Honda Civic Type R FK2 Tuning Guide

Honda Civic Type R FK2 Tuning Guide

Honda Civic Type R FK2 - Tuning Guide

The Honda Civic Type R FK2, introduced in 2015, has earned a reputation as a performance-focused hot hatch. Its turbocharged 2.0-litre engine and sharp handling have made it a popular choice for driving enthusiasts. If you’re looking to take the performance of your FK2 to the next level, tuning is a great way to achieve that. However, it’s important to understand the key considerations, the hardware upgrades required, and potential issues when tuning this platform.

This tuning guide will provide a breakdown of what you need to know when modifying the FK2, including common tuning stages and solutions to common problems.

Are you seeking performance and/or tuning parts for your FK2 Type R? Check out our dedicated page here

Stage Tuning Overview

Tuning the Honda Civic Type R FK2 is typically done in stages, with each stage offering progressively more performance. The most common stages are Stage 1, Stage 2, and Stage 3, but more advanced stages may exist as the platform evolves. Each stage involves different hardware upgrades and tuning requirements.

Please note - We refer to stage tuning here as it is a well known reference point for hardware and software modifications to a vehicle. We always recommend speaking to your chosen tuner regarding preferred hardware/software combinations.

Stage 1 Tuning

Stage 1 tuning is the most basic form of modification and focuses primarily on improving engine performance with minimal hardware changes. This is the ideal starting point for those looking to enhance the car’s power without making extensive modifications.

Key Modifications:

  • ECU Remap: The primary modification for Stage 1 tuning is an ECU remap, which adjusts the engine’s performance parameters. This can increase power and torque, typically adding 30-40bhp, depending on the remap. An ECU remap can also help improve throttle response and fuel efficiency.
  • Air Intake Upgrade: Upgrading the intake system with a high-flow air filter or a cold air intake will allow the engine to breathe better, improving performance. JXL Performance recommends AIRTEC Motorsport Enlarged Induction Pipe
  • Exhaust System Upgrade: A less restrictive exhaust system can improve the car's efficiency by allowing exhaust gases to exit the engine more freely. A cat-back exhaust system is often the first choice at this stage, providing both performance and a more aggressive sound. JXL Performance recommends the Scorpion Honda Civic Type R FK2 Cat-Back Exhaust System (RHD)

Considerations:

  • Warranty: An ECU remap or exhaust modification can void the manufacturer’s warranty, so it’s important to check the terms before proceeding with any modifications.
  • Fuel Quality: After an ECU remap, it’s recommended to use higher-quality fuel (super unleaded) to ensure the engine is running optimally and to avoid knocking or detonation. In the UK this can be bought from Shell (V-Power) Tesco (Momentum 99) or Esso (Esso Synergy 99)

Stage 2 Tuning

Stage 2 tuning typically builds upon the foundation set by Stage 1 modifications, adding more significant hardware upgrades to further increase performance. At this stage, you can expect noticeable improvements in power, acceleration, and overall driving dynamics.

Key Modifications:

Considerations:

  • Cooling: Upgrading the intercooler and potentially adding a larger radiator can help manage the increased heat generated by higher performance. Without proper cooling, the engine may be prone to overheating or thermal damage. Some owners have experienced cooling issues on track, consider using the HEL Civic Type R FK2 Oil Cooler kit to remedy cooling issues when you're pushing hard.
  • Driveability: With increased power, the FK2’s drivetrain components, such as the clutch and gearbox, may be under more stress. Upgrading the clutch to a performance option can ensure that it can handle the additional power.

Stage 3 Tuning (Advanced Tuning)

Stage 3 tuning is typically for those looking to push the FK2 to its limits, often for track use or extreme street performance. At this stage, the car’s entire setup may need to be reworked to accommodate the increased power and performance.

Key Modifications:

  • Full Turbo Upgrade: A full turbo upgrade is the most significant modification at Stage 3. This could involve a larger turbocharger or even a completely different turbo system to achieve maximum power output (400bhp or more), some turbos such as the Mitsubishi MHI turbo can produce in excess of 500bhp.
  • Upgraded Internal Engine Components: At Stage 3, the engine internals, such as pistons, rods, and valves, may need to be upgraded to handle the increased power and boost. This is necessary to prevent engine failure from excessive strain. Check out our engine build options for your FK2 here
  • Standalone Engine Management: A standalone ECU may be required to tune the car for maximum performance, as it allows for much more control over various parameters, such as ignition timing, fuel mapping, and boost control.
  • Increased fuelling: Quite often once you ramp up the power figures, the standard fuelling system cannot cope with the demanded fuel volume. Some owners may opt to change their injectors, some may go down the port injection route

Considerations:

  • Reliability: Stage 3 tuning is demanding on the car’s engine and other components, so reliability can be a concern. Proper installation of each part, careful tuning, and regular maintenance are essential to ensure the car runs smoothly.
  • Cost: Stage 3 tuning involves substantial investment. Aside from the cost of the hardware, there may be additional costs for professional tuning, labour, and any necessary repairs to support the increased power.
  • Legal and MOT Considerations: Any significant modifications, particularly those involving the exhaust system or emissions, may affect the car’s legal status. Ensure the car complies with UK emissions regulations, as this can affect MOT pass/fail criteria.

Conclusion

Tuning the Honda Civic Type R FK2 is a rewarding process for those looking to enhance the car’s performance. Starting with basic Stage 1 mods and progressing to more advanced Stage 2 and 3 setups, there are plenty of options to suit various performance goals. However, it’s important to approach tuning with caution, ensuring that the correct parts are used and that the car’s reliability is maintained throughout the process. Regular maintenance and proper tuning are essential to making the most of your FK2 Type R while avoiding common issues that could arise from modifications.

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