X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m16.mx.aol.com ([64.12.138.206] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 1001038 for flyrotary@lancaironline.net; Tue, 28 Feb 2006 07:40:14 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.138.206; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m16.mx.aol.com (mail_out_v38_r7.3.) id q.24f.726314a (3858) for ; Tue, 28 Feb 2006 07:39:22 -0500 (EST) From: Lehanover@aol.com Message-ID: <24f.726314a.31359e7a@aol.com> Date: Tue, 28 Feb 2006 07:39:22 EST Subject: Re: [FlyRotary] Re: Exhaust Blowout To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1141130362" X-Mailer: 9.0 SE for Windows sub 5022 X-Spam-Flag: NO -------------------------------1141130362 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit 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 -------------------------------1141130362 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 2/27/2006 9:30:42 PM Eastern Standard Time,=20 unicorn@gdsys.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>
Driving down the road observing mufflers. (got to= get a=20 life) I have noticed some cars with two small pipe exiting the muffler. I=20 wonder what effect this would have on sound and rpm's verses one small pip= e or=20 one large pipe?
 
Bobby
If the tubes were servicing different chambers inside the muffler, so a= s to=20 split the pulses further, then, I think there would be an advantage. Possibl= y=20 even better with 4 smaller tubes
fed from different chambers, and of differing lengths. My race muffler=20 keeps it under 100 dB but that is not enough to live with for very long. It=20= has=20 a 4" ID and is just a big steel pack looking thing. Not quiet enough to use=20= even=20 earplug type radios.
 
Lynn E. Hanover 
-------------------------------1141130362--