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Old 06-19-2008, 08:28 PM
nitroscope8 nitroscope8 is offline
Motorized Bicycle Senior Member
Join Date: May 2008
Location: Long Island, New York
Posts: 80
Default Re: How do you port and polish

So I decided to port and gasket match my intake and exhaust. I was a non believer before, but now i'm sold. The intake was pretty close already, but the exhaust was about 20% blocked. I matched the pipe as best I could and took it out for a test ride. First, this thing runs smoother. Second, it accelerates MUCH faster now to top speed. Top speed is the same, but the time to get there is reduced. Not too shabby.
48cc Giant. 50T, 26" wheels, catalytic converter-Built for Younger brother.

66cc Trek 800. 50T, 26" wheels, SBP tuned pipe. Top speed: now unknown.
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