Conflux Technology 3D Printed Oil Cooler Finishes Full Endurance Race With 20% Better Heat Rejection

Conflux Technology, an Australian engineering company specializing in 3D printed heat exchangers, has achieved a significant milestone by completing a full-distance endurance race with a additively manufactured transmission oil cooler installed on a Multimatic Motorsports race car.

From Design to Race Track in Two Weeks

The configurable transmission oil cooler was adapted to the program's specific boundary conditions and produced in just two weeks using metal additive manufacturing. The unit was integrated into a shared water circuit where engine coolant managed gearbox oil temperatures.

"Endurance racing is the ultimate test for any cooling system," said Glenn Rees, Principal Engineer at Conflux Technology. "We've shown that our configurable, 3D printed technology can move from design to race car in weeks, deliver significantly improved performance, and still be trusted to reach the finish line in some of the world's toughest races."

20% Better Performance in Same Package

In this configuration, the 3D printed oil cooler delivered approximately 20% higher heat rejection than the incumbent solution within the same packaging envelope. This increase provided additional thermal headroom without requiring extra space, weight, or aerodynamic modifications.

The additive manufacturing process enabled highly optimized internal channels that increase heat transfer while controlling pressure drop within a compact, lightweight envelope. According to the company, this approach reduces non-recurring engineering costs and shortens program time-to-track compared with traditional manufacturing.

Proven in Harsh Conditions

"At Multimatic we look for partners who can combine innovation with robust delivery," said Julian Sole, Design Manager at Multimatic Motorsports. "The Conflux oil cooler, built from their configurable design and packaged efficiently in a very tight space, delivered the reliability we required over a full endurance race distance."

This isn't Conflux's first venture into high-performance applications. The company has also worked with Airbus on hydrogen fuel cell thermal management for the ZEROe hydrogen-powered aircraft program, and collaborated with Pagani on a transmission oil heat exchanger for the Utopia hypercar, where it achieved approximately 30% improved heat rejection.

The same configurable oil cooler architecture is now available to other OEMs and race operations seeking increased thermal capacity within existing packaging constraints.