Search found 2 matches

by rowo62
Thu Feb 10, 2011 4:07 am
Forum: Vespa Tech
Topic: Malossi 210 vs Polini 208...?
Replies: 1
Views: 2429

Malossi 210 vs Polini 208...?

Hi .. i'm looking for best cylinder kit for my PX 200 engines, and i've read the article about Malossi 210 vs Polini 208 for vespa PX200 http://sites.google.com/site/drunkmunkey6969/malossi210vspolini210 but im still a little bit confuse about the result.. for quarter miles race, which is better bet...
by rowo62
Sun Jan 30, 2011 5:33 am
Forum: Vespa Tech
Topic: Exhaust port 65%
Replies: 19
Views: 6178

Re: Exhaust port 65%

If we say that an exhaust port should measure 65% of the diameter of the cylinder and we know that the diameter is 69 mm, so that 65% would be 44.85 mm. How do we measure these 44.85 mm? Directly in the cylinder in a straight line from side to side of the port? Or we draw the port on a paper and th...