Vitalmx 2010 YZF450


6 replies to this topic
  • krony506

Posted September 27, 2009 - 10:27 AM

#1

Here is the link, They got some pretty cool pics and info from Budds Creek. I sure do love racing on that track!
http://www.vitalmx.c...aha-YZ450F,2998

  • Scoops25

Posted September 27, 2009 - 08:25 PM

#2

Nice!!

  • rufusz

Posted September 27, 2009 - 10:28 PM

#3

"Moved the rotating camshaft towards the center of bike..."

I hope he meant crankshaft, or he's just full of b@#^!$

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  • yz_for_me

Posted September 27, 2009 - 10:32 PM

#4

Good article. Lot's of interesting info on the development of the bike.

  • grayracer513

Posted September 28, 2009 - 05:53 AM

#5

"Moved the rotating camshaft towards the center of bike..."

I hope he meant crankshaft, or he's just full of b@#^!$

Really? The crankshaft was not relocated by changing the cylinder inclination. The camshafts were, though, and toward the center of the bike. But I always have agreed that any concern over the gyroscopic effect of the camshaft(s) is vastly over-blown, as they are too light, too small in diameter, and spin too slowly to have a significant effect in that regard.

  • rufusz

Posted September 29, 2009 - 02:14 AM

#6

I always have agreed that any concern over the gyroscopic effect of the camshaft(s) is vastly over-blown, as they are too light, too small in diameter, and spin too slowly to have a significant effect in that regard.


That's what I meant. :busted: If the crankshaft would have been moved backwards by a couple of cm, of course not in the engine, but relative to the frame, that would have maybe some (little?) effect.

  • grayracer513

Posted September 29, 2009 - 06:40 AM

#7

Since the crank weighs more, moving it any distance would have a greater effect than moving the head, but the head is weight, too, so it does matter that it was shifted rearward. The only part that too big a deal was made of was the gyro effect of the cams.





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