Bud Bottle no weld mufflers

[Altavillan]

These are the coolest. and here's how. I think I mentioned everything but to use Silicone Water Heater Hose. Buy it at Napa with a 1' ID. The aluminum tube is from a camping cot frame. Aluminum folding chairs work also. The exhaust tips can be flaired down to quiet the sound to be as quiet as store bought cannisters, but that requires welding. Otherwise they are about as loud as stock mufflers. Each complete muffler weighs 6.25 oz including mount.
The more you screw up the funner it is.

[Greyhoundman]

What size engine are these appropriate for?

[Altavillan]

Better view of the mount and rear flair seal.

[Altavillan]

100 through 170 cc twins use 1" OD tube so I would say up to 80 cc per muffler. Mine are on a BME 115.

[RTK]

I've seen these cans, and they are sooo cool. There is only one problem..............
If you are at a fly-in with him, keep your eyes on your folding chairs and cots

[BTerry]

	Quote: Originally Posted by RTK
	I've seen these cans, and they are sooo cool. There is only one problem.............. If you are at a fly-in with him, keep your eyes on your folding chairs and cots

...not to mention the cooler full of Bud!

[robertp17]

Now if you could just figure out a way to fill the outer chamber of the bottle with fiberglass insulation or silencer packing like on a 2 cycle moto-cross bike exhaust It would be really quite and give it a nice tone.

[Neogenesis]

Anybody know who it was at Toledo that had a booth with bud mufflers on display? He was doing them all with JB weld.


Neo

[BubbaGump]

That was the OMP booth. those were for the OS 160, and the OS91/120. They work extremally well on those moters. Has anyone tried these on a DA100. And if so are they quiet?

[Salmon]

Yep, that was us at OMP. Thanks to Mark Trent, he and I started brainstorming about this at the DOGS show several years ago. I got tired of mousse cans coming apart since they were VERY thin aluminum. So I made up a double can pipe for my OS 160 and it worked awesome. The bottle neck fits the 7/8" coupler perfect and a 3/8" stinger pipe JB Welded in the end is virtually all you need.

[Neogenesis]

Have you tried the JB Weld issue with gassers yet?

Was wondering if JB will hold up to the heat.


Neo

[Jonathan Ott]

Aside from the flairing punch, looks like the average Joe could make a set of these rather easy. Where did you get the flairing punch, or did you fabricate it yourself? Also, what...'bout $10 for the "canister" (not including the header to get from the engine to the engine to the bottle?)

Jon

[tonyc9075]

Could you please explain "silicone plug form between 2 styrofoam spacers"

[Altavillan]

The punch is a 1" bolt ginded to shape.
The silicone plug stops the exhaust from flowing straight through. To make the plug force the tube end into some styrofoam. Then push the cored styrofoam down till it is placed where you want it. Then do it again and push the next core down till there's about a 1/2" gap. You want lots of little holes around this area to hold the plug in place. Drill 1 hole large enough that you can squeese some High Temp copper silicone into untill if comes out all the holes. Let the silicone cure and later cut off the excess so the tube will slide into the bottle. If noise isn't a problem and you like loud you could eliminate this step. The exhaust will quickly melt and eject the styrofoam.
Yes I'd say about $10 per muffler. Same or better sound than cans at a fraction of the cost with a no loss of performance.
Stingers(narrowed exhaust outlets), can be made without welding by hack sawing a tapered long V shaped piece out of the ends after the bend. Then tap hammer them to close. Then wrap with teflon tape smeared with a thin layer of High Temp silicone. Thats how I did mine except I welded the joint back up.
Another way I'll try to do the stingers is to use 1/2 " aluminum pipe with silicone inserts added till they are thick enough to clamp into the 1" id silicone and clamp it together but that might need a pic to explain.
The stingers quiet it down to barely louder than KS 86 cans I have that weigh about 6 oz more.

[Mithrandir]

Sweet!! I love this!