3Racing 3RAC-MHS5/RE/V2 Competition Fan Heat Sink for 540 Motors  [3RAC-MHS5/RE/V2]

3RACING Engine Heat Sink Motor Heat Sink W/ Fan Ver.2 For 540 Motor (Fan-Shaped) - Red - 3RAC-MHS5/RE/V2
Price:
USD$5.70
Brand:
3Racing
Model:
3RAC-MHS5/RE/V2
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Thermal Management for Competitive 540 Setups

The 3Racing 3RAC-MHS5/RE/V2 is developed with racer needs in mind, combining an axial fan and fin array to lower motor case temperature and reduce thermal drift during extended heats. Its compact profile keeps weight and packaging impact to a minimum while improving thermal throughput.

Performance-Oriented Details

  • Targeted Airflow: The fan directs airflow through the fin surfaces to increase convective cooling across the motor case.
  • Durable Construction: Designed for repeated trackside use and secure mounting under race conditions.
  • Rapid Fitment: Mount points follow common 540 layouts so setup time at the track is kept short.
  • Operational Consistency: By reducing peak temperatures, the sink helps maintain predictable motor behaviour throughout run windows.

What should I check before installing on a race motor?

Confirm motor can diameter and shaft protrusion, and ensure no chassis components obstruct the fan intake or exhaust path.

Recommended ways to power the fan for racing use?

Use a regulated receiver output or a dedicated low-voltage tap; avoid unregulated high current sources to prevent overdriving the fan.

Any setup tips to maximise cooling?

Keep intake and exhaust pathways clear, position the sink for unobstructed airflow, and clean fins regularly to maintain thermal efficiency.