2026/04/30

Announcing a New Direction in Cooling Management: The Next-Generation Dual Cooling Project

「DUAL COOL RADIATOR」&「High-Flow Core Condenser」

J’s Corporation Co., Ltd. (Headquarters: Ibaraki City, Osaka Prefecture; Representative Director: Junichi Umemoto; hereinafter “the Company”) is introducing a new intelligent cooling system that sets a new standard for cooling management. Featuring two new devices for the CIVIC FL5—the “DUAL COOL RADIATOR” and the “High-Flow Core Condenser”—this system supports temperature control across a wide range of conditions.

Translated with DeepL.com (free version)

This product is a new intelligent cooling system designed to support temperature management across a wide range of environments—from track driving to everyday street use. It was developed through a forward-thinking approach to the future of cooling that goes beyond conventional methods focused solely on “cooling.”

DUAL COOL RADIATOR(左)、High-Flow Core Condenser(右)

■ “DUAL COOL RADIATOR”: A new cooling concept from J’S RACING

The “DUAL COOL RADIATOR” is a cooling device that incorporates a new concept of integrated management of both coolant and oil temperatures. Developed in collaboration with DAIWA RACING LAB, it rethinks the traditional “radiator + air-cooled oil cooler” separate configuration and proposes a next-generation design featuring a built-in water-cooled oil cooler. This achieves more efficient and stable temperature control.

A “water temperature-based” control system that is less susceptible to seasonal changes and driving conditions
The design is structured to make it easier for the oil to heat up by utilizing the water temperature during the winter, while in the summer, it aims to minimize fluctuations in oil temperature by maintaining a stable water temperature.

Optimized Heat Exchange Efficiency with Rectangular Fins
Unlike conventional round fins, which made contact with the tube at a single “point,” we have adopted rectangular (trapezoidal) fins that increase the contact area. Additionally, louvers designed at a specific angle efficiently direct airflow for cooling.

Adoption of 0.25mm Tube Thickness: Heat Dissipation Achieved Through a 0.05mm Reduction in Thickness
We have reduced the tube thickness from the standard 0.3 mm to 0.25 mm. This reduction of just 0.05 mm shortens the distance between the coolant and the outside air, creating a structure that facilitates heat dissipation.

Verified through real-world driving tests on a circuit
We conducted driving tests on the J’S RACING FL5 demo car at an international circuit during the height of summer and confirmed that it delivers cooling performance capable of withstanding high-speed laps.

<Product Overview: DUAL COOL RADIATOR>

・Product Name: DUAL COOL RADIATOR
・Compatible Vehicle: CIVIC FL5
・Price: 297,000 yen (tax included)
・URL:https://www.jsracing.co.jp/js2/index.asp?xMODE=SHOP&xSW=3&xBLAND=1&xSHASHU=53&xPARE
NT=115&xNO=RAS-L5-RROC&xKEYWORD=

■「“High-Flow Core Condenser”: A new design that strikes a balance between airflow performance and heat exchange

The “High-Flow Core Condenser” is a next-generation condenser developed specifically for use in combination with the “DUAL COOL RADIATOR.” Designed to balance heat exchange efficiency with airflow performance, it features a structure that ensures smooth airflow into the radiator while the vehicle is in motion.

Aerodynamic Core Design: An aerodynamic design that enhances airflow performance
The fin pitch and core shape have been completely redesigned from scratch to create a structure that allows airflow to flow easily toward the rear cooling system.

Thermal Balance Optimization: Design focused on heat exchange efficiency
The core area has been optimized to achieve the ideal balance between heat exchange and airflow performance.
It improves airflow to the radiator while maintaining air conditioning comfort, thereby supporting water temperature management.

Lightweight Construction: Agile handling through weight reduction
The lightweight design reduces front overhang, contributing to improved vehicle maneuverability.

<Product Overview: High-Flow Core Condenser>

・Product Name: High-Flow Core Condenser
・Compatible Vehicle: CIVIC FL5
・Price: 96,800 yen (tax included)
・URL:https://www.jsracing.co.jp/js2/index.asp?xMODE=SHOP&xSW=3&xBLAND=1&xSHASHU=53&xPARE
NT=115&xNO=HFC-L5&xKEYWORD=

【About J’s Corporation, Inc.】

J’s Corporation operates “J’s Racing,” a brand specializing in Honda vehicles. Guided by the philosophy that “parts development is always honed on the racetrack,” the company develops and sells products that are highly regarded worldwide. In addition to its vehicle sales business, which handles approximately 2,500 units annually, and the development of the high-performance mirror brand “Craft Square,” the group operates a wide range of businesses through its subsidiaries, including J’s Trans Co., Ltd., which handles logistics, and Central Circuit Co., Ltd., which operates a JAF-certified racetrack.

Address: 1-3-2 Saito Moegi, Ibaraki City, Osaka Prefecture
Representative: Junichi Umemoto, Representative Director
Founded: November 1989
URL: https://jscorporation69.com/

【Media Inquiries】

J’s Racing PR Office (Kyodo PR)
Contacts: Endo, Oshima, Kobayashi
TEL: 06-4400-9641
E-mail : jsracing-pr@kyodo-pr.co.jp

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