Ys Produce’s RX-7 with a 26B Four-Rotor Racing at WTAC

Yuuki Kamakura and his Ys Produce Mazda RX-7 (FD) traveled from Japan to Sydney, Australia for the World Time Attach Challenge 2025. Yuuki’s RX-7 is powered by a naturally-aspirated 2.6 L “26B” four-rotor built by Scoot Sports capable of 600 hp (441 kW). The motor features RX-8 housings, peripheral porting, Scoot Sports intake manifold, Toda Racing S2000 throttle bodies, four Sard 600 cc primary injectors, and four Sard 800 cc secondary injectors. The drivetrain uses a ATS carbon twin-plate clutch, Holinger sequential transmission, and Cusco 2-way differential with a 4.3 ratio. Yuuki set a lap time of 1:31.34 but was disqualified for donuts in the pit lane.

Source: Ys Produce and @ys_produce_japan