Carefully choose your ECU tuner, they are not all the same and the outcome depends on multiple factors, not the least being competency and experience.Re-tuning the ECU is a must when running aftermarket exhaust or air intake systems to adjust fuel mixture to match improved airflow.(Just a reminder, American Sport Touring does not accept endorsement fees or compensation of any kind from those who contribute.) Six Key Takeaways For balance, we also listened to feedback from riders. To get a complete picture, we spoke with several major tuners, and had an in-depth conversation with Nate Phipps at 2 Wheel DynoWorks. This article explains how to go about modifying your ECU safely and what to consider before going ahead. Which is why experienced riders seek-out ECU modifications to put more of that control directly in their hands. In fact, the ECU, not the rider, has the final say about throttle response. This amazing device is known as the Engine Control Unit or ECU for short. ![]() A device that listens to throttle inputs and then translates them into signals that control engine performance. The difference between ECU Flashing and Dyno tuning will be covered in Part 2.Hidden under the fairings of your sport touring motorcycle lies an electronic marvel that can best be described as an ever present, always rational, never flustered, copilot. This means the power your bike can produce will not be as great as a flash created specifically for your bike after running it on the dyno. One thing bear in mind is if you flash your ECU by mailing it in and without dyno tuning, the changes to the ECU to increase power are more of a “one size fits all” kind of deal rather than changes specially suited to your exact bike (every engine system between the same type of bike can vary greatly!). None of these features would otherwise be accessible to the average person and to flash the ECU like this requires some pretty expensive gear which is not worthwhile for a one-off job. You can also see new changes such as the radiator fan temperature, adjustable rev limiter and engine braking adjustment is also available. ![]() In this case, the fuelling and ignition is changed which allows more power to be made, however restrictions imposed by the Yamaha factory are also removed which makes the bike feel more “alive”. This loads a whole bunch of new changes to the ECU. This ECU flash requires that you send in your ECU to them and they “flash” the board. PWR 3 Is most linear and least sensitive of the full power modes, and is great for a rider who prefers a very linear throttle. Many racers and track day users prefer this throttle map. PWR 2 is a bit more linear in how it reacts and has less sensitivity than PWR 1. PWR 1 features a very aggressive, quick turn throttle feel. Our 2015 YZF-R1 ECU Flash features 3 custom full power throttle and ignition maps integrated into Power modes 1-3. ![]() Included features: Remove all throttle based restrictions Fully revised Power Modes Remove all speed and gear based restrictions Optimize ignition timing for 91+ octane pump fuel Fully customized fuel mapping Customized race throttle maps for Power Mode 1-3 (4 left stock for bad conditions) Customized engine braking strategies Ability to load Power Commander maps directly onto your ECU Adjustable radiator fan temps for more efficient cooling Adjustable rev limiter Disable closed loop mode Adjustable velocity stack opening point Disabling the factory AIS (smog) system Disabled EXUP & error recall Disabled fuel injector cut Disabled steering damper (removes code for aftermarket units) Here is an example of a simple ECU flash done by Superbike Unlimited. Yes, even your mum’s Toyota Corolla can produce more power with a new exhaust system and ECU reflash to suit.ĮCU flashes on modern day bikes don’t just give you more power, they make the bike a lot more friendly to ride. ![]() The fact is all modern vehicles come heavily restricted in their factory form to meet emissions and noise requirements. Since your average Joe cannot dyno tune and flash their ECU at home to get the best out of their vehicle, ECU Tuning is always thought of as a bit of “Black Magic”. This is done by modifying computer code in the ECU to make the engine behave differently. Tuning and ECU (Engine Control Unit) Flashing are done as a way to increase the power of your vehicle and/or improve the driveability/rideability.
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