X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from rv-out-0506.google.com ([209.85.198.228] verified) by logan.com (CommuniGate Pro SMTP 5.2.11) with ESMTP id 3429248 for flyrotary@lancaironline.net; Fri, 16 Jan 2009 09:05:57 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.198.228; envelope-from=msteitle@gmail.com Received: by rv-out-0506.google.com with SMTP id f6so1892734rvb.7 for ; Fri, 16 Jan 2009 06:05:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=gqCVYRytO1Hk8DPxcWtB/yE3JBbUboY5KUa7wxZK7XA=; b=stkUjMOC6Wr8y61rJ/AkNF8VLQnAJOevD8qHKvdWoj9FuQLe8+gYPzQdAlmv2mV+oZ iWiXfUTcZ33vbux6AwD6laoDG/gAc+QeA9Hs26VfIt3H8Y5VhXnkgM05TImGCu+WlR+/ 89WcOXdimE6goLDwJPTJw28zMu0Rhqssa2OHM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=jMIVWgYfmbZ62A0FIpAopFYqryYgNfu6YOCaYZoWdzpwKI2tgj9BlvWydlVY7MRgjj p5QVFdcnCn64KuDPoCy5rwbudSL4jP5B9IBGhAiwB+Cnu0ZFkeVUbO6jeZusmZYhCkQo GB7wEjwzablKCnd5gM+I8qmA9KIqI8fuuFMVk= MIME-Version: 1.0 Received: by 10.141.175.5 with SMTP id c5mr1232326rvp.243.1232114720096; Fri, 16 Jan 2009 06:05:20 -0800 (PST) Date: Fri, 16 Jan 2009 08:05:20 -0600 Message-ID: <5cf132c0901160605y3dfb5552h252a5f41aa08edf1@mail.gmail.com> Subject: DNA Muffler From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=000e0cd149d436c0e704609a1052 --000e0cd149d436c0e704609a1052 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Does anyone on the list have any real-life rotary experience with the DNA Gen II muffler (http://www.dnamufflers.com/DNA/main_DNA.html)? It is an interesting design in that it has no packing material to burn out. Instead, it utilizes ladder-rungs, which they call "internal sound diffusers", which resemble a chain of DNA down through the center of the muffler body, which is made of 304 SS. Their web site claims that the racers use them with great success. From speaking with a sales rep, they claim there the rotary crowd uses them too. I'm considering purchasing one of their FULL THROTTLE COLLECTOR mufflers (P/N 1040), but thought I would check to see if anyone else has used this style muffler. This muffler has a 3" inlet/outlet with a 4" body. So it is compact enough to fit inside my cowl. My exhaust header has a 3" swivel joint, so it should be a good fit. Mark S. --000e0cd149d436c0e704609a1052 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Does anyone on the list have any real-life rotary experience= with the DNA Gen II muffler (http://www.dnamufflers.com/DNA/main_DNA.html)?  It is an interesting design in t= hat it has no packing material to burn out.  Instead, it utilizes ladd= er-rungs, which they call "internal sound diffusers", which = resemble a chain of DNA down through the center of the muffler body, which = is made of 304 SS.  Their web site claims that the racers use them wit= h great success.  From speaking with a sales rep, they claim there the= rotary crowd uses them too.  I'm considering purchasing one of th= eir FULL THROTTLE COLLECTOR mufflers (P/N 1040), but thought I would check&= nbsp;to see if anyone else has used this style muffler.  This muffler = has a 3" inlet/outlet with a 4" body.  So it is compact enou= gh to fit inside my cowl.  My exhaust header has a 3" swivel= joint, so it should be a good fit. 
 
Mark S.
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