Scion Fr-s Turbo Upgrade Guide: Adding 100 Hp for Under $2,000

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The Scion FR-S is a popular sports car known for its lightweight design and rear-wheel-drive layout. While it delivers an enjoyable driving experience, many enthusiasts seek to enhance its performance further. This guide will walk you through the steps to add 100 horsepower to your Scion FR-S with a turbo upgrade for under $2,000.

Understanding the Basics of Turbocharging

Turbocharging is a method of forced induction that increases an engine’s efficiency and power output. By compressing the intake air, a turbocharger allows more air and fuel to enter the combustion chamber, resulting in increased horsepower. Here are some key components to understand:

  • Turbocharger: The main component that forces air into the engine.
  • Intercooler: Cools the compressed air before it enters the engine.
  • Wastegate: Regulates the turbocharger’s boost pressure.
  • Fuel Management System: Ensures the engine receives the right amount of fuel for the increased air intake.

Choosing the Right Turbo Kit

When selecting a turbo kit for your Scion FR-S, it’s essential to consider compatibility, cost, and performance. Here are some popular options:

  • Greddy Turbo Kit: Known for its reliability and performance, this kit is a favorite among FR-S owners.
  • Vortech Supercharger: Offers a different approach with supercharging, providing excellent power gains.
  • Turbo Kit from HKS: A well-respected brand that delivers quality and performance.

Installation Process

Installing a turbo kit can be a complex process, but with the right tools and knowledge, it can be done at home. Here’s a general overview of the installation steps:

  • Gather Tools: Ensure you have all necessary tools, including wrenches, sockets, and screwdrivers.
  • Remove Engine Cover: Start by removing the engine cover and any components obstructing access to the engine.
  • Install Turbocharger: Follow the kit instructions to mount the turbocharger to the engine.
  • Install Intercooler: Position the intercooler in the front of the vehicle and connect the piping.
  • Connect Wastegate: Ensure the wastegate is properly connected to regulate boost pressure.
  • Update Fuel Management: Adjust the fuel management system to accommodate the increased airflow.

Tuning Your Scion FR-S

After installing the turbo kit, tuning your vehicle is crucial to maximize performance and prevent engine damage. Here are the steps for tuning:

  • ECU Remap: A professional remap of your engine control unit (ECU) is necessary to optimize fuel and timing settings.
  • Dyno Testing: Use a dynamometer to measure the power output and make adjustments as needed.
  • Monitor A/F Ratios: Ensure that air-fuel ratios are within safe limits to prevent engine knock.

Cost Breakdown

Here’s a rough estimate of the costs involved in a turbo upgrade for your Scion FR-S:

  • Turbo Kit: $1,200 – $1,800 depending on the brand and features.
  • Installation Costs: If you opt for professional installation, expect to pay around $300 – $500.
  • Tuning Costs: Professional tuning services can range from $200 – $400.

Potential Risks and Considerations

While adding a turbocharger can significantly enhance performance, there are risks involved. Here are some considerations:

  • Engine Reliability: Increased power can put additional stress on engine components.
  • Warranty Concerns: Turbo upgrades may void your vehicle’s warranty.
  • Insurance Implications: Modifications can affect your insurance policy and rates.

Conclusion

Upgrading your Scion FR-S with a turbocharger can be a rewarding project that significantly boosts performance. By following this guide, you can achieve an additional 100 horsepower for under $2,000. Remember to prioritize proper installation and tuning to ensure your vehicle runs smoothly and reliably.