If you read any of the design phase articles, you'll know it was more-than 'just a regular engine with a turbo bolted on.' For one thing, at those speeds, aerodynamics play a very important part in attaining the numbers it does for top end and time to speed. Given a multi-mile room to run, no doubt it will go even faster.
I don't blame them for setting a 400 km/hr goal, what more do you need to prove? Sure, getting to a higher top speed is 'bragging rights,' but I'd say the guy on this can lay claim to some goals few people have ever reached in speed alone, nonwithstanding the brief 26 seconds it took to get there. Two wheels or four.
Many people have the knowlege to make HP #'s like this, but how-many can have the bike live at that speed, and be docile-enough to be ridden around town, normally? Yes, I know this is a 'closed-course only bike,' get the mere 200 HP one at a big $$ discount for your street use.
This is a total package, not meant for the average joe, unless he has $50,000 in funds he doesn't need. The aerodynamic work alone cost them far-more than that to build-into the bike, and is one of the reasons it's able to do what it does, without pitching-off the rider due to turbulence and instability.
I've written before about Mark Moisan, a FL guy who had an old-school carbed at-first, then later fuel-injected turbo GSXR1100 doing 229 mph in the CA desert during the Sportbike magazine "UFO Shootout." This was back in the very early 1990's. He could have probably gone faster, but the early carb set-up blew-apart on the top-speed run. His bike eventually was running a bit > 400 RWHP. But, turn the boost down, and I saw his wife ride it on the street.
If you put-together a high-HP bike to hit a bragging-rights dyno #, many people can do that but the longevity is very much in-question. That is not apparently an issue here, and that's why this bike is so-impressive.
i am sorry but i just cant be all that excited...
for me its just a regular engine with a turbo bolted on a different looking bike.
and i say different,not good looking.
i can see ghost rider busa doing more than that and with way less money on youtube.
hell,if i set my mind to it i could do it myself too.
its not street legal,so i put it on every other crazy projects that we see around the world,and to be honest 300hp is on the low side for what we see today on those builds.
yes,its a statement from kawasaki,but its one thing that i can see other brands doing if they wanted to.
and better.