Do you think a rough textured intake runner also helps break up the fuel mixture? If that's the case should the exhaust be smoother to be more efficient? I'm thinking about why the intake doesn't perform as well with smooth flow.
Yes. Also, sharp edges at transitions help flow break away cleanly & tumble in areas where it is preferable, You just have to find & know where........................
then there is the 2 way street, and you don't want that w/the intake now do you?:thumbsup:.................................
I forget the site, but the gentleman was finishing his power calculating program &
was sharing some of his porting expertise. When he was done porting the heads, he
took a rough 6" shank carbide burr that he slightly bent the shaft on purpose, and
ran it all 'round the insides of the intake ports. Proved it's worth on the dyno & the
track....every time he did it........................