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The 1G Eclipse, produced by Mitsubishi and sold in the United States under the Eagle and Plymouth brands, has garnered a reputation in the tuning community for its potential to achieve impressive horsepower figures. In this article, we will explore how a Stage 3 1G Eclipse achieved a remarkable 350 horsepower through custom tuning.
Understanding the 1G Eclipse
The 1G Eclipse, produced from 1990 to 1994, is part of a series of compact cars that became popular among enthusiasts for their lightweight chassis and turbocharged engines. The vehicle’s turbocharged inline-four engine, particularly the 4G63, is known for its tuning potential.
Stage 3 Modifications
Achieving 350 hp in a Stage 3 setup involves several key modifications to the engine and supporting systems. Below are the primary components that contribute to reaching this power level:
- Upgraded Turbocharger: A larger turbocharger allows for increased airflow and boost pressure.
- High-Performance Fuel Injectors: Upgraded injectors ensure that the engine receives enough fuel to support higher horsepower.
- Aftermarket Fuel Pump: A high-flow fuel pump is essential for maintaining the necessary fuel pressure.
- Custom Engine Management System: A standalone ECU or advanced tuning software allows for precise tuning of fuel maps and ignition timing.
- Upgraded Intercooler: A larger intercooler helps to reduce intake temperatures, improving performance and reliability.
- Performance Exhaust System: An aftermarket exhaust system reduces back pressure and enhances exhaust flow.
The Tuning Process
Custom tuning is a critical step in unlocking the full potential of the modified 1G Eclipse. The tuning process typically involves the following steps:
- Dyno Testing: Initial runs on a dynamometer help establish baseline power figures and identify areas for improvement.
- Adjusting Fuel Maps: Tuning the fuel maps ensures that the engine receives the optimal air-fuel ratio for maximum power.
- Ignition Timing Optimization: Fine-tuning the ignition timing can significantly impact performance and prevent engine knock.
- Boost Control Settings: Adjusting the boost levels to find the sweet spot for power while maintaining reliability.
- Final Dyno Runs: After adjustments, final runs on the dyno confirm the achieved horsepower and torque figures.
Real-World Results
After completing the modifications and tuning process, the Stage 3 1G Eclipse achieved an impressive 350 horsepower at the wheels. This power level translates into exhilarating performance on the road and track, showcasing the potential of the 1G platform when combined with the right modifications.
Performance Metrics
To provide a clearer picture of the performance enhancements, here are some key metrics achieved by the tuned 1G Eclipse:
- 0-60 mph: Approximately 4.5 seconds
- Quarter Mile Time: Around 12.0 seconds
- Top Speed: Estimated at 150 mph
Conclusion
The journey to achieving 350 hp in a Stage 3 1G Eclipse demonstrates the power of custom tuning and the potential of this iconic platform. With the right modifications and tuning expertise, enthusiasts can unlock impressive performance figures, making the 1G Eclipse a formidable contender in the world of performance cars.