Unlike our competitors, we pride ourselves on our extensive testing and transparent test results. For *complete* RCF tuning results please refer to ourRCF tuning blogfor the most complete and transparent dyno testing ever conducted on the RCF/GSF platform!
RR Racing is proud to make history again by being the first to offer an ECU reprogramming for Lexus RC F engine control unit (ECU). The Lexus RC F ECU is a very complex and sophisticated engine management system. RR Racing has been developing this upgrade tune with weeks of testing, intimately understanding RC F ECU's parameters and structures, testing various changes to optimize power and torque effectively while retaining stock fuel efficiency, knock control sensitivity, and other built in safety features. During the development and testing period, we have logged many track hours and hundreds of miles of road testing and road-dyno logging with many more hours spent on a sophisticated Dynojet dyno at a top-notch climate-controlled facility.
We had done most of our development on the road, under real world conditions, doing hundreds of runs, datalogs, and hundreds of miles of testing between re-maps in order to determine how the ECU reacts to changes and adjust learning parameters. We have developed a full understanding of the following ECU functions/parameters, including but not limited to:
- Direct Injection / Port Injection fuel mapping
- Ignition control (RC F has base ignition maps, cam timing dependent ignition maps, knock correction maps)
- Intake and Exhaust variable cam maps
- Torque to throttle mapping (allows us to enhance throttle response)
- Raise the speed limiter
Our on-road impressions are that the RC F pulls much more smoothly and linearly, with excellent midrange torque improvement you can definitely feel and appreciate.
After extensive road dyno and datalogs, we headed over to top-notch climate controlled Dynojet testing facility and conducted many hours of dyno tests.
Note results below showing Full Bolt on and tune gains vs stock on e30 blend fuel:
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Note: Results below reported with "SAE Correction" and read lower than "STD correction"
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For a more recent RCF dyno testing results, please refer to the following News Article:
http://blog.rr-racing.com/news/2022/01/13/dyno-testing-the-latest-mods-on-lexus-rcf/
Ordering hacks:
- If you want to save money on tuning, pair the tune as an option on the header product page and save $100
- PPE Headers: if you would like to order header, please go to the header product page, and select this tune as an option.
- Ceramic Coating: we recommend adding ceramic coating for thermal insulation
- Manifold Gaskets: we highly recommend installing new Lexus manifold gaskets
Special Note regarding future tune updates: Tune updates for parts purchased directly from RR Racing are free. This applies to headers, intakes, exhaust etc..
RR Racing reserves the right to charge a tune upgrade fee (Example $200) for parts not purchased from RR.
Important Disclaimer
RR-Racing cannot ensure the applicability of manufacturer's or third-party warranties after performing this modification. Likewise, RR-Racing does not provide any warranty, written or implied, to the engine or drivetrain of your vehicle. RR Racing is not responsible for any accident caused by the use of our products and ECU upgrade -- our products are intended for race track use solely at purchaser's risk. By buying this product, you agree to the terms of this disclaimer.
Other FAQs:
Do you recommend aftermarket intakes?
We do not recommend any aftermarket intakes that remove the factory airbox. The only recommended intakes are intakes pipes like our RR-Racing Intake pipe, or equivalent.
