I'm not sure if any of you follow Moto GP but it is one of the many motor sports I love to watch. Yamaha and Honda both just released Pneumatic valve engines and this is Kawasaki's answer. I'm not sure of the specs but just listen to this bad boy.

http://videos.streetfire.net/video/Kawasaki-Screamer-engine-motogp-2008_157554.htm

comparativly, I have no idea if that's better or worst than the others...

but it still sounds freggin bad ass! You gota wonder how many rpms he was doing when he went smokin by the camera.

It should be on par with the new engines from Yamaha and Honda which are 800cc and pushing out 220-260 bhp. The Pneumatic valve system uses air pressure to force the valves closed faster which allows the engines to rev faster and higher due to the fact that the valves can be held open longer. I'd imagine these bikes are revving somewhere in the 17k-20k RPM range with the new engines as the spring valved engines are revving up to 18k now. I'm not sure what gives the Kawasaki the unique very F1 like sounds as compared to the other bikes. It is either revving much higher or the valves are significantly different then the other 4 cylinders out there. In any case like you said it sounds unbelievably good.

Wow, that sounded awesome. It really does sound similar to an F1 car. Interesting.

Tell me, I havent kept up with the new technology coming out in the road versions of street bikes like I used to. Are Yamaha and Honda going to be using the pneumatic valve system in their road versions? Or is that just for the MotoGP bikes? It'd be awesome to have that on a road bike.

I highly doubt they will adapt pneumatic valves to any street going motorcycles anytime soon.The closest thing to it is Ducati's Desmodeci system which is not pneumatic but a rocker arm type set up. These bikes are pushing out 220-280 bhp like I said before where the street bikes are topping at 170-180 max. So the technology would be over kill. I'd also imagine it would not run overly smooth for typical day to day driving situations where low RPM and mid range usage would be required as well. Plus it is a new technology even to Moto GP so I's most likely not refined enough for any street applications. It would be interesting to see if it happens though. Perhaps in a few years.

I highly doubt they will adapt pneumatic valves to any street going motorcycles anytime soon.The closest thing to it is Ducati's Desmodeci system which is not pneumatic but a rocker arm type set up. These bikes are pushing out 220-280 bhp like I said before where the street bikes are topping at 170-180 max. So the technology would be over kill. I'd also imagine it would not run overly smooth for typical day to day driving situations where low RPM and mid range usage would be required as well. Plus it is a new technology even to Moto GP so I's most likely not refined enough for any street applications. It would be interesting to see if it happens though. Perhaps in a few years.

Thats what I figured, thanks.

This sounds like a Formula 1 car. Great sound!

Do street REALLY need to get any faster? They are ALREADY too fast...seriously, what's the point? For a race bike I can see the point, it's racing. But on the road, you've already got the fastest thing on the road in between your legs if you have nearly ANY modern street bike past 600ccs.

Do street REALLY need to get any faster? They are ALREADY too fast...seriously, what's the point? For a race bike I can see the point, it's racing. But on the road, you've already got the fastest thing on the road in between your legs if you have nearly ANY modern street bike past 600ccs.

They dont need to, no. But you know there is someone looking for a faster street bike. I'm never opposed to a company making a faster street version of their product. Technically, there's no point to any street vehicle, since they are all capable of speeds much faster than legally allowed, except in such cases as the Autobahn and places like that. But I like the fact that companies are always pushing the limit on how fast they can make a car.

But yeah, the bikes they produce for the public today are seriously fast, that's why I didnt really think they were using the pneumatic valve systems in their production models. It'd be cool though.