X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtpauth03.mail.atl.earthlink.net ([209.86.89.63] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTP id 1027428 for flyrotary@lancaironline.net; Thu, 30 Jun 2005 14:44:33 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.86.89.63; envelope-from=jerryhey@earthlink.net Received: from [71.2.107.92] (helo=earthlink.net) by smtpauth03.mail.atl.earthlink.net with asmtp (Exim 4.34) id 1Do40p-0007EE-I4 for flyrotary@lancaironline.net; Thu, 30 Jun 2005 14:43:47 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=simple; s=test1; d=earthlink.net; h=Date:Subject:Content-Type:Mime-Version:From:To:In-Reply-To:Message-Id:X-Mailer; b=jSdtSmiMKoxHtP3Oax1+mOkSvmTbEEn69Ha6TOKx6STlKwsU7l1DHH3gTZvUCh4T; Date: Thu, 30 Jun 2005 13:46:02 -0500 Subject: Re: [FlyRotary] Re: P Ports working on dyno Content-Type: multipart/alternative; boundary=Apple-Mail-8-116041825 Mime-Version: 1.0 (Apple Message framework v552) From: Jerry Hey To: "Rotary motors in aircraft" In-Reply-To: Message-Id: <35278E28-E997-11D9-91E7-0003931B0C7A@earthlink.net> X-Mailer: Apple Mail (2.552) X-ELNK-Trace: 8104856d7830ec6b1aa676d7e74259b7b3291a7d08dfec79bfd9a77584ecbda5c5b6770b8d4c3d37350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 71.2.107.92 --Apple-Mail-8-116041825 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1; format=flowed Bill, FWIW, the VAM muffler built by Ed did not have the center tube. =20= It was just a hollow cylinder with a two inch hole in either end. We=20= could not figure out how it was supposed to work but discussions about=20= it soon led to the question "what if we run a tube through it." At=20 that point we thought we had really come up with something that might=20 work. ...The rest of the story you already know. On Thursday, June 30, 2005, at 01:32 PM, wrjjrs@aol.com wrote: > Jerry, Yes it was a discussion of a occurance on the "other list".=20 > Prior to my joining Flyrotary I did a muffler layout to reduce the=20 > temp of the exit gasses. It was a tangential design with a center=20 > tube. Jerry's system is an outgrowth of the original layout. (Totally=20= > with my agreement)=A0Ed Kleppis did a muffler from the original=20 > picture,=A0and=A0took it to=A0Tracy's gathering to try it out. It = didn't fit=20 > on Tracys test stand with the tail pipe so they ran it without it. PL=20= > then said it's LOUD. Of course it would be without a tail pipe.=20 > It=A0might have been with a tail pipe but we won't know. I still think=20= > the idea has merrit but several=A0areas are kinda critical. I will=20 > attach=A0an old jpeg. If anybody is interested I go over the = specifics.=20 > BTW the layout is for a 20B of course that's =A0why the 3 holes! The=20= > hole in front needs a inlet or blast tube for the cool air feed. > Bill Jepson > =A0 > -----Original Message----- > From: Russell Duffy <13brv3@bellsouth.net> > To: Rotary motors in aircraft > Sent: Thu, 30 Jun 2005 12:57:07 -0500 > Subject: [FlyRotary] Re: P Ports working on dyno > > .AOLPlainTextBody { margin: 0px; font-family: Tahoma, Verdana, Arial,=20= > Sans-Serif; font-size: 12px; color: #000; background-color: #fff; }=20 > .AOLPlainTextBody pre { font-size: 9pt; } .AOLInlineAttachment {=20 > margin: 10px; } .AOLAttachmentHeader { border-bottom: 2px solid=20 > #E9EAEB; background: #F9F9F9; } .AOLAttachmentHeader .Title { font:=20 > 11px Tahoma; font-weight: bold; color: #666666; background: #E9EAEB;=20= > padding: 3px 0px 1px 10px; } .AOLAttachmentHeader .FieldLabel { font:=20= > 11px Tahoma; font-weight: bold; color: #666666; padding: 1px 10px 1px=20= > 9px; } .AOLAttachmentHeader .FieldValue { font: 11px Tahoma; color:=20 > #333333; } > Bill, the muffler is "optically dense." The "tailpipe" cannot be seen=20= > by the exhaust ports. I wish Paul had tested a little more and given=20= > me more information. A number of people want this muffler but I have=20= > declined to build more until it could be tested properly. Even Paul is=20= > telling Bob White to change nothing until he hears it for himself. I=20= > need to finish my engine and put it on my own dyno. Jerry=A0 > =A0 > Hi Jerry, > =A0 > I've been trying=A0to follow this, but I think you guys must be=20 > referring to a post on the PL list.