[El_Flaco]

The valvetrain looks like it is still mechanically actuated (no hydraulic, electical or pneumatic systems... yet). The two small humps on the left side (as you look at the picture) of each valve cover looks like conventional (most likely) gear-actuated camshafts, a lot like the RC-51. However, it is possible, as another article pointed out, that due to the bulk of the cylinder head, that the V-TEC system may have been engineered into it. Something tricky is going on in there, that is for sure, but what? It looks a lot like a Honda CART or F-1 engine, so it's certain that they have drawn off of that knowledge building this engine. And if, that's a big if, the rumors are true about a CBR powered by a version of this engine, that could spawn a whole new breed of GP-rep streetbikes. A V-5 CBR-820RR anyone? Very cool.

Enter the dominance of the 4 stroke into GP's again!

 

[El_Flaco]

Four strokes=GOOD

Four strokes are great! I don't know where the guy that said they were dead is, but I said a while back that 2 strokes are nearing the end of their useful life for motorcycles, and I stick by that. The new Honda engine is one example of why this is, and why the new 4 strokes are going to dominate in 2002; can't wait to see what the other manufacturers are going to bring out. Wonder what MV Agusta has up their sleeves?

 

[El_Flaco]

It would be easier to...

Interesting concept, but wouldn't it be easier to have the onboard computer simply modify the fuel and ignition maps to adjust power levels rather than cutting out cylinders? That could be a very rough transition, much like a nasty rev limiter. In fact, Mondial, an Italian bike company which uses RC-51 engines in their chassis and body, has been developing this type of system. Check it out:

http://www.motorcycleworld.co.uk/BIKES/BIKES.asp?page=Earlier+Bike+News&passeddate=26/01/01

It's a very good looking bike! Advanced technology, also.

So you have a good idea, but the Cadillac system was meant to improve fuel economy rather than modify power for traction. I think that there would be easier and more effective methods of accomplishing the same thing. Mondial could be on to something.

 

[El_Flaco]

Uhhhh...

What would an American agency (the EPA) have to do with a predominantly European and Asian racing series? Last time I checked, there weren't any GP races in the US. The EPA's rules have little or nothing to do with the rule changes.

 

[El_Flaco]

More info!

http://www.motorcycledaily.com/30jan01hondasv5motor.html

The article has an official press release from Honda stating that the engine will have round pistons, not oval, and 4 valves per cylinder. Clears up some of the speculation surrounding the engine. Or Honda could just be trying to throw the competition off... Interesting article by motorcycledaily.com- this seems to be a really hot topic on every motorcycle site out there!