Michael,
Perhaps there is a problem with the ring, after a gallon you should have some compression cold, but these engines will built up compression with more time running.
I have no reference of peak rpms but over 10k RPMs with an 11x6 it doesn't sound tooo bad.
My friend has an Enya 45 and I have the SS50 and the ring, like Franks rings, needs more then a gallon of fuel for the ring to seat properly. At least my older Enya 45 6001 with Franks ring took about 3 gallons to achieve peak power and smoothness.
The Enya SS45 has the same case and piston of the Enya SS50, just a little shorter stroke so I think they are not too much different.
The original muffler could be robbing some good power. I have seen new SS45 coming from factory with the exhaust hole enlarged from stock and other just stock. I did enlarge mine as much as I could with a round file and it helped. But what really worked was the Aeroproducts Muffler, venturi bored out to 7.8mm. With the APC 12.25x3.75 I got an UNBELIEVABLE STUNT RUN in high RPMs, generating massive power for a 60 size ship.
I'd like to try a Bolly 12x4.25 3 blade or a Brian Eather 12x3.75 3 blade.
If you like to get a classic 4-2-4 with a 6" pitch prop, you get the engine re timed. A friend raised the the intake ports almost to the same height of the exhaust and his engine run a smooth 4-2-4 with a 12x6 prop. But it did not generate as much power as the stock engine with the low pitch prop and higher RPM.
Martin
Topic: Enya SS45 Ring S-PL PRO ~ How much Power should I expect? (Read 1581 times)