muffler materials

[acracker]

Does anyone know where we could find the perforated sheet metal found in most packed mufflers? Either we need a source for it or timmay! is going to need to buy a few drill bits for our muffler fabrication.
Thanks

Aaron Bloch

[acracker]

Does anyone know where we could find the perforated sheet metal found in most packed mufflers? Either we need a source for it or timmay! is going to need to buy a few drill bits for our muffler fabrication.
Thanks

Aaron Bloch

[andrewd]

dude you can probably get it from most sheet metal suppliers or tubing companies

try local exhaust shops etc for pipes and packing



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[awhittle]

Comerical heating and air conditioning companies often have air returns the are 24"x24" that lay in the acoustic grid. One of the popular versions has thousands of 3/16"+/- holes in a tight patern that gives somthing like a 50% air and 50% metal. Tommorow I can ask around at work and may be able to find a source on the material. I have used this stuff as a rock catcher air filter on the old sucker car. Hope this helps

AW

[awhittle]

http://www.titus-hvac.com/ecatalog/

http://www.theregisterpeople.com/PDF/6500.pdf

or search for

Perforated Ceiling Diffusers

AW

[Mechanicaldan]

There are many sources that can contact to just get a premade baffle. It would probably cost you the same, by the time you ordered a big sheet of perforated material. I don't know what the minimum order would be.

Dennis Kirk carries baffles.

Did you try E-bay? You could get a baffle from a motorcycle exhaust can that was crashed.

Actually, there is often $20-$50 exhaust cans that will work just fine. They might have a few scratches, but big deal for that price.

It's your time, money, and labor if you want to make one.

I just took Pat's advice and bought an exhaust can. Not worth the trouble of trying to make a 3.5 carbon can lighter. They pass tech, and they don't fall apart during the endurance.

Our team has always made it's mufflers in the past, and they have always sucked and fallen apart. Last year, as engine team leader, I just bought an aftermarket can for our car. No problems. NONE.

That's my advice. That's Pat's advice.

Cyclone Racing
www.cyclone-racing.com (http://www.cyclone-racing.com)
Iowa State University
Project Director

[acracker]

Thanks for the tips. You're steering me in the right direction. We're trying to make our own mufflers now but after comparing the quality and weight advantages of a production can I feel that thats the best way to go also.
Thanks

Aaron Bloch