Sackboy_AC :
The Mazda RX-7’s rotary engine, known as the Wankel engine, was a compact, lightweight, and high-revving powerplant that defined the car’s identity from 1978 to 2002. Unlike conventional piston engines, it used triangular rotors spinning inside an oval housing to complete the four combustion strokes, allowing for smooth power delivery and a high redline but with trade-offs like poor fuel efficiency, higher emissions, and apex seal wear. Across its three generations, the RX-7 featured several rotary variants: the first generation (SA/FB) used the 12A and 13B engines producing around 100–135 hp, the second generation (FC) introduced fuel injection and the 13B-T Turbo II reaching up to 200 hp, and the third generation (FD) used the advanced twin-turbocharged 13B-REW, producing 255–276 hp and offering exceptional performance and balance. The RX-7’s rotary engine became legendary for its smoothness, unique sound, and tuning potential, though it demanded meticulous maintenance and was often criticized for reliability issues. Despite its quirks, it remains one of the most iconic and innovative engines in automotive history.
2025-10-07 20:35:41