1/6 Losi Hummer (CC1717) Build

[brian015]

I took this out for its first shake-down run and everything looked good. I ran it for 5 or so minutes - lots of power from the esc/motor combo on 6s.


Here is the set-up I'm running:

Castle xo-1 1717 motor (1650kv)
EZrun 150a Pro esc
2x6s Gens Ace 4000mAh 25c in parallel
Hostile MX fronts all around
Muggy gearing (45/11)
50t spur/14t pinion

Here is the top speed estimator:

Differential Ratio: 4.090909090909091
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 50
Pinion Tooth Count: 14
Total Voltage: 22.20
Motor KV: 1650
Tire Diameter (inches): 6.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 3.57 : 1
Total Ratio: 14.61039 : 1
Tire Circumference (inches): 20.42 inches (518.68 mm)
Rollout: 1.40:1
Total Motor Speed: 36630 RPM
Vehicle Speed: 48.48 mph (77.88 km/h)
Effective KV Value: 1650
KT constant: 0.82 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...

I hope to get it out for a longer run this weekend and check temps with this gearing.