More CRT.5 Motor questions...

[rschoi_75]

Those motors would be better suited for primarily 2s. They would be completely insane on 3s.... 55mph+. Since they are Neu motors, they can handle the rpms, but not sure about how much heat it would create.

My set-up is similar. I run a Lehner Basic 4200 XL on 2s in mine. Its not the most popular set-up here, but it serves me perfectly since I have a lot of 2s lipos for my 1/10th electrics. My top speed with 16/46 gearing and 2.2 truck tires (3.8 inch dia.) is around 35-38mph real world. Brian's speed calc has me at 39.47mph. Heat has never been an issue with the lehner.

Differential Ratio: 3.25
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 16
Total Voltage: 7.4
Motor KV: 4250
Tire Diameter (inches): 3.8
Tire Ballooning (inches): 0.2
Motor Current Draw: 80
Motor coil Ω: 0.0057
Spur/Pinion Ratio: 2.88 : 1
Total Ratio: 9.34375 : 1
Tire Circumference (inches): 13.19 inches (335.15mm)
Total Motor Speed: 29512 RPM
Vehicle Speed: 39.47 MPH (63.39km/h)
Effective Speed Rate: 5.33mph/V (8.57kmh/V)
Effective KV Value: 3988.11
Motor Torque: 0.13 ft-lbs
Final Torque: 1.24 ft-lbs