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Message-ID: <5cf132c0901080516k175dc03cgcc4a64d02bc1ec45@mail.gmail.com>
Date: Thu, 8 Jan 2009 07:16:43 -0600
From: "Mark Steitle" <msteitle@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Muffler Design
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Mike,

The spiral insert on my Moroso style muffler was made of SS and held up
pretty well.  The problem was the method of attaching the spiral insert
inside the down pipe.  The exhaust would melt regular AN hardware.  Just
some things to think about.

One thing I noticed when I installed the Hushpower II was that the exhaust
tone was lower.  Whether or not that is a good thing, I don't know, just
thought it might be of interest to someone.
Mark S.
On Wed, Jan 7, 2009 at 9:29 PM, Mike Wills <rv-4mike@cox.net> wrote:

>  My current (ineffective) muffler is a modified copy of the Moroso. Mine
> differs in that the inner tube is larger than Moroso makes them - I was
> afraid the small tube they use would prove to restrictive. Maybe a mistake.
> Oh, the other difference is mine is made of Inconel (got a killer deal on
> it).
>
> Mike Wills
>
> ----- Original Message -----
> *From:* John Downing <downing.j@sbcglobal.net>
> *To:* Rotary motors in aircraft <flyrotary@lancaironline.net>
> *Sent:* Wednesday, January 07, 2009 10:38 AM
> *Subject:* [FlyRotary] Muffler Design
>
> Moroso makes a spiral flow muffler, something on the design that Ed had.
> The only thing is that it doesn't come in SS.  An internal picture is show
> in Jeg's hp catalog.  JohnD
>
>

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<div>Mike, </div>
<div>&nbsp;</div>
<div>The spiral insert&nbsp;on my Moroso style&nbsp;muffler was made of SS and held up pretty well.&nbsp; The problem was the method of attaching the spiral insert inside the down pipe.&nbsp; The exhaust would melt regular AN hardware.&nbsp; Just some things to think about.</div>

<div>&nbsp;</div>
<div>One thing I noticed when I installed the Hushpower II was that the exhaust tone was lower.&nbsp; Whether or not that is a good thing, I don&#39;t know, just thought it might be of interest to someone.<br></div>
<div>Mark S.<br></div>
<div class="gmail_quote">On Wed, Jan 7, 2009 at 9:29 PM, Mike Wills <span dir="ltr">&lt;<a href="mailto:rv-4mike@cox.net">rv-4mike@cox.net</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div bgcolor="#ffffff">
<div><font face="Arial" size="2">My current (ineffective) muffler is a modified copy of the Moroso. Mine differs in that the inner tube is larger than Moroso makes them - I was afraid the small tube they use would prove to restrictive. Maybe a mistake. Oh, the other difference is mine is made of Inconel (got a killer deal on it).</font></div>

<div><font face="Arial" size="2"></font>&nbsp;</div>
<div><font face="Arial" size="2">Mike Wills</font></div>
<blockquote dir="ltr" style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="BACKGROUND: #e4e4e4; FONT: 10pt arial"><b>From:</b> <a title="downing.j@sbcglobal.net" href="mailto:downing.j@sbcglobal.net" target="_blank">John Downing</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a title="flyrotary@lancaironline.net" href="mailto:flyrotary@lancaironline.net" target="_blank">Rotary motors in aircraft</a> </div>
<div style="FONT: 10pt arial"><b>Sent:</b> Wednesday, January 07, 2009 10:38 AM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> [FlyRotary] Muffler Design</div>
<div><br></div>
<div><font face="Arial" size="2">Moroso makes a spiral flow muffler, something on the design that Ed had.&nbsp; The only thing is that it doesn&#39;t come in SS.&nbsp; An internal picture is show in Jeg&#39;s hp catalog.&nbsp; JohnD</font></div>
</blockquote></div></blockquote></div><br>

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