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The Mazda FD RX-7 is a legendary sports car known for its lightweight design and rotary engine. Enthusiasts often seek ways to enhance its performance, and one popular modification is the BorgWarner turbo upgrade. This article delves into the real-world results of achieving 350 rear-wheel horsepower (RWHP) with this upgrade.
Understanding the Mazda FD RX-7
The Mazda RX-7, particularly the FD generation produced between 1992 and 2002, is celebrated for its unique rotary engine and balanced handling. It features a lightweight chassis and a near-perfect weight distribution, making it a favorite among car enthusiasts and tuners.
The Importance of Turbocharging
Turbocharging is a method of forced induction that increases an engine’s efficiency and power output. For the RX-7, upgrading to a BorgWarner turbo can significantly enhance performance, allowing the rotary engine to produce more power without compromising reliability.
Benefits of the BorgWarner Turbo
The BorgWarner turbocharger is known for its efficiency and responsiveness. Key benefits include:
- Increased Power: The turbo allows the engine to produce higher horsepower and torque.
- Improved Throttle Response: The design minimizes lag, providing a more immediate power delivery.
- Enhanced Fuel Efficiency: A well-tuned turbo can improve fuel economy while increasing power.
Achieving 350 RWHP: The Process
Reaching 350 RWHP in a Mazda FD RX-7 requires a combination of the right components, tuning, and expertise. Below is a step-by-step breakdown of the process.
1. Choosing the Right Turbo
The first step is selecting the appropriate BorgWarner turbo model. Common choices for the RX-7 include the BorgWarner S200 series, known for their ability to support high horsepower levels while maintaining good spool characteristics.
2. Upgrading Supporting Components
To achieve 350 RWHP, several supporting modifications are necessary:
- Fuel System: Upgrading fuel injectors and the fuel pump ensures adequate fuel delivery.
- Intercooler: A larger intercooler helps reduce intake temperatures, improving performance.
- Exhaust System: A high-flow exhaust system minimizes back pressure and enhances turbo efficiency.
3. Engine Management and Tuning
Proper tuning is critical to maximizing performance and ensuring reliability. A standalone engine management system allows for precise control over fuel maps, ignition timing, and boost levels. Professional tuning on a dynamometer is recommended to achieve optimal results.
Real-World Results
After completing the upgrades and tuning, many RX-7 owners report impressive results. Achieving 350 RWHP is not uncommon with the right setup. The following are key performance metrics observed:
- Peak Horsepower: 350 RWHP at approximately 7,500 RPM.
- Peak Torque: 300 lb-ft at around 5,500 RPM.
- 0-60 mph: Achieved in under 4 seconds.
Conclusion
The Mazda FD RX-7, when equipped with a BorgWarner turbo upgrade, can achieve remarkable performance figures, including 350 RWHP. With the right components and expert tuning, enthusiasts can unlock the full potential of this iconic sports car, making it a thrilling and rewarding driving experience.