X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from ms-smtp-02.southeast.rr.com ([24.25.9.101] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2041928 for flyrotary@lancaironline.net; Sun, 13 May 2007 09:22:33 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-02.southeast.rr.com (8.13.6/8.13.6) with SMTP id l4DDLpbj018690 for ; Sun, 13 May 2007 09:21:52 -0400 (EDT) Message-ID: <000901c79561$e2b7a140$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Exhaust insert Date: Sun, 13 May 2007 09:23:24 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C79540.5B491430" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C79540.5B491430 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Joe, I have read articles that indicates the insert is indeed made of = very tough material - would just about have to be, to live in that = environment. Stories I have read indicated you could (with considerable = effort and carbide bit tools) grind out the insert. However, I would suggest that you could save yourself a lot of effort by = using turbo housings. I have ported in intakes, but shied away from = trying to port the exhaust as that is where the apex seal encounters its = toughest test - Hot exhaust gases across it and little support as the = normally supporting rotor housing wall is of course missing at the = exhaust port. But that is just my 0.02 worth Ed ----- Original Message -----=20 From: Joe Berki=20 To: Rotary motors in aircraft=20 Sent: Sunday, May 13, 2007 8:31 AM Subject: [FlyRotary] Exhaust insert What type of material is the insert for the exhaust port found in the = 2nd gen motors made from? Is it removable? How could one enlarge the = exhaust port? Do you just use a turbo housing? Thanks Joe Berki ------=_NextPart_000_0006_01C79540.5B491430 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Joe, I have read articles that indicates the = insert is=20 indeed made of very tough material - would just about have to be, to = live in=20 that environment.  Stories I have read indicated you could (with=20 considerable effort and carbide bit tools) grind out the = insert.
 
However, I would suggest that you could save = yourself a=20 lot of effort by using turbo housings.  I have ported in intakes, = but shied=20 away from trying to port the exhaust as that is where the apex seal = encounters=20 its toughest test - Hot exhaust gases across it and little support as = the=20 normally supporting rotor housing wall is of course missing at the = exhaust=20 port.
 
But that is just my 0.02 worth
 
Ed
----- Original Message -----
From:=20 Joe Berki=20
Sent: Sunday, May 13, 2007 8:31 = AM
Subject: [FlyRotary] Exhaust = insert

What type of material is the insert = for the=20 exhaust port found in the 2nd gen motors made from?  Is it=20 removable?  How could one enlarge the exhaust port?  Do you = just use=20 a turbo housing?  Thanks
 
Joe = Berki
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