Christian_K wrote:Thanks, but isn't what he describes the total opposite of what is generally taught?
And might it even be the case only for very high RPMs, as he describes it primarily for Bike engines that rev past 10.000RPM?
jed wrote:If I rember right There is no mention of horse power.
The comentary is on how much better the bike felt and pulled comming out of turns and it was easier to ride due to throtle response ECT.
IF the ports were to big to begin with, making them smaller and increasing the velocity would produce exactially what he says.
Erland can probably speed to this, he does a lot of cycle heads.
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