Accel pitts engine up grade??
Helo
I have os 46 AX in my pitts and the power isnt very good. I have made 5 flights with it and thats it.
I was wondering if up greading to os 55AX will make big difference. It would be simple becouse the 55 has identical dimensions as 46.
Or should i go with .61 size 2 stroke?