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Scorpion announces new RR-3420 series motors for the high demands of 1/10 and 1/12 scale ROAR racing

Logo for Scorpion Power System Limited Available in four versions, Scorpion's new racing motors have been extensively field tested and are designed to comply with IFMAR (International Federation of Model Auto Racing) standards

Scorpion RR-3420 brushless motorThese four motors are designed for use in 1/10 and 1/12 scale RC racing cars. They've been extensively field tested and have proven themselves by shattering numerous IFMAR race records in the demanding Radio Operated Automobile Racing (ROAR) environment, for which they are currently going through the approvals process.

The motors feature sensor-based control and precision and bring huge brushless power to 1/10th and 1/12th scale electric race cars. Years of research and development by Scorpion's engineers combined with on track testing by professional drivers has made these motors blisteringly fast without giving up smoothness or drivability

All four motors use a 12.50 mm rotor for maximum torque, braking power and performance with low operating temperatures. The four versions are a 10.5T wind (3783KV), a 13.5T (2938KV), a 17.5T (2200KV) and a 21.5T (1830KV) - one of those is probably going to suit most applications.

All these motors have the following market leading features:

  • Patented Screw-type rotor surface to increase flux density and maximize cooling
  • Built-in Cooling Fan on the rotor to increase airflow and decrease internal temperatures
  • No plastic inserts are used to achieve maximum copper fill for the motor windings
  • Rotor magnets are protected by a metal sleeve for maximum durability
  • Built-in temperature sensors allow for on-track monitoring when used with Scorpion ESC
  • 200% more cooling surface than other comparable motors for better heat dissipation
  • The largest glued surface for the rotor, shaft and magnets of any motor in its class
  • High grade Silicon Steel is used in the stator assembly for maximum flux density
  • High purity copper wire is used for minimum internal resistance
  • High temperature magnets are used to take the heat of competition
  • Motor parts CNC machined from 7075 aerospace grade aluminum alloy

Scorpion RR-3420 exploded view Scorpion RR-3420 dimensions  


Scorpion RR-3420 series Product page
Scorpion Power System's Home page
Manual / User guide for RR-3420 motor

Published: 23 Jul 2016

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