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The Mitsubishi Eclipse has been a favorite among car enthusiasts for years, known for its tunability and performance potential. In this article, we will explore the dyno results of a 2G Eclipse that underwent a 3G Eclipse 6-bolt head swap, achieving impressive power levels exceeding 300 horsepower.
Understanding the 2G and 3G Eclipse Models
The 2G Eclipse, produced from 1995 to 1999, is renowned for its lightweight and agile chassis, making it an excellent platform for modifications. The 3G Eclipse, on the other hand, debuted in 2000 and featured several advancements in technology and performance. One popular modification among enthusiasts is the head swap from the 3G Eclipse, which utilizes a 6-bolt head for improved airflow and power potential.
The Benefits of a 6-Bolt Head Swap
Swapping the 2G Eclipse’s head for a 3G 6-bolt head can provide several benefits:
- Improved Airflow: The 6-bolt head features larger intake and exhaust ports, allowing for better airflow and combustion efficiency.
- Increased Power Potential: With better airflow, the engine can produce more power, making it easier to reach and exceed the 300 hp mark.
- Compatibility with Upgrades: The 6-bolt head is compatible with various aftermarket upgrades, further enhancing performance capabilities.
Preparing for the Dyno Test
Before heading to the dyno, several modifications were made to ensure optimal performance:
- ECU Tuning: The engine’s ECU was tuned to accommodate the new head and any supporting modifications.
- Upgraded Turbocharger: A larger turbocharger was installed to increase boost levels and overall power output.
- High-Performance Fuel System: Upgraded injectors and a high-flow fuel pump were added to support increased fuel demands.
Dyno Results Overview
After completing the modifications and tuning, the 2G Eclipse was put on the dyno for testing. The results were impressive:
- Peak Horsepower: The car achieved a peak horsepower of 320 hp at 7,500 RPM.
- Peak Torque: Torque peaked at 290 lb-ft at 4,500 RPM.
- Boost Levels: The setup was running at 22 psi of boost pressure.
Factors Influencing Dyno Performance
Several factors can influence the dyno performance of a modified vehicle:
- Weather Conditions: Temperature, humidity, and air pressure can impact engine performance during testing.
- Dyno Type: Different types of dynos (e.g., inertia vs. load) can yield varying results.
- Driver Skill: The ability to launch and shift effectively can affect the overall performance on the dyno.
Conclusion
The dyno results of the 2G Eclipse with a 3G Eclipse 6-bolt head swap demonstrate the significant power potential achievable through thoughtful modifications. With peak horsepower exceeding 300 hp, this setup is a testament to the capabilities of the Mitsubishi Eclipse platform. Whether for daily driving or competitive racing, such modifications can provide exhilarating performance and driving experience.