3Racing 3RAC-MHS4/PU/V2 Racing 540 Motor Cooling Assembly Purple  [3RAC-MHS4/PU/V2]

3RACING Motor Heat Sink W/ Fan Ver.2 For 540 Motor (High Finger) - Purple - 3RAC-MHS4/PU/V2
Price:
USD$5.70
Brand:
3Racing
Model:
3RAC-MHS4/PU/V2
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Racing-Grade Cooling for 540 Motors

The 3Racing 3RAC-MHS4/PU/V2 is tailored for competitive 540 setups where thermal stability influences lap-to-lap consistency. The unit pairs a precision-machined heatsink geometry with a high-flow fan to reduce motor case temperature under extended high-load conditions, helping maintain RPM and torque output.

Optimised Heat Flow

The heatsink profile is designed to maximise surface area in the region of highest heat transfer while the fan enforces continuous airflow through the fins. This targeted approach reduces thermal resistance and limits peak motor temperatures during repeated runs.

Durability and Track Reliability

Components are specified to withstand vibration and heat cycles typical of racing use. Mount points and fan seating are reinforced to retain alignment, minimising performance degradation from mechanical stress.

Installation and Setup Notes

Fitment is straightforward, but competitive users should confirm clearance to pinion and chassis components before final assembly. Wiring the fan to a stable 5V-7V supply and checking for secure electrical connections will ensure consistent operation during events.

What cooling gains can I expect in race conditions?

Results depend on motor and ambient conditions, but users typically see lower peak temperatures and more stable thermal behaviour across multiple runs, which aids consistent lap times.

Are there recommended fan voltages for tuning?

Fans perform predictably within a 5V to 7V range; increasing voltage raises airflow but also bearing load. For racing, balance airflow with reliability when selecting supply voltage.

Any setup tips for best airflow?

Position the unit to allow unobstructed intake and exhaust paths, secure cables away from the fan, and confirm the fan orientation pulls air across the fins for maximum effect.