=A0 Did he just bolt it on and = listen=20 > to it, then take it off without actually doing a dyno pull on it?=A0=20= > That would be a bummer.=A0 > =A0 > If you're going to discuss it here, could you post=A0the whole message=20= > you're=A0commenting on, so the rest of us can follow=A0along?=A0 Of = course,=20 > you could also hold this discussion on the other list, or=A0at least=20= > "try" to :-)=A0=A0 > =A0 > Cheers, > Rusty > =A0 > =A0 > =A0 > Homepage: =20 > http://www.flyrotary.com/ >>> Archive: http://lancaironline.net/lists/flyrotary/List.html --Apple-Mail-8-116041825 Content-Transfer-Encoding: quoted-printable Content-Type: text/enriched; charset=ISO-8859-1 Bill, FWIW, the VAM muffler built by Ed did not have the center tube.=20= It was just a hollow cylinder with a two inch hole in either end. =20 We could not figure out how it was supposed to work but discussions about it soon led to the question "what if we run a tube through it." =20= At that point we thought we had really come up with something that might work. ...The rest of the story you already know.=20 On Thursday, June 30, 2005, at 01:32 PM, wrjjrs@aol.com wrote: Jerry, Yes it was a discussion of a occurance on the "other list". Prior to my joining Flyrotary I did a muffler layout to reduce the temp of the exit gasses. It was a tangential design with a center tube. Jerry's system is an outgrowth of the original layout. (Totally with my agreement)=A0Ed Kleppis did a muffler from the original picture,=A0and=A0took it to=A0Tracy's gathering to try it out. It didn't = fit on Tracys test stand with the tail pipe so they ran it without it. PL then said it's LOUD. Of course it would be without a tail pipe. It=A0might have been with a tail pipe but we won't know. I still think the idea has merrit but several=A0areas are kinda critical. I will attach=A0an old jpeg. If anybody is interested I go over the specifics. BTW the layout is for a 20B of course that's =A0why the 3 holes! The hole in front needs a inlet or blast tube for the cool air feed. Bill Jepson =A0 -----Original Message----- From: Russell Duffy <<13brv3@bellsouth.net> To: Rotary motors in aircraft < Sent: Thu, 30 Jun 2005 12:57:07 -0500 Subject: [FlyRotary] Re: P Ports working on dyno .AOLPlainTextBody { margin: 0px; font-family: Tahoma, Verdana, Arial, Sans-Serif; font-size: 12px; color: #000; background-color: #fff; } .AOLPlainTextBody pre { font-size: 9pt; } .AOLInlineAttachment { margin: 10px; } .AOLAttachmentHeader { border-bottom: 2px solid #E9EAEB; background: #F9F9F9; } .AOLAttachmentHeader .Title { font: 11px Tahoma; font-weight: bold; color: #666666; background: #E9EAEB; padding: 3px 0px 1px 10px; } .AOLAttachmentHeader .FieldLabel { font: 11px Tahoma; font-weight: bold; color: #666666; padding: 1px 10px 1px 9px; } .AOLAttachmentHeader .FieldValue { font: 11px Tahoma; color: #333333; } Bill, the muffler is "optically dense." The "tailpipe" cannot be seen by the exhaust ports. I wish Paul had tested a little more and given me more information. A number of people want this muffler but I have declined to build more until it could be tested properly. Even Paul is telling Bob White to change nothing until he hears it for himself. I need to finish my engine and put it on my own dyno. = JerryArialFFFF,0000,0000=A0= =A0 ArialFFFF,0000,0000Hi Jerry, =A0 ArialFFFF,0000,0000I've been trying=A0to follow this, but I think you guys must be referring to a post on the PL list.=A0 Did he just bolt it on and listen to it, then take it off without actually doing a dyno pull on it?=A0 That would be a bummer.=A0 =A0 ArialFFFF,0000,0000If you're going to discuss it here, could you post=A0the whole message you're=A0commenting on, so the rest of us can follow=A0along?=A0 Of = course, you could also hold this discussion on the other list, or=A0at least "try" to :-)=A0=A0 =A0 = ArialFFFF,0000,0000Cheers= , = ArialFFFF,0000,0000Rusty<= /color> =A0 =A0 =A0 << Homepage:=20 http://www.flyrotary.com/ Archive: =20 http://lancaironline.net/lists/flyrotary/List.html = --Apple-Mail-8-116041825--