![]() We normally use a control tire when conducting track tests, and for this test we really didn’t want to mess with tire warmers and the extra hassle they involve. An Open class was added to this day for bikes of all sizes, which allowed the R7 to play (and to recoup some of the trackday costs), but the heart lies within the little bike ranks – and it’s a really great time.ĭunlop also supported this test, providing its Q5 trackday tire for both bikes, leveling the playing field and giving neither bike a tire advantage. After its founder, a small-bike enthusiast and Yamaha R3 owner, found himself getting smoked in the straights by literbikes, only to pass them back in the corners, he thought he’d start his own trackday catering to 400cc bikes and smaller. Which is where both of these bikes shine anyway.įor this test we joined our friends at Compact Octane, a new trackday upstart in the SoCal region, at the Streets of Willow racetrack adjacent to Willow Springs. For this and other reasons, like a low-torque, high-revving 400 being a less-than-optimal street bike, we’re keeping this test track-focused. We’re not blind to the fact that many people are going to run a flash on the street anyway, but you run the risk of serious penalties and/or fines not just for yourself, but also for the tuning house if you get caught. ![]() Meaning, technically, your bike isn’t street legal with the flash. With the EPA clamping down on aftermarket tuners who skirt around emissions regulations, it’s more important now to reiterate that the Graves ECU flash is for off-road use only. However, flashing comes at a cost beyond the $350 Chuck charges. If you’re willing to live on the knife edge, getting to triple digits is also in the cards. In speaking with some tuners, it sounds like 90 reliable horsepower is possible. ![]() ![]() Naturally, adding other mods like an exhaust or velocity stacks would open the Kawi’s potential even more. Without making any other changes, that alone unlocks a ton of power. However, it’s safe to say that the ZX-4RR throttle plates are now allowed to open fully – and stay open – past the stock restriction of 11,500 rpm, all the way to its 16,000-ish rpm redline. The exact details of what an ECU flash entails is the secret sauce of any tuning company, so naturally those things are closely guarded. ![]()
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