X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=H+OlPNQi c=1 sm=1 tr=0 a=0mq6FIRulfhJeCy69GKncQ==:117 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=x7bEGLp0ZPQA:10 a=oSMvVwY2MYMA:10 a=MeAgGD-zjQ4A:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=7g1VtSJxAAAA:8 a=eA-i02hVtl9qb3NqZKIA:9 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=23mzUNEM2c2WXa-pvDcA:9 a=kID10cFXhbiu7tiL:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "David Leonard wdleonard@gmail.com" Received: from mail-qk1-f179.google.com ([209.85.222.179] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 13191430 for flyrotary@lancaironline.net; Mon, 18 Nov 2019 20:27:44 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.222.179; envelope-from=wdleonard@gmail.com Received: by mail-qk1-f179.google.com with SMTP id z23so16344789qkj.10 for ; Mon, 18 Nov 2019 17:27:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=CSa7Aj0BHAC5CFn8sI7gwxpJk5xNx2XUOwgNetOlFp8=; b=bLC8K3JHDmLTL79HBAA+V6wN4OTkaNiXIZDtYeHLHMQhNxDXsXtNf3OglQ/vF2ZwAn fnqPElk2IzJP45jbKOsoqCn6U3euKsVLA03kLQ9r17AhacbWYOx8mjhmkc43Alwct7i9 KddFZocs8rLCJ3OAvlX7GfKzLAb+VeDJtf1XB5aLfa+uyyyInxu/gtR4iIizBdKZ+9qB INnQR2yHluYRcsRzyKAGAJtvTkm0GDSOTYbkCRbXicjoRxw0vC7kdHNNZmjJQ8MGNcea 1j36z42AE9P56NqX03LZFM9FOLat2dU5GIYHNUI4f+weRocmULQA2DXeeSs+dS2DqOLb nSlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=CSa7Aj0BHAC5CFn8sI7gwxpJk5xNx2XUOwgNetOlFp8=; b=L3QkS1XNihW9xl3KgPcR3Wr45/S30KJFOACKyDHIkcykcsZ541VkGOWgAjkYXp0mkG HsmCZ3YrkexRsVOLkWqCTxIjmA/uOxrQqjIOxrT9t1BfEY08dbg5mm6u+K3MIwrdd20u YLB/a9UiUMUy2iXkbWdSKx7nmrhjt+NuYl7nxaaA5tys592HsLWKMlK1yHnlDB7HcWrO +2dEzU9KEs/SQkN2yydnuTxW8sLhJMywNR6dBkcIJZk1IxF+wgIlG+pFjz86mQ2q54Ng R4AIk6qfpTS6VUeM9DbOmPmnCQLCLDodmLjXngBoCIqaD83Bo2pcrrFIyrs8OPZEEgup xyQg== X-Gm-Message-State: APjAAAXmY3MwvCtV0oR0IIrxTFc4slYM+35D8lIoYBW+wRHAYPHGiVzk YaIL/fsvPSRqFtyWbnxnQcMbhzLoqVX/oBotYf3dYh0I X-Google-Smtp-Source: APXvYqyRcBZXsiy+qRfgjoUT5Lr1nBpYIRu2Sqk7oZWqYjPo1u99xpU2lpLRJezJLxvzI+6dPb5lHNh4YA9OFzSw6H0= X-Received: by 2002:a37:a416:: with SMTP id n22mr26664548qke.96.1574126847849; Mon, 18 Nov 2019 17:27:27 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Mon, 18 Nov 2019 17:27:14 -0800 Message-ID: Subject: Re: [FlyRotary] Mufflers To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="00000000000098f7d70597a8f798" --00000000000098f7d70597a8f798 Content-Type: text/plain; charset="UTF-8" Spintech was the quietest I used,but it clearly robbed me of LOTS of power, so I took it off. Flowmaster worked second best, but only for a couple of hours until all the packing fell out. Removed that one too. Running a long pipe to behind the seating area is acceptable. Thinking about trying multiple 1/8 holes like someone else described. Also tried a race muffler from Burns Stainless with little effect. Dave Leonard On Mon, Nov 18, 2019, 1:20 PM Neil Unger 12348ung@gmail.com < flyrotary@lancaironline.net> wrote: > Attn Todd Bartrim, > > When in doubt check the > instruction book!! I finally checked the archives to find that Todd you > are way in front of me. I am definitely going to put a turbo on my > renesis, but am still looking for a muffler. Depending on what Lynn > suggestes, but your experience with the spintech or your latest version > is appreciated. Do you have any tests with a decibel meter? My exhaust > noise is just too loud, fine for me but passengers do not exactly que up > for another ride. > > So design starts all over again, but I do have another engine to play > with to keep mine in the air while I experiment. Here again Todd you > have the electric water pump --- thoughts? > > Neil. > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > --00000000000098f7d70597a8f798 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Spintech was the quietest I used,but it clearly robbed me= of LOTS of power, so I took it off.=C2=A0 Flowmaster worked second best, b= ut only for a couple=C2=A0of hours until all the packing fell out.=C2=A0 Re= moved that one too.=C2=A0 Running a long pipe to behind the seating area is= acceptable.=C2=A0 Thinking about trying multiple 1/8 holes like someone el= se described.

Also tried a rac= e muffler from Burns Stainless with little effect.
<= br>
Dave Leonard

On Mon, Nov 18, 2019, 1:20 PM = Neil Unger 12348ung@gmail.com <= ;flyrotary@lancaironline.net= > wrote:
Attn Todd Bartrim,<= br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 When in doubt check the
instruction book!!=C2=A0 I finally checked the archives to find that Todd y= ou
are way in front of me.=C2=A0 I am definitely going to put a turbo on my renesis, but am still looking for a muffler. Depending on what Lynn
suggestes, but your experience with the spintech or your latest version is appreciated.=C2=A0 Do you have any tests with a decibel meter?=C2=A0 My = exhaust
noise is just too loud, fine for me but passengers do not exactly que up for another ride.

So design starts all over again, but I do have another engine to play
with to keep mine in the air while I experiment.=C2=A0=C2=A0=C2=A0 Here aga= in Todd you
have the electric water pump --- thoughts?

Neil.


--
Homepage:=C2=A0 http://www.flyrotary.com/
Archive and UnSub:=C2=A0 =C2=A0= http://mail.lancaironline.net:81/lists/flyrotary/List.html
--00000000000098f7d70597a8f798--