the screws are short, don´t touch the windings.... The center diff have 7k.....

7k diff fluid should be ok in a buggy, but are the fronts unloading? If they are try thicker fluid. If they aren't check for binding in the drivetrain. No binding, how's the spur to pinion mesh? If that's ok learn to drive smoother. Drive smooth + still hot = find another hobby! Sorry I'm not an expert but i've hit on all the common things to check for. Maybe someone else will chime in and help

the front tires do a little baolling and the mesh is good, I am runing with a kyosho nylon spur and it run great. Thank you e-revonut.

I can put the 1515 3d geared for 39mph, can it kill nitros or is not enough????

I can do these configurations for my buggy:
Medusa 2000kv: 13/46 whit it gear it go 160ºf fast
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 13
Total Voltage: 18.5
Motor KV: 2000
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.54 : 1
Total Ratio: 11.70414 : 1
Tire Circumference (inches): 14.14 inches (359.08 mm)
Total Motor Speed: 37000 RPM
Vehicle Speed: 42.32 mph (67.98 km/h)
Effective KV Value: 2000


15/46 with it gear it go 160ºf after 10min
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 15
Total Voltage: 18.5
Motor KV: 2000
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.07 : 1
Total Ratio: 10.14359 : 1
Tire Circumference (inches): 14.14 inches (359.08 mm)
Total Motor Speed: 37000 RPM
Vehicle Speed: 48.83 mph (78.44 km/h)
Effective KV Value: 2000

17/46 I do not know how it run
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 17
Total Voltage: 18.5
Motor KV: 2000
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 2.71 : 1
Total Ratio: 8.95023 : 1
Tire Circumference (inches): 14.14 inches (359.08 mm)
Total Motor Speed: 37000 RPM
Vehicle Speed: 55.34 mph (88.9 km/h)
Effective KV Value: 2000


NEU 1515 3d

17/46 I do not know how it run
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 17
Total Voltage: 18.5
Motor KV: 1360
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.012
Spur/Pinion Ratio: 2.71 : 1
Total Ratio: 8.95023 : 1
Tire Circumference (inches): 14.14 inches (359.08 mm)
Total Motor Speed: 25160 RPM
Vehicle Speed: 37.63 mph (60.45 km/h)
Effective KV Value: 1360

19/46 it get 158ºf after 20 minutes, it motor have a very good runtime.

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 19
Total Voltage: 18.5
Motor KV: 1360
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.012
Spur/Pinion Ratio: 2.42 : 1
Total Ratio: 8.0081 : 1
Tire Circumference (inches): 14.14 inches (359.08 mm)
Total Motor Speed: 25160 RPM
Vehicle Speed: 42.06 mph (67.56 km/h)
Effective KV Value: 1360

Neu 1515 2.5d

15/46 I do not know how it run
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 15
Total Voltage: 18.5
Motor KV: 1650
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.01
Spur/Pinion Ratio: 3.07 : 1
Total Ratio: 10.14359 : 1
Tire Circumference (inches): 14.14 inches (359.08 mm)
Total Motor Speed: 30525 RPM
Vehicle Speed: 40.29 mph (64.71 km/h)
Effective KV Value: 1650

17/46 I do not know how it run
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 17
Total Voltage: 18.5
Motor KV: 1650
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 2.71 : 1
Total Ratio: 8.95023 : 1
Tire Circumference (inches): 14.14 inches (359.08 mm)
Total Motor Speed: 30525 RPM
Vehicle Speed: 45.66 mph (73.34 km/h)
Effective KV Value: 1650

19/46 I do not know how it run

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 19
Total Voltage: 18.5
Motor KV: 1650
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 2.42 : 1
Total Ratio: 8.0081 : 1
Tire Circumference (inches): 14.14 inches (359.08 mm)
Total Motor Speed: 30525 RPM
Vehicle Speed: 51.03 mph (81.97 km/h)
Effective KV Value: 1650




what motor I need to use in my buggy???? and what gear????

160 is not bad after 20mins of use. The medusas do get warmer than the neus...

If you give temps on the medusa that would be helpful.