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Old 12-20-2009, 08:17 AM
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longhair longhair is offline
Motorized Bicycle Elite Member
Join Date: Mar 2009
Location: eagle rock
Posts: 232
Default Re: Put the expansion chamber exhaust and its slower

Originally Posted by BOREDTrackRacer View Post
Put on the expansion chamber exhaust and its actually slowed my bike down, and its sounds crappier too. I had a stock exhaust on it, with the cap off, stuffed with steel brillow pads and it sounded great and ran great, really torque and had good top end. After putting the expansion chamber on, it sounds worse and I feel like I lost that torque, but the top speed seems around the same. Has this happened with anyone else??
Hey B Tracker, I put an expansion chamber on one of my stretched bikes and it actually gave the bike an instantanious increase in speed by 3-5 mph. This bike now does right under 35mph and have clocked myself several times with speedtrap {Chevy Chase Dr.} and car. It's important to position the expansion chamber at least 12" from the pipe connection at motorized bicycle motor head. I also use an exhaust form a pocket bike that runs all the way past seat down by tire. Good Luck
Angry samoan
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