Thanks for the assist info on the Elovltion.45. I have done all the things as prescribed. I have found a cracked needle valve. replaced and that worked good for 20 flights and the motor was excellent, then it started all over again. As a new pilot I need something that works well and isn't going to be a constant problem. Ever get that feeling like a cop is on your tail and you know that you have done something wrong. Thats the feeling i get when I put the evolution engine up in the air "OH crap is it going to deadstick on me again" I want to enjoy this not feel frustrated. I have had my instructor as well as many other fellows from the club look the motor over and all recomended to ship it back.

I was wondering if a SuperTigre G-51 Dual BB or the SuperTigre G-61 Dual BB ABC would mount up with out alteration and if these were a good selection for this plane. These engines are more in my price range right now. I would chose the OS engine but they are pricey.