Re: stock puch cylinder porting gains

derek /
This single post is part of a larger thread. Start from the top or view this post in context.

nickerbocker - got any photos of the new cylinder? Im interested in seeing how it turned out. and when you said you made 2 new ports, do you mean like the boost ports that only go into the cylinder part way or full blown ports?

ShaneB - Ive heard both. I was talking to my dad about it, and he said when he used to race motorcycles that the different teams would either leave it rough or polish it. They said if it rough it atomizes better. the others said if you polish it, theres less friction which equals better flow and more power. He ran both and said he couldnt tell a difference.

This single post is part of a larger thread. Start from the top or view this post in context.

Want to reply to this thread?

We'd love to have you join the discussion, but first you'll need to login (or create an account).