How Much Power Can You Expect from an Evo Turbo Upgrade? Benchmarks with 18g and 20g Turbos

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Upgrading your Mitsubishi Lancer Evolution with a turbocharger is one of the most effective ways to enhance performance. However, it’s crucial to understand what kind of power gains you can realistically expect from different turbo sizes, specifically the 18G and 20G turbos. In this article, we will explore the performance benchmarks of these turbo upgrades, allowing you to make an informed decision.

Understanding Turbocharger Basics

Before diving into the specific benchmarks, it’s important to grasp how turbochargers work. A turbocharger utilizes exhaust gases to spin a turbine that compresses air, allowing more air and fuel into the engine. This results in increased power output. The size of the turbo plays a significant role in how much power you can expect.

Power Gains from 18G Turbo Upgrade

The 18G turbo is a popular choice among EVO enthusiasts. It offers a good balance between power and drivability. On a stock EVO, the 18G turbo can provide significant power improvements.

Expected Power Output

With the right supporting modifications, an 18G turbo can yield power figures in the range of:

  • Approximately 300-350 horsepower at the wheels.
  • Torque output can reach up to 350 lb-ft.

Supporting Modifications

To achieve the best performance from an 18G turbo, consider the following modifications:

  • Upgraded fuel injectors.
  • High-flow fuel pump.
  • Aftermarket intercooler.
  • ECU tuning to optimize performance.

Power Gains from 20G Turbo Upgrade

The 20G turbo is typically seen as a more aggressive upgrade, suitable for those looking for maximum performance. It can push the limits of power output significantly compared to the 18G.

Expected Power Output

With the appropriate modifications, a 20G turbo can produce:

  • Approximately 350-400 horsepower at the wheels.
  • Torque figures can reach up to 400 lb-ft.

Supporting Modifications

To maximize the potential of a 20G turbo, consider these upgrades:

  • Upgraded fuel system (injectors and pump).
  • Enhanced intercooling system.
  • Performance exhaust system.
  • Comprehensive ECU tuning.

Comparative Analysis: 18G vs 20G Turbo

When choosing between the 18G and 20G turbo, it’s essential to consider the differences in power delivery and overall performance.

Performance Characteristics

The performance characteristics can be summarized as follows:

  • 18G Turbo: Better for daily driving, quicker spool time, and a more linear power delivery.
  • 20G Turbo: Higher peak power, but may have a slower spool time and require more extensive modifications.

Conclusion

Upgrading to an 18G or 20G turbo can significantly enhance your EVO’s performance, but the choice depends on your power goals and intended use. The 18G offers a more balanced approach, while the 20G pushes the limits for those seeking maximum horsepower. Always ensure that you have the necessary supporting modifications to achieve the best results from your turbo upgrade.