You should give 4-stroke engines a try. If you do you will be hooked. OS 4-strikes are good but Saito engines more popular. Last few years they have been my favorites.

As far as 2-srroke's go I agree at Rossi is probably the best but they are getting harder to find. Super Tigre is another excellent brand, they probably have the best carb in the 2-stroke world.

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Originally Posted by RC Man

You should give 4-stroke engines a try.

you obviously haven't seen my videos... 80% of my actually flying engines are fourstrokes... most of my 2strokes are shelved.

I've flown them all in over 35 years. Hands down over the years O.S engines have given me the least grief. Especially in Helicopters. Currently I fly OS 2 strokes as well as OS and Saito 4 strokes. They are all bullet proof once broken in and tuned. The commonality IMO???....I use 30% heli fuel in EVERYTHING....between the nitro and oil content they just scream! YMMV.

*** Edit*** In all fairness I do run NovaRossi in boats...but that's only because O.S. discontinued competitive marine engines.

I’ve had a lot of different engine, mostly OS, but alsoK&B, Saito, Enya, ASP and Super Tigre. The only dog of the bunch was the early 90s Royal, nice looking but never ran good, even swapped out carb, OS and Super Tiger, no better.