3Racing 3RAC-MHS5/TI/V2 Racing Grade Titanium Heat Sink with Fan  [3RAC-MHS5/TI/V2]

3RACING Engine Heat Sink Motor Heat Sink W/ Fan Ver.2 For 540 Motor (Fan-Shaped) - Titanium - 3RAC-MHS5/TI/V2
Price:
USD$5.70
Brand:
3Racing
Model:
3RAC-MHS5/TI/V2
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Race Focused Cooling for 540 Class Motors

The 3Racing 540 Motor Titanium Heat Sink with Fan targets thermal stability in competitive settings. Its low mass titanium construction minimises weight gain while the integrated fan delivers directed airflow to keep motor temperatures controlled through qualifying and mains.

Optimised Thermal Path and Robust Build

Constructed for durability and steady heat conduction, the titanium body maintains consistent contact with the motor can, reducing thermal resistance. This results in fewer temperature spikes and more predictable motor behavior when tuning gearing and timing for race conditions.

Installation and Setup for Performance Use

The sink is sized for standard 540 mounts to ensure reliable fitment. For best results pair with a proper thermal interface and secure the fan wiring to avoid interference with steering or drivetrain components during competitive runs.

How does this affect motor tuning choices?

Lower running temperatures can allow for more aggressive timing or higher sustained loads without thermal cutoff, but make adjustments incrementally and monitor temps lap to lap.

Is there a recommended thermal interface for best results?

A thin, high quality thermal paste or a precision cut thermal pad provides optimal conduction between the motor can and the titanium sink for race use.

Will the fan introduce failure points in endurance events?

The fan is a small moving part, so for long endurance events ensure robust mounting, protect the wiring, and inspect the fan before long runs to prevent issues.