8.0:1 GEAR RATIO FOR THE SYNERGY N9
RUNNING ON THE YS91SR
16T pinion
8.0:1 gear ratio is the combination of 16T pinion and 128T maingear. The reason that brought on this project was that the YS91SR has a lower power band than other motors; therefore, it needs a lower gear ration than 8.27 :1 (Synergy N9's stock gear ratio) to achieve the "pop" at 1950 heedspeed with lots of torque. This gear ratio has been tested and proven to make insane power out of a YS91SR at 1950 heedspeed. This project has been discussed here
16T pinion and 128T machined maingear
Here are some test flight footage:
I have a few sets of gears in stock. If anyone wants to try, please send me an email to ngkimlong@gmail.com and will reply to you in no time.
CHEERS!!!