venturi. Throw a post out in the classifieds on SH or SS. Maybe even BOTR.

To be honest though RC carbs do work well due to a smaller opening and longer throat.

Ron

"Shtterman" (in USA) has lots of Enya parts and good service too; .15 venturi

Thanks for the input. Ken, I had just purchased a Venturi from Jim Lee right before you posted the eBay link. I will definitely use the Fp needle.  I will eventually put this motor in a perky so it will be short runs and no muffler. I may even disassemble the engine and dremel the center web out of the exhaust to open it up some and make it pretty.

Jim

The Enya .15-III TV is a powerful engine. I've flown it at the front of my Ringmaster Junior. With a Masters 8x6 prop and throttle wired fully open it does the same lap times as my OS Max .15FP-S on 8x4 prop, both unmuffled. This was using 15% nitro on both engines.





Ringmaster Jr. at 30" (760mm) wingspan and 200 in² (12.9 dm²) is a tad small for these engines, as I get 4 second lap times on 58 feet lines and to balance added significant weight to the tail. These engines are too heavy and too powerful for this small of plane.