Hi RcPilet,

Our comments, as always here, are prefaced with IMO (not everyone will include the H; notice that I didn't; DOH) ). (not looking for a flame war here, this isn't directed at anyone)

I would suggest conferring with experts in the field (e.g. Clarence from RCM). 4-strokes are documented, even by the 2 stroke manufacturers, as having more torque (thereby allowing a bigger prop to spin if you wish), lower fuel consumption and burn cleaner but, to your comments, harder to tune and more expensive, than their 2-stroke counterpart. For sound, nothing beats the 4-stroke either

No one is saying that 2 strokes are bad; there are just differences in what the engines provide. Alstack, who started this thread, seems to be mostly right on the mark for what he is looking for. In all honestly this discussion is probably best left to the Engines forum where it is hashed out weekly .

As for Alstack, he can get the engine he wants to get for his Contender and enjoy it. That's really what it's all about.

Nuker