The Cost of Big Power: Building a 400-hp Evo 8 with Forged Internals and Upgraded Fuel System

The Mitsubishi Lancer Evolution VIII, commonly known as the Evo 8, is a legendary vehicle in the world of performance cars. With its turbocharged engine and all-wheel drive, it has captured the hearts of car enthusiasts and racers alike. In this article, we will discuss the costs associated with building a 400-hp Evo 8, focusing on forged internals and an upgraded fuel system.

Understanding the Basics of the Evo 8

The Evo 8 is powered by a 2.0-liter inline-four engine, known as the 4G63. This engine is well-regarded for its tuning potential, making it a popular choice for those looking to increase horsepower. However, achieving 400 hp requires careful planning and the right modifications.

Key Components for Achieving 400 HP

  • Forged Internals
  • Upgraded Fuel System
  • Turbocharger Upgrade
  • ECU Tuning
  • Exhaust System

Forged Internals

One of the first steps to building a reliable 400-hp Evo 8 is upgrading to forged internals. This includes forged pistons, connecting rods, and a balanced crankshaft. These components are designed to withstand higher power levels and reduce the risk of engine failure.

Cost of Forged Internals

The cost of forged internals can vary significantly based on brand and quality. On average, you can expect to spend between $1,500 and $3,000 for a complete set of forged internals. This investment is crucial for ensuring the engine can handle the increased power.

Upgraded Fuel System

To support the increased horsepower, an upgraded fuel system is essential. This includes a higher flow fuel pump, larger fuel injectors, and possibly a fuel pressure regulator. These components ensure that the engine receives the proper amount of fuel, which is vital for performance.

Cost of Upgraded Fuel System

The cost of an upgraded fuel system can range from $500 to $1,500, depending on the components chosen. Investing in quality parts will help maintain fuel efficiency and performance.

Additional Modifications for Performance

In addition to forged internals and an upgraded fuel system, several other modifications are necessary to reach the 400-hp goal. These include upgrading the turbocharger, tuning the ECU, and enhancing the exhaust system.

Turbocharger Upgrade

Upgrading the turbocharger is crucial for increasing horsepower. A larger turbo can provide more airflow, resulting in greater power output. Popular options for the Evo 8 include the FP Black and the GTX3071R.

Cost of Turbocharger Upgrade

The cost of a turbocharger upgrade can range from $1,000 to $2,500, depending on the brand and specifications. This is a significant investment but essential for achieving the desired horsepower.

ECU Tuning

After making hardware modifications, ECU tuning is necessary to optimize performance. This involves adjusting fuel maps, ignition timing, and boost levels to ensure the engine runs efficiently and safely.

Cost of ECU Tuning

ECU tuning can cost between $300 and $1,000, depending on whether you choose a standalone system or a reflash of the stock ECU. A proper tune is vital to maximize performance and reliability.

Exhaust System Upgrade

An upgraded exhaust system can enhance airflow and reduce back pressure, contributing to improved performance. Options include high-flow downpipes and cat-back exhaust systems.

Cost of Exhaust System Upgrade

Expect to spend between $500 and $1,500 on an upgraded exhaust system. Quality components will improve sound and performance, making this a worthwhile investment.

Calculating the Total Cost

When building a 400-hp Evo 8, it’s essential to consider all costs associated with the project. Below is a breakdown of potential expenses:

  • Forged Internals: $1,500 – $3,000
  • Upgraded Fuel System: $500 – $1,500
  • Turbocharger Upgrade: $1,000 – $2,500
  • ECU Tuning: $300 – $1,000
  • Exhaust System: $500 – $1,500

In total, you can expect to spend between $4,800 and $9,500 for a complete build aimed at achieving 400 hp. This range can vary based on personal preferences and additional modifications.

Conclusion

Building a 400-hp Evo 8 requires careful planning and investment in quality parts. By focusing on forged internals and an upgraded fuel system, along with other essential modifications, you can create a powerful and reliable performance vehicle. While the costs may seem daunting, the rewards of driving a well-tuned Evo 8 make it all worthwhile.