X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mxo5.broadbandsupport.net ([209.55.3.85] verified) by logan.com (CommuniGate Pro SMTP 5.2.11) with ESMTP id 3432853 for flyrotary@lancaironline.net; Sun, 18 Jan 2009 19:05:26 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.55.3.85; envelope-from=candtmallory@cebridge.net Return-Path: Received: from [24.32.40.251] ([24.32.40.251:52903] helo=home) by mxo5.broadbandsupport.net (ecelerity 2.1.1.23 r(18304)) with ESMTP id 5D/C7-18351-B93C3794 for ; Sun, 18 Jan 2009 19:04:44 -0500 From: "The Mallorys" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: DNA Muffler Date: Sun, 18 Jan 2009 18:04:39 -0600 Message-ID: <000001c979c9$85d47310$917d5930$@net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C97997.3B3A0310" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acl4+VoQu7FmjYZhSK2cFqnotImRWQA0CBbA Content-Language: en-us This is a multipart message in MIME format. ------=_NextPart_000_0001_01C97997.3B3A0310 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Dennis, =20 Do You have some pictures? This is the same setup I am installing. =20 Chris =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On = Behalf Of Dennis Haverlah Sent: Saturday, January 17, 2009 5:14 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: DNA Muffler =20 The current easy, cheap and quiet solution is to use the RX-8 Renesis = engine with the much tamer exhaust, use the RX-8 exhaust manifold, weld = on a 180 deg. turn and couple it to the Hushpower II Resonator. Fits = under the cowl and I have 130 hr. flying without a problem. Dennis H. hoursaway1@comcast.net wrote: I was thinking (don't tell my wife she will just find more for me to do) = we are making efforts to find an exhaust/muff. sys. that lasts "a long = time" well like I said , was thinking, about other aircraft I have = owned/flown & the maint. involved with the exhaust sys., none of them = went longer than 200-300 hrs. before work/repairs had to be performed, = sounds like we are already there. I'm using the Hushpower II, but do not = have any helpfull hints have 12 hrs on eng. run so far, would love to = here of someone finding the golden goose here & hope no one gives up = prematurly including myself, just thought I'd throw the that into the = mix to say??? It is -10 deg.F. here in MI, I need to get dressed & get = my butt to the airport & finish the gearleg fairings, but I will have to = go outside to do that, dam. David R Cook RV6A ROTARY (2 feet snow = in front of the hanger door, at least it is heated, EAA builders hanger) ----- Original Message ----- From: "Mike Wills" To: "Rotary motors in aircraft" = Sent: Saturday, January 17, 2009 11:32:07 AM GMT -05:00 US/Canada = Eastern Subject: [FlyRotary] Re: DNA Muffler Mark, =20 Should have read more thoroughly - I see you listed the part number for = what you ordered. My bad. Still curious about B2? =20 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 =20 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 =20 Mark S. ------=_NextPart_000_0001_01C97997.3B3A0310 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Dennis,

 

Do You have some pictures?=C2=A0 This is the same setup I = am installing.

 

Chris

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dennis = Haverlah
Sent: Saturday, January 17, 2009 5:14 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: DNA Muffler

 

The current easy, cheap and quiet solution is to = use the RX-8 Renesis engine with the much tamer exhaust, use the RX-8 = exhaust  manifold, weld on a 180 deg. turn and couple it to the Hushpower II Resonator.  Fits under the cowl and I have 130 hr. flying without a problem.

Dennis H.

hoursaway1@comcast.net = wrote:

I was thinking (don't tell my wife she will just find more for me to = do)  we are making efforts to find an exhaust/muff. sys. that lasts =  "a long time"  well like I said , was thinking, about other aircraft I have owned/flown = & the maint. involved with the exhaust sys., none of them went longer than 200-300 hrs. before work/repairs had to be performed, sounds like we are already there. I'm using the Hushpower II, but do not have any helpfull = hints have 12 hrs on eng. run so far, would love to here of someone finding = the golden goose here & hope no one gives up prematurly including = myself, just thought I'd throw the that into the mix to say???  It is -10 deg.F. = here in MI, I need to get dressed & get my butt to the airport & = finish the gearleg fairings, but I will have to go outside to do that, dam.    David R Cook  RV6A  ROTARY  (2 = feet snow in front of the hanger door, at least it is heated, EAA builders = hanger)
----- Original Message -----
From: "Mike Wills" <rv-4mike@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.n= et>
Sent: Saturday, January 17, 2009 11:32:07 AM GMT -05:00 US/Canada = Eastern
Subject: [FlyRotary] Re: DNA Muffler

Mark,<= span style=3D'font-family:"Arial","sans-serif"'>

 

Should have read more thoroughly - I see you listed the part number for what = you ordered. My bad. Still curious about B2?

 

Mike Wills

RV-4 N144MW

=

----- Original Message -----

From: Mark Steitle =

Sent:<= /b> 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. 

 

Mark S.

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