30 or Saito 40 would be the right size/weight I believe. If you run 30% nitro with a large prop it might work for you (but thats a guess).

I would like to take this opportunity to discuss the charicteristics of a piped 2c. Doesn't putting a pipe on a 2c engine make the throttle transition sluggish? To where a 4c has better over all transition authority? Isn't that what 3D planes need? Not the blistering high speed's & horse power sluggishly built up from the supercharged effect of a pipe on a 2c, but the torque available at any position of the left stick that 4c's offer? I could be wrong here because alot of people use the piped 2c engine, I was just wondering what other people thought.

I realize that a hot 2c setup is probably what Ohyeah need's here (I don't know about a pipe though) but I was talking about the next few sizes up where you could get a supercharged 4c in place of a piped 2c. Does anybody know of a supercharger system designed for the 30-40 size 4c's?