I remember being told that.” not to polish the intake runners as the disruption in airflow helps atomize the fuel for a better burn” guys even put in dimples and such , but I never believed that. Look at today’s high power monster motors, everything is polished for flow. It was what was thought at the time.LOL

Even though were talking about an engine for an airplane, much can be learned and copied from the High End Car engine manufactures and Modder’s. These are IMO the cutting edge of 2 stroke performance in the 3.5cc size. Take a look at some of these motors. Wait to be sticker shocked!! But the performance is there.

Motorman37, nice numbers with the 10/8 now if we can get a baseline and some more prop readings 10/6 10/7 11/6 11/7 11/8. I have to say this motor looks promising and with great pricing on the motor and parts, modifications by end users become more feasible. I won’t hesitate to modify this motor; parts are so inexpensive compared to other motors.

Good Job Motorman37