To tune a Civic Type R, you must first become intimately familiar with a few concepts that affect nearly every aspect of the tuning process.

Just because your torque request is set to a certain 'safe' torque does not mean the ECU won't significantly overshoot the torque you request, and it is quite easy to do so. While the ECU is considered 'relatively safe' to tune on, you still can push the engine too far and damage or destroy it, especially if you are not doublechecking the torque output with a dynamometer. Many of these techniques are still being refined or even discarded due to the ongoing developments in understanding the FK8 platform. Lots of this information is guesses made after years of experimentation. This is meant to be purely informational on a platform where there is very little info, and some things may not be correct or even safe. You are fully responsible when using the information in this guide. 16.2.1 Boost pressure not reaching commanded pressure.16.1.7 Commanded fuel pressure reaching 250 bars.16.1.6 Long term trims wildly different after reflashes.16.1.4 Boost pressure command pegged to max PSIG.16.1.3 Boost pressure spike on throttle plate closure.16.1.2 Slight fuel pressure loss during WOT.16.1.1 Air fuel ratio swinging at idle and part throttle.11.4.1 Lowering fuel pressure for more flow.We recommend using Hondata to get the best results.įK8 Clinic is always willing to help both self-tuners and professional tuners. While some of this guide also applies to other Type R tuning platforms since it is still the Bosch ECU, many of the tables, mods or sensors used in this guide are not available or work entirely differently. General information regarding tuning and modifying a Type R for more power can be found on the main Tuning article. An FK8 ECU is great for someone to learn tuning on, but you must understand electronic fuel injection first. If you do not understand the fundamentals of EFI tuning, you should not attempt to follow this guide blindly.

This is not a guide for those who just want to get their Type R tuned on a basemap or a custom tune by someone else. It is very long, but every piece of information in this guide is necessary to produce a proper calibration. There are many videos and courses online about both of those subjects, so many general topics won't be covered in depth here in order to focus on techniques specifically for the FK8. It was created by Kefi from the FK8 Clinic and is meant for those that are already familiar with EFI tuning and the Hondata interface. This guide covers nearly every aspect of custom tuning a 2017+ Honda Civic Type R using a Hondata FlashPro.

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