Table of Contents
The Mitsubishi Lancer Evolution IX, or Evo 9, is a beloved model among car enthusiasts, known for its exceptional performance and handling. Recently, I undertook a project to increase the horsepower of my Evo 9 by 50 HP. This article details the transformation in track performance that resulted from this modification.
The Initial Setup
Before the modifications, my Evo 9 was equipped with a stock 2.0-liter turbocharged inline-4 engine producing around 276 HP. While this was impressive, I aimed for more power to enhance my track experience. I started by assessing the existing components and planning the upgrades needed to achieve the desired horsepower increase.
Upgrades Implemented
To achieve the 50 HP increase, I focused on several key modifications:
- High-Performance Turbocharger: Upgraded to a larger turbo to improve air intake and boost pressure.
- ECU Remapping: Reprogrammed the engine control unit to optimize fuel delivery and ignition timing.
- High-Flow Exhaust System: Installed a cat-back exhaust to reduce back pressure and improve exhaust flow.
- Cold Air Intake: Added a high-performance intake system to increase airflow to the engine.
- Intercooler Upgrade: Replaced the stock intercooler with a larger unit to reduce intake temperatures.
Track Testing Before and After
After completing the upgrades, it was time to test the Evo 9 on the track. I conducted several runs to compare the performance before and after the modifications.
Before Upgrades
During the initial track sessions, the Evo 9 demonstrated solid handling and acceleration. My best lap time was approximately 1:35.5, with a top speed of 125 mph on the straight. However, I noticed that the power delivery felt somewhat limited, especially during mid-range acceleration.
After Upgrades
Post-modifications, the difference was immediately noticeable. The Evo 9 now produced a staggering 326 HP. My best lap time improved significantly to 1:32.0, and I achieved a top speed of 130 mph. The increased power allowed for quicker acceleration out of corners and better overall track performance.
Handling Improvements
In addition to the horsepower increase, I made some adjustments to the suspension to accommodate the newfound power. These changes included:
- Upgraded Coilovers: Installed adjustable coilovers for improved handling and ride quality.
- Anti-Roll Bars: Added stiffer anti-roll bars to reduce body roll during cornering.
- Tire Upgrade: Switched to high-performance tires for better grip and traction.
These enhancements contributed to a more stable and responsive driving experience on the track, allowing me to push the Evo 9 to its limits with confidence.
Conclusion
The transformation of my Evo 9 with a 50 HP increase has significantly enhanced its track performance. The combination of power upgrades and suspension modifications resulted in faster lap times and improved handling. Whether you’re a seasoned track driver or a weekend enthusiast, investing in performance upgrades can lead to a thrilling driving experience.
For anyone considering similar modifications, careful planning and quality components are essential for achieving the best results. The journey of enhancing my Evo 9 has been rewarding, and I look forward to many more exciting track days ahead.