HomeNews / Race Results2019 Kawasaki Ninja ZX-10R | ECU Flashing with Mad Scientist Don Guhl

2019 Kawasaki Ninja ZX-10R | ECU Flashing with Mad Scientist Don Guhl

Brocks Performance

2019 Kawasaki Ninja ZX-10R

ECU Flashing with Mad Scientist Don Guhl

WARNING: Some of the information and performance techniques listed in this video are advanced. Please use discretion when attempting these or any other high-performance modifications. If in doubt, always choose SAFETY FIRST and configure your bike exactly as your manufacturer suggests.

If you had a full day to ask Guhl Motors’ owner (aka ‘Mad Scientist’ and self-described ‘white hat hacker’,) Don Guhl, questions about ECU flashing, what would you ask? Well, Brock knows what HE would ask, and it leads to some very detailed explanations on ECU flashing as well as few uncomfortable moments. Brock even grills the ECU wizard for answers to questions many of you don’t know to ask –yet-. Just keep watching our channel 😉

In this episode, Brock’s discussions with Don uses our buddy Mike’s 2019 ZX-10R as the example, but the theory discussed also relates to most modern-day sportbikes. All Kawasaki sportbike owners yearning to extract race-worthy performance out of their machines will find this episode particularly interesting. How much power does Kawasaki’s newly revised ZX-10R power plant have the ability to produce using ONLY electrical modifications? We answer this question while demonstrating the steps along the way, and we don’t need to tell you how much Brock enjoys presenting highly technical information in a way that is easily understandable. Now Don on the other hand… well, we think you will enjoy how they team up!

We hope you enjoy: Kawasaki Ninja ZX-10R (2019) ECU Flashing with Mad Scientist Don Guhl


  • 2019 Kawasaki Ninja ZX-10R
  • Owner: Mike G
  • ECU tuning performed using MorDefy software (beta version) by Guhl Motors
  • 89 Octane Shell Fuel
  • Dynojet PCV (installed to expedite data gathering only, ZERO map installed)
  • All else completely stock
  • Brock’s Kawasaki ZX-10R (16-19) Information Page.

Dynojet Model 250I dyno using DynoWare RT, Power Core C3 and WinPEP 8 dyno control – displaying the SAE scale (unless noted otherwise in the video)

0:18 – Video introduction
1:15 – Dynojet PCV installation
10:10 – ZERO map in PCV
11:10 – Baseline dyno runs and compare
13:31 – Discuss baseline and restrictions
15:05 – Viewing OEM throttle mapping
19:15 – Installing de-restricted ECU
21:00 – Dyno runs without throttle restriction
22:15 – Discussing results with 100% throttle
23:35 – Fully opening exhaust servo motor
24:48 – Changing to Lambda scale and why
26:20 – Why does ECU flashing take so long?
28:25 – Making ECU Hex Code human-readable
29:40 – Developing software to edit ECUs
33:07 – ECU modifications overview
36:00 – Dyno runs with additional ECU adjustments
37:10 – ECU reinstallation procedure
38:48 – Dyno runs with adjusted fueling
40:03 – Don Guhl Q&A (bricked ECUs & homebrew flashing)
46:50 – Just the tip of the ECU flashing iceberg
48:15 – How do we make more horsepower?
49:30 – Final dyno runs / discussing final results
51:55 – Video conclusion / what’s coming next?


Visit www.BrocksPerformance.com for additional information, installation instructions, information forums, and FAQ sections.

About Brock’s Performance: Brock’s Performance leads the way in sportbike innovation for acceleration addicts. From exhaust systems to wheels, this championship-winning company designs, builds and sells more than 3000 products that make it easier and safer for racers and street riders to reach record-breaking results through a never-ending process of research, development and track testing. For more information about Brock’s Performance parts, go to BrocksPerformance.com or call 937-912-0054.

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