yes but he said cc=power and the 250r has less and makes way more power than a 300ex

 

And if you add more cc's to the 250R you will have more power. If you add more cc's to the 300ex you will have more power. He is right, when you add more cc's you can add more power. The whole topic was about adding displacement to an existing motor size, not comparing two strokes to four strokes.

 

Two strokes fire twice as often as four strokes
But four strokes are mor efficent

 

Well, now lets think for a second. The same reason a stock 500 Zilla will kill a stock 660 Raptor. Apples to oranges. 2 stroke vs 4 stroke.


Also, yes a fully built 416 will sure beat a poorly (or NOT fully) built 440.
Same as a fully built 400EX killin' a poorly built 416. Its STILL apples to oranges. A FULLY built 440 will have more power and torque than a similarly built 416. Why wouldnt it?

There is no replacement for displacement. (Except of course forced induction... thats a different ball game)

-Matt

 

bump+ anybody know yoshimura's web site or even if they have a wabsite

 

We had TMM build our EX to a 416 first. It was a awsome power gain. When we made it into expert class we needed more power and had TMM make it a 440 stroker. Once again it was a huge power gain. But to do it right it takes $$$$$. Now we lead the pack with what we now have. The EX is a great machine, but with everybody in expert running the yzf's and crf's we had to do the same.