Hiro Takahashi
12 years at Mazda R&D Hiroshima (2003-2015). Lead engineer on 13B-MSP RENESIS development team. Certified Mazda rotary powertrain specialist. Currently operates an independent rotary rebuild service and consults for RE Amemiya and Goopy Performance.
Hiro Takahashi is a former Mazda R&D engineer who spent 12 years working on rotary engine development at Mazda's Hiroshima research center. He contributed to the RENESIS engine development (13B-MSP in RX-8) and the final production variants of the 13B-REW for the RX-7 FD3S Spirit R. Since leaving Mazda in 2015, Hiro has worked as an independent rotary specialist and writes about Wankel engine technology for global enthusiast publications.
Articles by Hiro Takahashi
Mazda RX-7 FD3S Complete Buyer's Guide — Rotary Engine Reality Check
The Mazda RX-7 FD3S with the 13B-REW engine (1992-2002) is one of the most sought-after JDM chassis in the world. Whether you're a first-time buyer or a returning enthusiast, this guide walks through everything you need to know before committing to a purchase: realistic market va
RE Amemiya: The Mazda Rotary Specialist Behind FD3S Legends
If you own a Mazda rotary — RX-7, RX-8, or Eunos Cosmo — and you want the absolute best engine work money can buy, there is one destination: **RE Amemiya** in Chiba, Japan. Founded in 1974 by **Isami Amemiya**, RE Amemiya is the undisputed Mazda rotary specialist of the Japanese
Mazda 20B-REW: The Three-Rotor Wankel That Powered the Cosmo Unicorn
The 20B-REW is one of the rarest production engines ever built. It's Mazda's **three-rotor Wankel** engine — essentially a 13B rotary with one extra rotor bolted on — and it appeared in exactly one production car: the 1990-1995 Eunos Cosmo, a luxury coupe sold only in Japan.
Mazda RX-7 FC3S Maintenance Schedule (1986-1991)
1986-1991 Mazda RX-7 FC3S — Complete Factory Specification
Mazda 13B-REW: The Twin-Rotor Turbo That Defied Convention
The 13B-REW is not a piston engine. It's a **Wankel rotary** — two triangular rotors spinning inside epitrochoid-shaped housings, with no reciprocating mass, no valves, no camshafts. Invented by Felix Wankel in the 1950s, perfected by Mazda across three decades of obsession, the
Mazda RX-7 FD3S (13B-REW) Complete Maintenance Schedule
Complete 1992-2002 Mazda RX-7 FD3S maintenance guide with service intervals, costs, parts lists, and common 13B-REW 1.3L Sequential Twin-Turbo Rotary issues.
1992-2002 Mazda RX-7 FD3S — Complete Factory Specifications
Complete technical specifications for the legendary Mazda RX-7 FD3S. Detailed 13B-REW rotary engine, sequential twin-turbo, RWD drivetrain, chassis, dimensions, performance, and capacity data.