outrunner size/kv for 1/16 summit ?
 

hi !

if i whant to replace the centergearbox and motor in a 1/16 summit truck with a outrunner motor ! how big does it need to be and what kv rating ?

You can use the parameter solver to get motor kv value needed:

Enter your:
- Enter the tire size
- Enter the differential
- Enter the battery voltage
- Enter your desired speed (if you want to keep the same speed you have now, calculate your current speed using the Top Speed Estimator Calc).
- For the transmission, enter 1 (outrunner is replacing this).
- For the spur, enter 1 (outrunner is replacing this).
- For the pinion, enter 1 (outrunner is replacing this).
- Leave the motor kv value blank
- Click the "calculate unknown" button.

The motor kv shown will be the motor you need.

After you find the kv via BG's method (listed above) I think a 28 size outrunner would do. The longer outrunners will provide more torque. You may be able to get away with a long 22 size outrunner. Not a ton of space to work with on the mini revo platform...