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The Mazda RX-7 is renowned for its lightweight design and rotary engine, particularly the 13B-REW variant. To enhance its performance, enthusiasts often look to aftermarket modifications from reputable brands like Mazda Speed, Cobb, and HKS. This article explores the best performance mods for the 13B-REW engine, focusing on what will yield the most power.
Understanding the 13B-REW Engine
The 13B-REW engine is a twin-rotor rotary engine that offers a unique combination of power and efficiency. Its compact design allows for a lower center of gravity, contributing to improved handling. However, to unlock its full potential, modifications are often necessary.
Top Performance Mods
Here are the best performance modifications for the 13B-REW engine from Mazda Speed, Cobb, and HKS that can significantly boost power output.
- Cold Air Intake – Improves airflow to the engine, enhancing combustion efficiency.
- Upgraded Turbocharger – Increases boost pressure, resulting in more power.
- Exhaust System Upgrade – Reduces back pressure and improves exhaust flow.
- ECU Tune – Optimizes engine parameters for maximum performance.
- Intercooler Upgrade – Lowers intake air temperatures, improving performance and reliability.
- High-Performance Fuel Injectors – Ensures adequate fuel delivery for increased power levels.
- Lightweight Flywheel – Reduces rotational mass, improving throttle response.
- Upgraded Ignition System – Enhances spark efficiency for better combustion.
- Performance Clutch – Handles increased power and torque without slippage.
- Suspension Upgrades – Improves handling and stability under increased power.
- Brake System Upgrade – Ensures adequate stopping power for enhanced performance.
- Performance Oil Cooler – Maintains optimal engine temperatures under high load.
- Weight Reduction – Enhances power-to-weight ratio, improving overall performance.
Mazda Speed Modifications
Mazda Speed offers a range of performance parts specifically designed for the RX-7. Their products are engineered to work seamlessly with the 13B-REW engine, ensuring reliability and performance.
- Mazda Speed Cold Air Intake – Increases airflow and engine responsiveness.
- Mazda Speed Exhaust System – Designed for optimal flow and sound quality.
- Mazda Speed ECU Reflash – Tailored tuning for enhanced performance.
Cobb Tuning Options
Cobb is well-known for its tuning solutions that can drastically improve the performance of the RX-7. Their products focus on maximizing the potential of the 13B-REW engine.
- Cobb Accessport – A powerful tuning tool that allows for custom maps and adjustments.
- Cobb Turbo Upgrade – Provides significant boosts in power and performance.
- Cobb Intercooler Kit – Improves cooling efficiency for sustained power delivery.
HKS Performance Parts
HKS is another leading brand in the performance parts industry, offering a variety of components to enhance the RX-7’s capabilities. Their focus on quality ensures that modifications are both effective and durable.
- HKS Super Sequential Blow Off Valve – Reduces turbo lag and enhances throttle response.
- HKS Exhaust Manifold – Improves exhaust flow and turbo efficiency.
- HKS Coilovers – Provides adjustable suspension for improved handling.
Choosing the Right Modifications
When selecting performance modifications for the 13B-REW engine, it’s essential to consider your goals, budget, and the intended use of the vehicle. Here are some factors to keep in mind:
- Purpose – Determine whether you want a daily driver, a track car, or a show vehicle.
- Budget – Set a realistic budget for modifications and installation.
- Reliability – Consider how each modification may affect the engine’s longevity.
- Compatibility – Ensure that all parts work well together without causing issues.
Conclusion
Upgrading the Mazda RX-7’s 13B-REW engine with performance parts from Mazda Speed, Cobb, and HKS can lead to significant power gains. By carefully selecting modifications based on your goals and ensuring compatibility, you can create a vehicle that is not only powerful but also reliable. Whether you are a seasoned enthusiast or a newcomer, these modifications will help you unlock the full potential of the RX-7.