I have followed this thread since its inception. And, I think it is one of the better threads on RCU. I'm amazed at the range of experience that so many have had with this engine.

Well, this Christmas I received an ST 2300 and during the last two weeks I've bench run it on three occasions - today was the third. I've burned less than 1/2 gallon of Wildcat 15%, 18% oil with 3 ounces of castor added. I initially ran the engine on the ST plug it came with but changed to an OS F today. (I use OS F plugs in all my super tigers.) I initially used an 18 x 6 wood prop but changed to an APC 17x8 today.

Today I got 8600 on the APC (I still may be running a little rich) and had it idling at 2000 (I did go as low as 1800 but felt more comfortable at 2000.) Transition is excellent!

I found the high-speed needle to be very broad and the idle needle very sensitive - a change of as little as 1/16 turn on the idle can make a very noticeable difference!

This is more bench running than I usually do on a new engine - I usually run them till I get a reasonable idle then fly to break them in.

I know it needs more break in but I'm more than happy with it.

I'm now looking for a plane to put it in.

Paul