ESC idea for brushless revo
 

MGM 8018 car. ill buy it off of icare-rc.com
here is a link
http://mgm-compro.com/index.php?tid=...018-3-car-boat
the setup will be
5s flightpower 25c
mega 22/35/2
17/38 gearing
here is the data

Differential Ratio: 2.8461538461538462
Transmission Ratio: 2.111111111111111
Other Ratio: 1
Spur Tooth Count: 38
Pinion Tooth Count: 17
Total Voltage: 21
Motor KV: 1500
Tire Diameter (inches): 6
Tire Ballooning (inches): 0
Motor Current Draw: 60
Motor coil Ω: 0
Spur/Pinion Ratio: 2.24 : 1
Total Ratio: 13.43087 : 1
Tire Circumference (inches): 18.85 inches (478.78 mm)
Total Motor Speed: 31500 RPM
Vehicle Speed: 41.86 mph (67.25 km/h)
Effective Speed Rate: 1.99 mph/V (3.2 kmh/V)
Estimated Adjusted Speed: 40 mph (64 km/h) - 5% loss
Effective KV Value: 1500
Motor Torque: 0.28 ft-lbs
Final Torque: 3.78 ft-lbs
Final Power: 1260 watts (1.7 HP)


are the mgm's as smooth as the kontroniks?

A 5s battery won't hold 21v while driving at 40mph. It will only be 21v off the charger with no load on it. For the calculator use 3.7v per cell or less.