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Old 03-04-2012, 10:47 PM
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GearNut GearNut is offline
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Join Date: Aug 2009
Location: San Diego, Kaliforgnia
Posts: 5,106
Default Re: Schwinn Delmar First Build

A long pipe will give you more low RPM torque.
All you need to do is use a 3/4" diameter head pipe and attach that to a 1 1/2 or 2" diameter hollow (no baffle) "muffler" pipe.
The longer the psudo "muffler" is the throatier the sound will be. Think of how a trombone works. The farther/ longer the slide tube is out, the lower the tone is.

Do a search on exhaust here on this site. Lots of folks find that using EMT conduit for custom exhausts is the easiest way, and if you put a little elbow grease into it, it will polish up nearly as bright as chrome.

Just be very cautious when welding EMT as it is galvanized (zinc plated) to fight off rust and it will give off nasty fumes that you definitely do not want to breath in. Can make you sick and cause health problems in the future. I always weld on it outdoors and if there is no breeze to blow the fumes away from me, I use a fan.
"It's a chinagirl. It's a sometimes fun little engine that often will break your heart. It's disposable.

Does not come with a fortune cookie."
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