I have never seen a reference to a 45 CXL, 60 yes, 45 no unless it is a market specific product. I have run many Enyas, most successfully and am currently breaking in an SS 45S (NOT the ring pro version unfortunately). So far over an hour and a half on it and it still needs more time. It has two running modes: screaming fast 2 stroke or irregular, ragged 4 stroke. Neither particularly useable for stunt IMHO. It will seize up occassionally or just quit. I had hopes that it would run as nice as my early vintage 6001 ringed 45's, not so. It also does not share the same mounting hole pattern as ST-46's which the older 46's do.
Have tried different venturis, props, plugs, fuels. Even flew it on a test-mule plane. Definitely not ready for prime time. Current plan is to put even more time on it and hope it comes in. As far as the 45SRing Pro goes, from what Martin says, it sounds like it is worth the extra money. That's the one I would recommend. More more user friendly than the plain "S" version. No need to worry about power with either version, these new Enyas are strong. As for my 45S (steel piston version), suggestions are welcome.
I friend of mine bought an Enya SS40 which is basically the same engine as yours but with a smaller piston. He broke in for 2H on the bench and the engine would not peak over 9000rpms with an 11x4, it would seize up every time he tried to run it faster. He thought there was something wrong witht the engine and brought it to me. I looked and found to be 100% with super compression. So I put it in my bench and attached an APC 11x4 prop and using all castor fuel with 0% nitro I ran a tank of fuel to see what was going on. In fact it seized up the moment I try to run it harder. After the engine cooled, almost immediately, it would fire up right away. Sure the piston/liner fit was very very tight, which is GOOD! I fire up again and this time I started to feel how fast the engine could run without seizing up by pressing the fuel line and kept the engine running at its peak for a few seconds barely rich and release the fuel line to let it go back to 4 Stroking for a while and then pinch the fuel line again to repeat the process. Well I did that the whole tank and at the end I could already see 9300rpms. Then I fill up again the 4Oz tank and repeat the process, at the end it was running better so I kept doing this for 4 more tanks and in the end the engine stop seizing up and could keep 11000 rpms a little rich. My friend was very impressed with the quick results and now very happy with his engine in his Vector. He is using a 10x6 prop 0 Nitro and it runs descent 4-2-4 Stock.
what I have learned is that some Iron engines comes with a tighter piston/liner fit and it needs an extra 3 or 6 4Oz tanks.
I am not sure how rich my friend did the 2H on the bench, but I guess he was too cautious. The Iron engines I broke in did not take more then 1h on the bench before they were good to fly and this is what I do.
Initially I run the engine 10 times of 1min. I turn the needle 3 turns, or 5 turns on the Pro NVA one, and set it up to run more in 4 then in 2. I would say about 90% in 4. I let the engine cool completely before starting again. Then I do the same but 8 x 2min, 6 x 3min. Then I start running full tanks and pinch the fuel line with care to make the engine peak rpm while slightly rich and keep it there for about 8s then release the pinch, wait about 30s and pinch the fuel line again, repeating the process for the full tank. Normally it does not take more then 5 tanks for the engine to be flyable.
For me the engine is good to go when I can feel it can sustain peak rpm for 10 seconds and when I release the fuel line it goes right back to the rpm very fast and run smooth.
If you want to run in 4-2-4 do not use nitro and use the hottest plug you can find. I like Enya 3 and Enya 4C. Or put 1, 2 or more head gaskets to tame the engine 4-2 break if you need to run nitro. Enya has many venturi sizes and head gaskets, so you can tune your engine to run the way you like.
I like to run these engines in a wet 2-2-2 or 4-4-4. You can tune for 4-2-4 but you will need to experiment lots of things to find the right spot for your plane, prop and fuel.
What model do you plan to use this engine with?
I would put an engine like this in Pathfinder, Oriental Plus, Saturn... use 10% nitro 25% total oil with most been castor, with an APC 12x4 prop.
Once the engine is fully broken in you can sure use it in a 60 size model up to 64oz
Let us know how it goes.
Martin