Mailing List flyrotary@lancaironline.net Message #30470
From: <Lehanover@aol.com>
Subject: Re: [FlyRotary] Re: Exhaust Blowout
Date: Tue, 28 Feb 2006 07:39:22 EST
To: <flyrotary@lancaironline.net>
In a message dated 2/27/2006 9:30:42 PM Eastern Standard Time, unicorn@gdsys.net writes:
Driving down the road observing mufflers. (got to get a life) I have noticed some cars with two small pipe exiting the muffler. I wonder what effect this would have on sound and rpm's verses one small pipe or one large pipe?
 
Bobby
If the tubes were servicing different chambers inside the muffler, so as to split the pulses further, then, I think there would be an advantage. Possibly even better with 4 smaller tubes
fed from different chambers, and of differing lengths. My race muffler keeps it under 100 dB but that is not enough to live with for very long. It has a 4" ID and is just a big steel pack looking thing. Not quiet enough to use even earplug type radios.
 
Lynn E. Hanover 
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