This list will grow with time.
Stock 20 turn 540 motor
On flat ground it has a reasonable amount of speed but has unsatisfactory torque and high temperatures with the stock 23 tooth pinion. Installing a 17 tooth pinion improved things but still wasn't to a level I felt was appropriate .
Pinion Tooth Count: 23
Total Voltage: 8.4
Motor KV: 3216
Top Speed (MPH): 25.73
Pinion Tooth Count: 17
Total Voltage: 8.4
Motor KV: 3216
Top Speed (MPH): 19.02
27 turn 540 Mabuchi
With a 17 tooth pinion temperatures where good top speed was mild but enjoyable . The boost in torque was noticeable.
Pinion Tooth Count: 23
Total Voltage: 8.4
Motor KV: 2437
Top Speed (MPH): 19.49
Pinion Tooth Count: 17
Total Voltage: 8.4
Motor KV: 2437
Top Speed (MPH): 14.41
550 19 turn Redcat Racing part # 28446
Don't ask me why the motor is listed as a 19 turn when the code on the can states its a 20 turn all I can say is close enough.
This motor to me is a good first mild upgrade if you can find it on Ebay or such for less than $15 bucks. If its over $20 there are other options out there that can get you essentially the same motor or better for the same cash.
To be honest this is the motor that should have shipped with the Ground Pounder from the factor as it provides a reasonable top speed " but slower than stock" and plenty of torque with the included 23 tooth pinion . If you want a bit more speed you could easily install a bigger pinion and sacrifice a bit of torque for more speed. Or you up the voltage which would be what I would do .
Pinion Tooth Count: 23
Total Voltage: 8.4
Motor KV: 2125
Top Speed (MPH): 17
Pinion Tooth Count: 33
Total Voltage: 8.4
Motor KV: 2125
Top Speed (MPH): 24.39
Pinion Tooth Count: 23
Total Voltage: 12.60
Motor KV: 2125
Top Speed (MPH): 25.5
Leopard LBP3650/3.5D 3900KV 4-Poles Inrunner Brushless Motor RTR
Pulled this motor and the ESC from the Redcat Twister I am No longer running . All I can say is wow complete over kill Currently Running this with a 10 tooth Mod 1 pinion and the 43 tooth Mod 1 spur gear . After twisting 2 driveshafts I have lowered the punch level of the HobbyWing / Lansu ESC to 2 and am now lowering the timing to make it more drivable and to help safeguard the fresh shafts till upgraded ones are installed .
Spec's
Max
Amps Max Voltage Max
Power KV
(RPM/V) Resistance
Dia. x Length
(mm)
Length of
Extend Shaft Shaft Dia. Weight
86A 15V 1300W 3900KV 0.0075 Φ36.0×50
16mm 5mm 185g
Pinion Tooth Count: 10
Spur gear tooth count: 43
Total Voltage: 8.4
Motor KV: 3900
Top Speed (MPH): 25.55
(Not attempted yet )
Pinion Tooth Count: 10
Spur gear tooth count: 43
Total Voltage: 12.6
Motor KV: 3900
Top Speed (MPH): 38.33