ABC or Ringed
 

I'm wondering due to under power of my 30 which weighs as much as my 50. ABC's boast higher horse, higher RPM's. The ringed boast longitivity. What do you think of ABC versus rings?

RE: ABC or Ringed
 

Simple. O.S. .37 SZ-H Ringed

ABC is also more picky about settings and temperature.

RE: ABC or Ringed
 

I recommend a ring, especially if you're a newbie. Heli engines are very hard to tune properly and tend to run hot because of the poor cooling.
Ringed engines are much more tolerant to such abuse.