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The Subaru WRX and Mitsubishi Lancer Evolution (Evo) are two iconic vehicles in the world of performance cars. Both have garnered a loyal following due to their rally heritage, performance capabilities, and tuning potential. When it comes to building these cars for high horsepower applications, particularly in the realm of 600+ horsepower, understanding engine internals and strength is crucial. This article will delve into the key aspects of strengthening both the WRX and Evo to achieve these ambitious power goals.
Understanding Engine Internals
Engine internals play a vital role in the overall performance and durability of a vehicle. When tuning for high horsepower, it is essential to consider the following components:
- Pistons: The choice of pistons is critical for high boost applications.
- Connecting Rods: Stronger rods are necessary to handle increased power and RPM.
- Cylinder Heads: Upgrading heads can improve airflow and performance.
- Crankshafts: A forged crankshaft can withstand higher stress levels.
Strengthening the WRX for 600+ HP
The Subaru WRX has a strong aftermarket support, making it a popular choice for tuners. To prepare a WRX for 600+ horsepower, consider the following upgrades:
- Piston Upgrade: Use forged pistons to increase strength and reduce the risk of failure.
- Connecting Rods: Upgrade to forged rods to handle the increased power.
- Turbocharger: A larger turbo is essential for achieving the desired horsepower levels.
- ECU Tuning: A proper tune is necessary to optimize the engine’s performance.
- Intercooler Upgrade: A more efficient intercooler helps reduce intake temperatures.
Piston and Rod Considerations
In the WRX, the stock pistons and connecting rods may not withstand the pressures of 600+ horsepower. Upgrading to high-performance forged components is essential. This not only increases strength but also allows for better thermal management and reduced weight.
Turbo and Tuning
Boosting the WRX’s power output requires a significant upgrade to the turbocharger. A larger turbo can provide the necessary airflow to reach 600+ horsepower. Additionally, proper ECU tuning is crucial to ensure that the engine runs efficiently and safely under increased boost levels.
Strengthening the Evo for 600+ HP
The Mitsubishi Lancer Evolution is known for its robust engine design, but achieving 600+ horsepower still requires careful consideration of engine internals. Here are key upgrades for the Evo:
- Forged Pistons: Similar to the WRX, forged pistons are a must for the Evo.
- Heavy-Duty Connecting Rods: Upgrading rods is critical for handling additional power.
- Turbocharger Upgrade: A larger turbo will be necessary for high horsepower goals.
- Fuel System Upgrade: Ensure the fuel system can handle the increased demand.
- Engine Management: A standalone ECU can provide better control over engine parameters.
Piston and Rod Upgrades
For the Evo, upgrading to forged pistons and connecting rods is essential for supporting high horsepower builds. This not only increases durability but also enhances the engine’s ability to handle higher RPMs and boost levels.
Fuel System and Tuning
As power increases, so does the demand for fuel. Upgrading the fuel system, including injectors and fuel pumps, is crucial to ensure that the engine receives adequate fuel. Additionally, tuning the engine management system is vital for optimizing performance and reliability.
Comparative Analysis: WRX vs. Evo
Both the Subaru WRX and Mitsubishi Evo have their unique strengths and weaknesses when it comes to building for high horsepower. Here’s a comparative analysis:
- Aftermarket Support: Both vehicles have extensive aftermarket support, but the WRX tends to have a wider variety of options.
- Engine Design: The Evo’s 4G63 and 4B11 engines are known for their strength, while the WRX’s EJ series engines are also capable but may require more extensive modifications.
- Weight Distribution: The WRX generally has a more favorable weight distribution, which can enhance handling.
- Cost of Upgrades: Depending on the specific build, the cost of upgrades can vary significantly between the two.
Conclusion
Both the Subaru WRX and Mitsubishi Lancer Evolution are excellent platforms for building high horsepower engines. By understanding the necessary engine internals and making the right upgrades, enthusiasts can successfully achieve 600+ horsepower. Whether you choose the WRX or the Evo, careful planning and quality components are essential for a successful build.