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The RX-7 is a beloved sports car known for its lightweight design and agile handling. When swapping in an LS engine, enthusiasts aim to maximize performance while maintaining the car’s unique characteristics. Here are the top supporting mods that can help you achieve the best performance from your RX-7 LS swap.
1. High-Performance Fuel System
A high-performance fuel system is crucial for ensuring your LS engine receives the right amount of fuel for optimal performance. Upgrading your fuel pump and injectors can significantly enhance power output.
- Upgraded fuel pump to support higher flow rates.
- High-flow fuel injectors for better atomization.
- Fuel pressure regulator for consistent fuel delivery.
2. Enhanced Cooling System
Swapping in an LS engine can generate more heat than the stock rotary engine. An enhanced cooling system is essential to prevent overheating and maintain performance.
- Upgraded aluminum radiator for better heat dissipation.
- High-performance electric fans to improve airflow.
- Oil cooler to regulate engine oil temperatures.
3. Exhaust System Upgrades
A quality exhaust system can improve exhaust flow, reduce back pressure, and enhance the sound of your LS engine. Consider these upgrades for optimal performance.
- Long tube headers for better exhaust flow.
- High-flow catalytic converters to reduce restriction.
- Performance cat-back exhaust system for improved sound and flow.
4. Engine Management System
An advanced engine management system is vital for tuning your LS engine to maximize performance. This allows for adjustments to fuel maps, ignition timing, and more.
- Standalone ECU for complete control over engine parameters.
- Wideband O2 sensors for accurate air-fuel ratio readings.
- Tuning software for custom performance maps.
5. Suspension Upgrades
With the added power of the LS engine, upgrading the suspension is crucial for handling and stability. These modifications can enhance your driving experience.
- Coilover suspension kits for adjustable ride height and stiffness.
- Upgraded sway bars to reduce body roll.
- Performance bushings for improved responsiveness.
6. Lightweight Wheels and Tires
Reducing unsprung weight is essential for improving handling and acceleration. Lightweight wheels paired with high-performance tires can make a significant difference.
- Forged or lightweight alloy wheels for reduced weight.
- High-performance tires for better grip and traction.
- Proper wheel alignment to optimize handling characteristics.
7. Brake System Enhancements
With increased power comes the need for enhanced stopping power. Upgrading your brake system is critical for safety and performance.
- Upgraded brake calipers for better clamping force.
- Larger diameter rotors for improved heat dissipation.
- Performance brake pads for better bite and fade resistance.
8. Weight Reduction
Reducing the overall weight of your RX-7 can significantly improve performance. Consider the following methods for weight reduction.
- Remove unnecessary interior components.
- Replace heavy factory parts with lightweight alternatives.
- Consider a lightweight battery for further weight savings.
9. Final Thoughts
Maximizing the performance of your RX-7 LS swap requires a holistic approach that includes upgrades to the fuel system, cooling, exhaust, engine management, suspension, wheels, brakes, and weight reduction. By implementing these supporting mods, you can create a well-rounded and high-performing vehicle that retains the spirit of the RX-7 while benefiting from the power of an LS engine.