**Mazda RX-7: A Rotary Legend Reborn**
In the annals of automotive history, the Mazda RX-7 stands as an icon—a legendary sports car that captivated driving enthusiasts with its unique rotary engine and exceptional handling. From its humble beginnings in 1978 to its final iteration in 2002, the RX-7 left an enduring legacy on the automotive landscape.
**Revolutionary Rotary Heart**
The heart of the RX-7 lay in its groundbreaking Wankel rotary engine, a design that defied conventional piston engines. With its triangular rotors spinning within a combustion chamber, the rotary engine offered a number of advantages over its reciprocating counterparts.
* **Smoothness:** The absence of reciprocating masses eliminated vibrations, resulting in an incredibly smooth and refined power delivery.
* **Power:** The rotary's compact design allowed for a higher displacement-to-weight ratio, resulting in exceptional power output from a relatively small engine.
* **Efficiency:** Despite its high power density, the rotary engine maintained impressive fuel economy, thanks to its efficient combustion process.
**Dynamic Handling**
Complementing the rotary engine's performance was the RX-7's exceptional handling capabilities. Mazda's engineers meticulously crafted a chassis that balanced agility and stability.
* **50:50 Weight Distribution:** The front-mounted rotary engine and rear-wheel drive layout distributed weight evenly, ensuring optimal handling and responsiveness.
* **Double Wishbone Suspension:** Both the front and rear suspensions employed double wishbone configurations, providing excellent road holding and cornering ability.
* **Torsen Differential:** The optional Torsen differential in later models enhanced traction and handling, particularly in adverse conditions.
**Evolution of a Legend**
Over the course of three generations, the Mazda RX-7 underwent continuous evolution, each model refining the formula that made the car so beloved by driving enthusiasts.
**First Generation (1978-1985):** The original RX-7, known as the SA22C, featured a 1.1-liter rotary engine and a lightweight chassis. Its sleek lines and aggressive stance hinted at its performance potential.
**Second Generation (1986-1991):** The FC3S generation marked a significant leap forward, with a more powerful 1.3-liter rotary engine, improved handling, and a bolder exterior design. The introduction of the iconic "Sunburst" retractable headlamps added to the car's mystique.
**Third Generation (1992-2002):** The FD3S generation represented the pinnacle of the RX-7's evolution. Its 1.3-liter twin-turbocharged rotary engine produced up to 280 horsepower, making it one of the most potent sports cars of its era. The FD3S also featured advanced aerodynamics and a highly refined suspension.
**Conclusion:**
The Mazda RX-7 was more than just a sports car; it was a symbol of innovation, performance, and driving passion. Its unique rotary engine, exceptional handling, and iconic presence cemented its place as a true automotive legend.
Mazda RX 7 Service Manual 1980
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