Discover the ultimate thermal management with the HPI EVOLVE Oil Cooler series. Featuring unique offset inner fins for maximum cooling efficiency, a built-in thermostat to prevent over-cooling, and proven track performance on cars like the S660 at Tsukuba Circuit. This guide explores the engineering behind optimal oil temperatures, core specifications, and why stable cooling is essential for engine longevity and professional racing success.

Discover HPI's FIA-certified racing harnesses and high-rigidity stainless steel floor bars. Engineered in Japan for ultimate safety, seamless installation, and track performance. Explore color lineups and driver reviews.

As summer heat peaks, a robust cooling system is vital to maintaining engine performance during track laps or stop-and-go traffic. HPI’s "EVOLVE" radiator series is a crystallization of technology designed to push cooling limits. Key features include "Micro-Pitch Fin" technology for maximized heat dissipation and an "Internal Control Plate" that ensures uniform coolant flow, eliminating wasteful hot spots. With three series options—STD, LIGHT SH, and MULTI FLOW—HPI provides p