Real-world Results: 30 Hp Gains from a $200 Turbo Upgrade on a Subaru Wrx

by

The Subaru WRX is a popular choice among car enthusiasts, known for its performance and tuning potential. One of the most effective upgrades for increasing horsepower is the turbocharger. In this article, we will explore a real-world case study of a $200 turbo upgrade that resulted in an impressive 30 horsepower gain.

Understanding Turbochargers

A turbocharger is a device that forces more air into the engine’s combustion chamber, allowing for more fuel to be burned and ultimately increasing power. The Subaru WRX is already equipped with a factory turbo, but aftermarket options can significantly enhance performance.

The Upgrade Process

The specific upgrade discussed in this article involves replacing the factory turbo with a more efficient aftermarket model. This upgrade not only improves airflow but also enhances throttle response. Below are the steps taken during the upgrade process:

  • Research and select a compatible turbocharger.
  • Gather necessary tools and materials.
  • Remove the factory turbocharger.
  • Install the new turbocharger.
  • Reassemble engine components and check for leaks.
  • Test drive and monitor performance.

Performance Gains

After the installation of the new turbocharger, the Subaru WRX was taken to a dynamometer for testing. The results were impressive, showcasing a significant increase in horsepower:

  • Before upgrade: 250 horsepower.
  • After upgrade: 280 horsepower.
  • Total gain: 30 horsepower.

Cost-Effectiveness of the Upgrade

With a total investment of only $200 for the turbocharger, the cost-to-benefit ratio is outstanding. Many performance upgrades can cost thousands of dollars, making this an attractive option for budget-conscious enthusiasts.

Additional Considerations

While the horsepower gains are impressive, there are some additional factors to consider when upgrading the turbocharger:

  • Engine tuning may be necessary to optimize performance.
  • Upgraded fuel injectors may be required to handle increased fuel demand.
  • Potential impact on engine longevity and reliability.

Conclusion

The case study of a $200 turbo upgrade on a Subaru WRX demonstrates that significant performance gains are achievable without breaking the bank. With the right research and preparation, enthusiasts can enjoy enhanced driving experiences and increased horsepower.

Further Reading