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The Mitsubishi Lancer Evolution, commonly known as the Evo, has garnered a reputation for its performance and tuning potential. One of the key components that can significantly enhance the Evo’s power output is the intercooler. Upgrading from the stock intercooler to a high-performance unit can lead to impressive horsepower gains, often exceeding 100 HP. In this article, we will explore the benefits of intercooler upgrades, the types available, and the installation process.
Understanding Intercoolers
An intercooler is a heat exchanger used to cool the air that has been compressed by the turbocharger before it enters the engine. Cooler air is denser, allowing for more oxygen to be packed into the combustion chamber, which translates to more power. The stock intercooler on the Evo, while functional, often becomes a bottleneck as power levels increase.
Benefits of Upgrading Your Intercooler
- Improved Cooling Efficiency: Aftermarket intercoolers typically have larger cores and better airflow, leading to lower intake temperatures.
- Increased Power Output: With better cooling, your engine can run more efficiently, allowing for higher boost levels and significant horsepower gains.
- Enhanced Reliability: A high-performance intercooler can help prevent heat soak during extended driving or racing, ensuring consistent performance.
- Better Throttle Response: Cooler, denser air improves throttle response, making the car feel more responsive during acceleration.
Types of Intercoolers for the Evo
When considering an intercooler upgrade for your Evo, you have several options:
- Front-Mount Intercoolers (FMIC): These are the most popular choice for high-performance applications. They are mounted in front of the radiator, providing maximum airflow and cooling efficiency.
- Top-Mount Intercoolers (TMIC): These are located on top of the engine and are easier to install. However, they may not provide the same cooling efficiency as FMICs.
- Water-to-Air Intercoolers: These systems use water to cool the intake air. They are effective but can be more complex and costly to install.
Choosing the Right Intercooler
Selecting the right intercooler depends on your specific goals and setup. Consider the following factors:
- Power Goals: If you’re aiming for significant horsepower gains, a larger FMIC is usually the best choice.
- Driving Style: For daily drivers, a TMIC may suffice, while racers might prefer FMICs for maximum performance.
- Budget: Intercooler prices can vary widely, so choose one that fits your budget while still meeting your performance needs.
Installation Process
Installing an aftermarket intercooler can be a rewarding project for DIY enthusiasts. Here’s a general overview of the installation process:
- Gather Tools and Materials: You’ll need basic hand tools, a new intercooler, piping, and potentially new couplers and clamps.
- Remove the Stock Intercooler: Disconnect the piping and remove the stock intercooler from the vehicle.
- Install the New Intercooler: Position the new intercooler in place and connect the piping. Ensure all connections are secure.
- Test for Leaks: After installation, start the engine and check for any air leaks in the system.
Potential Gains from Upgrading
The gains from upgrading your intercooler can be substantial. Many Evo owners report increases of over 100 HP after upgrading, especially when combined with other performance modifications such as a tune, exhaust system, and upgraded turbocharger. The exact gains will depend on your specific setup and tuning.
Conclusion
Upgrading the intercooler on your Mitsubishi Lancer Evolution is one of the most effective ways to unlock additional horsepower and enhance overall performance. With a variety of options available, it’s essential to choose the right intercooler that fits your performance goals and driving style. Whether you opt for a front-mount or top-mount solution, the benefits of improved cooling and increased power will undoubtedly elevate your driving experience.