![]() To generate as much rear downforce as possible, the lower part of the RE-Amemiya bumper has been cut away, and replaced with a functional diffuser to help extract air from under the car and use it efficiently. The front fenders, with their wild GT-like lower cut and louvered sections are one of the most visual aspects of the whole exterior, matched in girth to the over-fenders applied over the rear arches. The hood vents help expel hot air from under the engine and orient it cleanly around the sides of the car. This is achieved thanks to a lip spoiler and undercover section as well as a pair of strategically placed carbon canards, while the front bumper openings provide the necessary air to the V-mounted intercooler and radiator. The result it a refreshingly unique-looking RX-7 with an aggressive front end, styled around boosting both aerodynamic downforce and cooling performance. With the running chassis and all mechanical components ready to go, it was then a matter of coming up with visibly suitable exterior to complete the car.Īside from the RE-Amemiya AC987 rear end conversion, which replaces much of the rear including the whole taillight assembly-as well as the Scoot hood, everything else on the Fukuoh FD is original aero. An HKS twin-plate clutch and ATS two-way carbon LSD complete the upgrades to what is a pretty bulletproof driveline. On the transmission side of things the stock gearbox has given way to an HKS six-speed sequential for tenths-shaving machine-gun upshifts. These qualities are a direct result of the special bridge porting that was done prior to the engine's build. These are all great numbers on paper, but as Fukuoh specifies, it's the always present response and explosive acceleration that makes it such a well-focused Time Attack car. On Fukuoh's own chassis dyno and with a custom mapped F-Con V Pro the 13B managed 513 hp at 7,800 rpm with a very usable midrange torque peaking at 5,500 rpm. ![]() Additional cooling comes from the HKS oil coolers mounted within the bumper. A custom radiator was then added along with an air separator system to avoid any sort of overheating issues, something 13Bs are notorious for. To keep restrictions and pressure drops to a minimum, Fukuoh created his own end tanks and large diameter piping, with the intake ending up in a custom elbow that promotes better flow and larger volume. The HKS intercooler fitment followed next, arranged in a V-mount layout to make best use of the airflow coming in from the front grille. The turbo kit includes a stainless steel exhaust manifold and front pipe both used along with a custom big bore titanium exhaust that Fukuoh fabricated in-house. This included the HKS T04Z blower, a trusted and proven turbo in Japan that continues to be the number-one choice for both street and track applications. With the basic engine completed, it was fitted back into the chassis, the braided fuel lines laid down, and the rest of the ancillaries fitted. HKS injectors were deemed necessary to quench the unavoidable thirst for hi-oku (high-octane), kept topped up thanks to a pair of in-tank HKS pumps. So after taking the base motor apart he created his own special bridge ports and sealed up the engine with special WPC-treated apex seals and 8.5:1 compression rotors. The engine was the next big project and, with years of experience fettling with the 13B, Fukuoh-san knew exactly what would be needed for great times out on the track.
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