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Date: Thu, 9 Jul 2009 19:38:46 -0700
Message-ID: <1c23473f0907091938h60d2fdf7l3897227ed205e269@mail.gmail.com>
Subject: Flowmaster Hushpower Report
From: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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For the last couple hundred hours I have been using a Flowmaster Hushpower
II muffler.  Also used by Tracy and some others I think.  It is done.  The
outside held up wery well, but I reciently removed it and discovered that
the insides have entirely disientigrated.  Whatever they used as packing has
turned to a heavy clay-like substance ratteling around in the bottom.  She
steel mesh is in pieces.  I had been thinking that the plane was not as
quiet as it seemed 2 years ago..  go figure.

So I was thinking about one of the DNA Mufflers someone mentioned.  They
seemed nice because there is no packing, just steel dividers.
Unfortunately, it is a little to big around to fit in my current set
up.   Instead, I ordered this muffler that also has steel innards but no
packing:
http://www.moroso.com/catalog/categorydisplay.asp?catcode=35054

It is nice because it is going to be smaller and lighter than the flowmaster
(or the DNA), as well as less expensive - even the SS version that I
ordered.

Will report back in 2 years on its performance  :-)

-- 
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net

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<div>For the last couple hundred hours I have been using a Flowmaster Hushp=
ower II muffler.=A0 Also used by Tracy and some others I think.=A0 It is do=
ne.=A0 The outside held up wery well, but I reciently removed it and discov=
ered that the insides have entirely disientigrated.=A0 Whatever they used a=
s packing=A0has turned to a heavy clay-like substance ratteling around in t=
he bottom.=A0=A0She steel mesh is in pieces.=A0 I had been thinking that th=
e plane was not as quiet as it seemed 2 years ago..=A0 go figure.</div>

<div>=A0</div>
<div>So I was thinking about one of the DNA Mufflers someone mentioned.=A0 =
They seemed nice because there is no packing,=A0just steel dividers.=A0 Unf=
ortunately, it is a little to big around to fit in my current set up.=A0=A0=
=A0Instead, I ordered this muffler that also has steel innards but no packi=
ng:</div>

<div><a href=3D"http://www.moroso.com/catalog/categorydisplay.asp?catcode=
=3D35054">http://www.moroso.com/catalog/categorydisplay.asp?catcode=3D35054=
</a></div>
<div>=A0</div>
<div>It is nice because it is going to be smaller and lighter than the flow=
master (or the DNA), as well as less expensive - even the SS version that I=
 ordered.</div>
<div>=A0</div>
<div>Will report back in 2 years=A0on its performance=A0 :-)<br clear=3D"al=
l"></div>
<div></div><br>-- <br>David Leonard<br><br>Turbo Rotary RV-6 N4VY<br><a hre=
f=3D"http://N4VY.RotaryRoster.net">http://N4VY.RotaryRoster.net</a><br><a h=
ref=3D"http://RotaryRoster.net">http://RotaryRoster.net</a><br>

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