High-flow Fuel Pumps for Evo 9: Necessary for 400+ Hp Builds

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The Mitsubishi Lancer Evolution IX, commonly referred to as the Evo 9, is a high-performance vehicle known for its turbocharged engine and all-wheel-drive capabilities. For enthusiasts looking to push their Evo 9 beyond the 400 horsepower mark, upgrading the fuel system is essential. One of the most critical components in achieving this power level is a high-flow fuel pump.

Why Upgrade to a High-Flow Fuel Pump?

As power levels increase, the demand for fuel also rises. A stock fuel pump may not be able to provide the necessary fuel volume and pressure needed for high-performance builds. Upgrading to a high-flow fuel pump ensures that your engine receives the adequate fuel supply, which is crucial for optimal performance and reliability.

Benefits of High-Flow Fuel Pumps

  • Increased Fuel Delivery: High-flow fuel pumps can deliver more fuel per minute, accommodating higher horsepower demands.
  • Improved Engine Performance: Ensures your engine runs efficiently by maintaining the correct air-fuel ratio.
  • Enhanced Reliability: Reduces the risk of fuel starvation, especially during high-load conditions.
  • Compatibility with Upgrades: Supports additional modifications such as larger injectors and upgraded turbochargers.

Choosing the Right High-Flow Fuel Pump

When selecting a high-flow fuel pump for your Evo 9, consider the following factors:

  • Fuel Pump Type: Choose between in-tank or external pumps based on your setup and preferences.
  • Flow Rate: Look for pumps that can deliver at least 255 LPH (liters per hour) to support 400+ HP builds.
  • Pressure Rating: Ensure the pump can maintain the necessary pressure for your specific application.
  • Brand Reputation: Opt for reputable brands known for quality and performance in the tuning community.
  • Walbro 255 LPH: A popular choice among Evo enthusiasts, known for its reliability and performance.
  • DeatschWerks DW300: Offers high flow rates and is compatible with E85 fuel, making it a versatile option.
  • Fuelab 41401: Designed for high-performance applications, providing excellent flow and pressure stability.
  • AEM 50-1000: A high-performance pump that supports a wide range of applications and fuel types.

Installation Tips

Installing a high-flow fuel pump in your Evo 9 requires some mechanical knowledge. Here are some tips to ensure a successful installation:

  • Read Instructions: Always follow the manufacturer’s instructions for installation to avoid any issues.
  • Safety First: Disconnect the battery and relieve fuel system pressure before starting the installation.
  • Check for Leaks: After installation, check all connections for leaks before starting the engine.
  • Use Quality Components: Consider replacing the fuel filter and using high-quality fuel lines for optimal performance.

Conclusion

Upgrading to a high-flow fuel pump is a crucial step for any Evo 9 owner looking to achieve 400+ horsepower. With the right pump, you can ensure that your vehicle performs at its best while maintaining reliability. Remember to choose a pump that meets your specific needs and follow proper installation procedures for the best results.