Here's some info on the Re-flash of your factory Yamaha ECU.
Mountain Performance Inc. (MPI)/ Evolution Powersports is proud to announce a broad range of ECU Programs for the Yamaha Nytro. Our strategic development group has spent the last 3 years perfecting a variety of different OEM ECU software calibrations that are ready to be unleashed on the Yamaha community.
Safety Flash: In this software recalibration, the engine timing is re-calibrated to reduce ignition timing as water temperature increases and the temperature light illuminates 20 deg F sooner than stock (stock 212F, now 190F). The stock parameters are not sensitive enough to protect the engine while under boost. When the stock program turns on the temp light while on boost, the engine may already have been damaged. Our software flash protects the engine by reducing timing as water temperature increases to help safeguard against engine damage. The rider is also alerted by illuminating the water temperature warning light.
Part # HSE-0060 $299 (or $99 when added to 550cc Injector Flash).
Reduced Timing Flash: In this software recalibration, the ignition timing tables are re-mapped to compensate for boosted applications. Ignition timing is gradually reduced as the engines load (throttle position) increases which is essential in eliminating engine detonation. The reduction of ignition timing allows for more boost at any given octane fuel. Example: if OEM programming is safe at 5PSI of boost, this re-map would allow 8PSI of boost while using the same fuel. A second example: Vehicles running race gas to allow a given boost level could now be run with pump premium fuel. It many cases this flash can eliminate the need to run a head shim (and remove all the liabilities of having to disassemble and reassemble the engines cylinder head). A good rule of thumb is that this calibration allows for 2 to 3 more PSI of boost without further engine modification or fuel octane increase.
Part # HSE-0062 $299 (or $99 when added to 550cc Injector Flash).
Safety Flash with reduced timing: In this software recalibration, the safety flash and reduced timing flash are combined to offer the ultimate performance and engine safety package.
Part # HSE-0061 $399 (a $200 savings)
2008-2011 Nytro hand warmer fix: Hand warmers on earlier model Nytros do not get as warm or heat up as fast as the 2012 and later models. This is due to the ECU’s programming and is actually not the warmers themselves. By simply re-flashing the OEM ECU grip warmer performance is greatly enhanced. The recalibration increases power output to the hand warmers which makes them function more effectively. After the re-flash the grips actually get hot while the engine is idling. The increased grip warmer is immediately noticed and appreciated by the driver.
Part # HSE-0066 $99.00 ($79.00 when combined with any other flash package HSE-0067).
550cc Injector Flash (used in conjunction with MPI/Bosch 550cc injectors): This software recalibration replaces the OEM 330cc injectors with 550cc injectors. The 550cc re-flash is used in conjunction with your existing piggyback / auxiliary fuel controller. The 550cc injectors allow for 40% more fuel versus the OEM injectors. The vehicle maintains perfect drivability with 550cc injectors, with no hiccups, glitches, etc. It is widely accepted that supplemental fuels controllers do a great job of managing fuel for boost as long as the OEM 330cc injectors are maintained; unfortunately horsepower is limited by the injector size. With the 550cc re-flash, the OEM computer compensates for the larger injectors leaving the piggyback / auxiliary fuel controller to manage the boost fuel. Property scaled larger fuel injectors are the only way to increase fuel delivery and have an OEM like performing engine – without hesitations, stumbles, etc. The OEM computer contains all the knowledge and strategies for idle, acceleration, deceleration and all other transitional throttle changes. When the OEM injector size is changed, the OEM computer must have all of its tables re-mapped to compensate. If the OEM ECU isn’t remapped, the piggyback / auxiliary fuel controller must constantly try to second guess and correct for transitional changes that are miss-managed by a non-reprogrammed OEM computer. This also eliminates the need for a second set of supplemental injector; an alternate method sometimes used to overcome the 330cc injector limitation. Idle RPM has been increased by 150 RPM, eliminating the need to manually adjust the OEM throttle stop (manually adjusting the throttle stop often results in unexpected idle characteristics because the computer’s ability to electronically control idle has been overridden). This software flash is sold in conjunction with high quality Bosch 550cc injectors, which includes all necessary hardware for direct replacement of the OEM 330cc units.
Part #s HSE-0063 & HSK-1238 $799 (includes injectors and hardware).
Please specify Vehicle Year plus Supercharger or Turbocharger type
