X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao106.cox.net ([68.230.241.40] verified) by logan.com (CommuniGate Pro SMTP 5.2.11) with ESMTP id 3431148 for flyrotary@lancaironline.net; Sat, 17 Jan 2009 11:30:51 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.40; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmmtao106.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20090117163008.HIFN12540.fed1rmmtao106.cox.net@fed1rmimpo03.cox.net> for ; Sat, 17 Jan 2009 11:30:08 -0500 Received: from wills ([68.105.85.56]) by fed1rmimpo03.cox.net with bizsmtp id 4gW61b0011CvZmk04gW8KP; Sat, 17 Jan 2009 11:30:08 -0500 X-Authority-Analysis: v=1.0 c=1 a=BQK-xGKPAAAA:8 a=Gf_LtgOTSl3CzgIhJ0oA:9 a=Rzxu4Vf_rBhjetFDSe8TCnYfL2kA:4 a=uL3qOuNcMWcA:10 a=NyTRPpSuRbJFJny03M0A:9 a=b71o_QXFWYW8z4pHnpcA:7 a=8B0z42-Gv3ZPC8nU_38o_N93hnIA:4 a=MSl-tDqOz04A:10 a=EzXvWhQp4_cA:10 a=AfD3MYMu9mQA:10 X-CM-Score: 0.00 Message-ID: <006601c978c0$dab9e680$38556944@wills> From: "Mike Wills" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] DNA Muffler Date: Sat, 17 Jan 2009 08:30:05 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0063_01C9787D.CC481150" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 This is a multi-part message in MIME format. ------=_NextPart_000_0063_01C9787D.CC481150 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hope this turns out to be a good choice. A functional off the shelf = muffler that holds up would be great. The website says there's a dealer = just a couple miles away - might ride down today and see if they stock = it. What muffler did you order Mark, the race series? With what = inlet/outlet? Anyone have any idea what B2 stainless is? Mike Wills RV-4 N144MW ----- Original Message -----=20 From: Mark Steitle=20 To: Rotary motors in aircraft=20 Sent: Friday, January 16, 2009 6:05 AM Subject: [FlyRotary] DNA Muffler 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. =20 Mark S. ------=_NextPart_000_0063_01C9787D.CC481150 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hope this turns out to be a good = choice. A=20 functional off the shelf muffler that holds up would be great. The = website says=20 there's a dealer just a couple miles away - might ride down today and = see if=20 they stock it. What muffler did you order Mark, the race series? With = what=20 inlet/outlet?

Anyone have any idea what B2 stainless=20 is?

Mike Wills

RV-4 N144MW

----- Original Message -----
From:=20 Mark = Steitle=20
To: Rotary motors in = aircraft

Sent: Friday, January 16, 2009 = 6:05=20 AM

Subject: [FlyRotary] DNA = Muffler

Does anyone on the list have any real-life rotary = experience=20 with the DNA Gen II muffler (http://www.dnamuffl= ers.com/DNA/main_DNA.html)? It is an interesting = design in=20 that it has no packing material to burn out. Instead, it = utilizes=20 ladder-rungs, which they call "internal sound diffusers", which = resemble=20 a chain of DNA down through the center of the muffler body, which is = made of=20 304 SS. Their web site claims that the racers use them with = great=20 success. From speaking with a sales rep, they claim there the = rotary=20 crowd uses them too. I'm considering purchasing one of their = FULL=20 THROTTLE COLLECTOR mufflers (P/N 1040), but thought I would = check to see=20 if anyone else has used this style muffler. This muffler has a = 3"=20 inlet/outlet with a 4" body. So it is compact enough to fit=20 inside my cowl. My exhaust header has a 3" swivel joint, so = it=20 should be a good fit.

Mark S.

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