Today is a big day for fans of hauling some serious tail. Now you have the ability to reflash your own Yamaha ECU without having to remove it from the ski thanks to V-Tech. The V-Tech Tuning Bundle Pack on sale now comes complete with everything you need to tune your 2009-2013 Yamaha WaveRunner.
And while this system currently supports Yamaha WaveRunners built between 2009-2013, V-Tech assures that a 2009-2013 ECU can be programmed to work on a 2014 or newer ski. The Bundle comes with the V-Tech Maptuner with Yamaha tuning cable and (1) tuning license. Of course, more tuning licenses can be purchased separately if you have multiple skis to tune.
According to the announcement on 4-Tec Performance, “with the Maptuner you simply connect the tuner to the ECU and the ski’s battery, and you and read/write to the ECU to reflash the ECU with a performance map.”
As of right now, there are three tuning choices: Stage 1, Stage 2 and Stage 3:
STAGE 1
This stage is designed for a original ski without hardware modifications.
Power Output: 240hp-250hp @ 8300rpm. Rev limiter is set at 8450 RPM.
STAGE 2
The Stage 2 tuning is designed for a ski with aftermarket air intake and exhaust and supercharger modifications up to 15 psi boost pressure.
Power Output: 250hp-260hp @ 8400rpm. Rev limiter is set at 8500 RPM
STAGE 3
The Stage 3 tuning is designed for use with after market air intake, exhaust modifications, after market intercooler and up to 17 psi boost pressure. A rising rate fuel pressure regulator is required for higher boost pressure. The boost cut limiter is disabled.
Power Output: 300hp @ 8500rpm. Rev limiter is set at 8600 RPM
There are quite a few other features available through this bundle which can be reviewed HERE.
