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Date: Sat, 17 Jan 2009 20:04:50 -0600
Message-ID: <5cf132c0901171804u3d656500qda3834ffbbf05a63@mail.gmail.com>
Subject: Re: [FlyRotary] Re: DNA Muffler
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=000e0cd1a8223719ef0460b83b2b

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Mike,

If you go check out the DNA muffler, and please post a report for the
group.  Be sure that you're looking at the Gen II and not the Gen I.  I'm
told there is a big difference in the two.  The Gen II's are much more
durable, or so I'm told.

I'm considering the 1040 because of the slimmer 4" body.

Mark



On Sat, Jan 17, 2009 at 10:30 AM, Mike Wills <rv-4mike@cox.net> wrote:

>  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 -----
> *From:* Mark Steitle <msteitle@gmail.com>
> *To:* Rotary motors in aircraft <flyrotary@lancaironline.net>
> *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<http://www.dnamufflers.com/>)?
> 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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Mike, <br><br>If you go check out the DNA muffler, and please post a report=
 for the group.&nbsp; Be sure that you&#39;re looking at the Gen II and not=
 the Gen I.&nbsp; I&#39;m told there is a big difference in the two.&nbsp; =
The Gen II&#39;s are much more durable, or so I&#39;m told.<br>
<br>I&#39;m considering the 1040 because of the slimmer 4&quot; body. <br><=
br>Mark<br><br><br><br><div class=3D"gmail_quote">On Sat, Jan 17, 2009 at 1=
0:30 AM, Mike Wills <span dir=3D"ltr">&lt;<a href=3D"mailto:rv-4mike@cox.ne=
t">rv-4mike@cox.net</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">





<div bgcolor=3D"#ffffff">
<div><font face=3D"Arial" size=3D"2">Hope this turns out to be a good choic=
e. A=20
functional off the shelf muffler that holds up would be great. The website =
says=20
there&#39;s a dealer just a couple miles away - might ride down today and s=
ee if=20
they stock it. What muffler did you order Mark, the race series? With what=
=20
inlet/outlet?</font></div>
<div><font face=3D"Arial" size=3D"2"></font>&nbsp;</div>
<div><font face=3D"Arial" size=3D"2">Anyone have any idea what B2 stainless=
=20
is?</font></div>
<div><font face=3D"Arial" size=3D"2"></font>&nbsp;</div>
<div><font face=3D"Arial" size=3D"2">Mike Wills</font></div>
<div><font face=3D"Arial" size=3D"2">RV-4 N144MW</font></div>
<blockquote dir=3D"ltr" style=3D"border-left: 2px solid rgb(0, 0, 0); paddi=
ng-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">
  <div style=3D"font-family: arial; font-style: normal; font-variant: norma=
l; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adj=
ust: none; font-stretch: normal;">----- Original Message ----- </div>
  <div style=3D"background: rgb(228, 228, 228) none repeat scroll 0% 0%; -m=
oz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -mo=
z-background-inline-policy: -moz-initial; font-family: arial; font-style: n=
ormal; font-variant: normal; font-weight: normal; font-size: 10pt; line-hei=
ght: normal; font-size-adjust: none; font-stretch: normal;">
<b>From:</b>=20
  <a title=3D"msteitle@gmail.com" href=3D"mailto:msteitle@gmail.com" target=
=3D"_blank">Mark Steitle</a>=20
  </div>
  <div style=3D"font-family: arial; font-style: normal; font-variant: norma=
l; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adj=
ust: none; font-stretch: normal;"><b>To:</b> <a title=3D"flyrotary@lancairo=
nline.net" href=3D"mailto:flyrotary@lancaironline.net" target=3D"_blank">Ro=
tary motors in aircraft</a> </div>

  <div style=3D"font-family: arial; font-style: normal; font-variant: norma=
l; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adj=
ust: none; font-stretch: normal;"><b>Sent:</b> Friday, January 16, 2009 6:0=
5=20
  AM</div>
  <div style=3D"font-family: arial; font-style: normal; font-variant: norma=
l; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adj=
ust: none; font-stretch: normal;"><b>Subject:</b> [FlyRotary] DNA Muffler</=
div>

  <div><br></div>
  <div>Does anyone on the list&nbsp;have any&nbsp;real-life rotary experien=
ce=20
  with&nbsp;the DNA Gen II muffler (<a href=3D"http://www.dnamufflers.com/D=
NA/main_DNA.html" target=3D"_blank">http://www.dnamufflers.com/DNA/main_DNA=
.html</a><a href=3D"http://www.dnamufflers.com/" target=3D"_blank"></a>)?&n=
bsp; It is an interesting design in=20
  that it has no packing material to burn out.&nbsp; Instead, it utilizes=
=20
  ladder-rungs, which they call &quot;internal sound diffusers&quot;,&nbsp;=
which resemble=20
  a chain of DNA down through the center of the muffler body, which is made=
 of=20
  304 SS.&nbsp; Their web site claims that the racers use them with great=
=20
  success.&nbsp; From speaking with a sales rep, they claim there the rotar=
y=20
  crowd uses them too.&nbsp; I&#39;m considering purchasing one of their FU=
LL=20
  THROTTLE COLLECTOR mufflers (P/N 1040), but thought I would check&nbsp;to=
 see=20
  if anyone else has used this style muffler.&nbsp; This muffler has a 3&qu=
ot;=20
  inlet/outlet with a 4&quot; body.&nbsp; So it is compact enough to fit=20
  inside&nbsp;my cowl.&nbsp; My exhaust header has a 3&quot; swivel joint, =
so it=20
  should be a good fit.&nbsp; </div>
  <div>&nbsp;</div>
  <div>Mark S.</div></blockquote></div>
</blockquote></div><br>

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