Table of Contents
The RX-7 is a beloved sports car known for its lightweight design and exceptional handling. When it comes to performance upgrades, the LS swap has become a popular choice among enthusiasts looking to boost power and reliability. However, many owners are on a budget and seek cost-effective solutions. This article explores various performance upgrades for RX-7 LS swaps, focusing on headers, ECU tuning, and more.
Understanding the LS Swap
The LS engine swap involves replacing the RX-7’s original engine with a General Motors LS engine. This swap is favored for its power potential, availability, and aftermarket support. However, maximizing the performance of an LS-swapped RX-7 requires strategic upgrades.
Cost-Effective Performance Upgrades
1. Headers
Upgrading to aftermarket headers is one of the most effective ways to improve exhaust flow and increase horsepower. Stock headers can restrict performance, while aftermarket options enhance both power and sound.
- Consider long-tube headers for maximum performance gains.
- Shorty headers can be a good alternative if space is a concern.
- Look for headers made from stainless steel for durability.
2. Cold Air Intake
A cold air intake system can significantly improve engine performance by allowing cooler, denser air to enter the engine. This upgrade is relatively inexpensive and easy to install.
- Choose a system designed specifically for the LS engine.
- Ensure proper fitment to avoid any installation issues.
- Regularly clean or replace the filter to maintain airflow.
3. ECU Tuning
ECU tuning is essential for optimizing performance after any upgrades. A proper tune adjusts fuel maps, timing, and other parameters to maximize efficiency and power.
- Consider using a reputable tuner familiar with LS swaps.
- Look for tuning options that allow for future upgrades.
- Utilize software that supports real-time data logging for adjustments.
4. Exhaust System
An aftermarket exhaust system not only enhances performance but also improves the sound of your RX-7. A less restrictive system can help the engine breathe better, leading to increased horsepower.
- Consider cat-back systems for a straightforward installation.
- Look for systems that offer a balance between sound and performance.
- Stainless steel options provide longevity and resistance to corrosion.
5. Lightweight Flywheel
Replacing the stock flywheel with a lightweight option can improve throttle response and reduce rotational mass. This upgrade can lead to quicker acceleration, making it a worthwhile investment.
- Choose a flywheel that matches your driving style.
- Consider a dual-mass flywheel for smoother operation.
- Ensure proper installation to avoid any drivetrain issues.
6. Suspension Upgrades
While not directly related to engine performance, suspension upgrades are crucial for handling the increased power of an LS-swapped RX-7. Improved suspension can enhance stability and cornering ability.
- Consider coilover kits for adjustable ride height and stiffness.
- Upgrading sway bars can reduce body roll during cornering.
- Replace worn bushings for better responsiveness.
Conclusion
Upgrading an RX-7 with an LS engine swap can be a rewarding experience, especially when focusing on cost-effective performance enhancements. From headers to ECU tuning, each upgrade plays a role in maximizing the vehicle’s potential. By carefully selecting upgrades that fit within your budget, you can enjoy a powerful and reliable RX-7 that stands out on the road or track.