X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "William Jepson wrjjrs@gmail.com" Received: from mail-ej1-f52.google.com ([209.85.218.52] verified) by logan.com (CommuniGate Pro SMTP 6.3.13) with ESMTPS id 1764444 for flyrotary@lancaironline.net; Sun, 29 Jan 2023 19:08:13 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.218.52; envelope-from=wrjjrs@gmail.com Received: by mail-ej1-f52.google.com with SMTP id k4so21942889eje.1 for ; Sun, 29 Jan 2023 16:08:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=6JPZw/7QlZePawxwDlrLMuRkPMJxZnTG8w0A84j00/o=; b=Giuvi/uy2f5YmZwHh5fZIv9tIZQ5lRHqXdgno1Id3UJpZMU60g6bG2QJHC48kFKTja jhOOvX4lBCBC3qhikrLcXupoQk5Mu82WiWPl1dE7aIGwLaO7+RjrFfY4UabgivIkd8t1 ejngnO5LPHGzL9jVq1PmzJzTJMrCPuCVhtTgsD3PrqXV3Rw60e9WPUnsprMrxgqsvKZ6 2u4mt4oPECcptmTMxISNK/PsOd95AcMyoQDx/XFC+gzR0Qk0ZQys0kStO3bJyr3wX9Pq ZKhs95lXPLpolATptz2NDekqmjnp039fcSpktVki/5+yaSl+wqfd45v4jYb8XqIaVyfE d26w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=6JPZw/7QlZePawxwDlrLMuRkPMJxZnTG8w0A84j00/o=; b=ysz337Gq62pGHs22BiU2gkX9hvjgK3R/Ieh5UQ5t8FVFPkRZxg0wX3KsVFZzDHdARE Z4HpRNf7JEn3rrVy9kPW3ILxQQ2VJ9AxaVeakUKoat+V26lWZPIHmISuIwVQjqKKx5VP OrVuRJdAstO2Jh/JTZpzefiYkO4c9MxK90fDBVcu5GhXOMiFJS/yS0yOE5tR2eNTkseO 4WDVjR8e+jREs7ZuCmmCN1cKQrw4iVO7NIZKfxbFELiGdjKnUj71Kcw7WXYurEWm89Ox qCYjl10iHKIjfhGoaQU7cXK7DhClQp0jyWTcQGbguTjMpCdw9d2T3eCKjGz2KPI0cUw/ 5xsA== X-Gm-Message-State: AFqh2kr/Z/UhuDtSXsd+XKi0Q8AOGVVXLQgGYXwI548j0nQe6Qyp4yjt m1BtgfWMHekAZOS9uavbYJKgpxj8ZgJAtD5DubpolgUs X-Google-Smtp-Source: AMrXdXtRiVbXRrovKlodNoyiL9hspZtRHAnfXtV4ejsQSaWeVKMMX7hLwQ6sgnS1t3j72itBeu12JOMCQJLegVgzNWQ= X-Received: by 2002:a17:906:3a5b:b0:870:baa6:676c with SMTP id a27-20020a1709063a5b00b00870baa6676cmr7235991ejf.132.1675037273299; Sun, 29 Jan 2023 16:07:53 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Sun, 29 Jan 2023 16:07:42 -0800 Message-ID: Subject: Re: [FlyRotary] Re: Racing Beat's "Power Pulse? Presilencer"??? To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000a9205105f3700109" --000000000000a9205105f3700109 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Never seen any packing product that would hold up for long. Ianetti (of ceramic tip seals) has a couple patents for mufflers. He wouldn=E2=80=99t s= ell them, only lease them to Mazda speed for the season. Do a patent search and you can find some good ideas for a starting point. Bill On Sun, Jan 29, 2023 at 3:12 PM Charlie England ceengland7@gmail.com < flyrotary@lancaironline.net> wrote: > 1st time I've seen it, but ... > > 'Constructed using a stainless-steel shell, interior core tube, and high > temperature stainless packing wool, ' > > If the packing will survive aircraft use, it will be a first. > > Charlie > Get BlueMail for Android > On Jan 29, 2023, at 5:03 PM, "Doug Lomheim rv9flyer13b@gmail.com" < > flyrotary@lancaironline.net> wrote: >> >> Group: >> >> I=E2=80=99m curious if anyone has ever experimented w/Racing Beat=E2=80= =99s Power Pulse >> Presilencer to quell the nasty roar from older 13B engines? >> >> I soon hope to begin work on my 1989 13B exhaust system, and I=E2=80=99m= already >> planning on a a belly mounted muffler of some type, but in reading the >> Racing Beat information concerning their =E2=80=9Cpre-silencer=E2=80=9D,= they make it >> sound like it is an effective way to tame the nasty supersonic pulses fr= om >> an older 13B, and thereby increase the longevity of the muffler unit. >> >> Any thoughts? >> >> Thx. >> >> Doug >> >> RV-9A / 13B >> > --000000000000a9205105f3700109 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Never seen any packing product that would hold up for lon= g. Ianetti (of ceramic tip seals) has a couple patents for mufflers. He wou= ldn=E2=80=99t sell them, only lease them to Mazda speed for the season. Do = a patent search and you can find some good ideas for a starting=C2=A0point.=
Bill

On Sun, Jan 29, 2023 at 3:12 PM Charlie En= gland ceengland7@gmail.com <= flyrotary@lancaironline.net<= /a>> wrote:
'Constructed using a stainless-steel shell, interior = core tube, and high temperature stainless packing wool,=C2=A0'

<= /div>
If the packing will survive aircraft use, it will be a fi= rst.

Charlie
On Jan 29, 2023, at 5:03 PM, "Doug Lomheim = rv9flyer13b@gmai= l.com" <flyrotary@lancaironline.net> wrote:
Group:

I=E2=80=99m curious if anyone has ever experimented w= /Racing Beat=E2=80=99s Power Pulse Presilencer to quell the nasty roar from= older 13B=C2=A0engines? =C2=A0

I soon hope to begin work on my 1989 13B exhaust system, and I=E2= =80=99m already planning on a a belly mounted muffler of some type, but in = reading the Racing Beat information concerning=C2=A0their=C2=A0=E2=80=9Cpre= -silencer=E2=80=9D, =C2=A0they make it sound like it is an=C2=A0effective= =C2=A0way to tame the nasty supersonic pulses from an older 13B, and thereb= y increase the=C2=A0longevity of the muffler unit. =C2=A0=C2=A0

Any=C2=A0thoughts? =C2=A0

= Thx.

Doug=C2=A0

RV-9A / 13B =C2=A0 =C2=A0=C2=A0
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