X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 1042167 for flyrotary@lancaironline.net; Tue, 21 Mar 2006 23:35:55 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-025-165.carolina.res.rr.com [24.74.25.165]) by ms-smtp-03-eri0.southeast.rr.com (8.13.4/8.13.4) with SMTP id k2M4Z785005136 for ; Tue, 21 Mar 2006 23:35:10 -0500 (EST) Message-ID: <000701c64d69$b99b8600$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: plenum volume Date: Tue, 21 Mar 2006 23:33:09 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0004_01C64D3F.D00477F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0004_01C64D3F.D00477F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 'fraid no quick and easy answer on that, Chris. However here is a URL = http://www.grapeaperacing.com/GrapeApeRacing/tech/inductionsystems.pdf That provides some general guidelines on page 8 of the pdf. It may = provide some help. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com ----- Original Message -----=20 From: Dennis Haverlah=20 To: Rotary motors in aircraft=20 Sent: Tuesday, March 21, 2006 11:14 PM Subject: [FlyRotary] Re: plenum volume I've never heard of a magic number for the plenum volume. The one = I've constructed for my RX-8 is approximately 150 in cube. It is about = 4 inches wide, 2 1/2 in tall on average and 15 inches long. The is = measured from the throttle body to where the four runners leave the = plenum. The four runners are actually an original RX-8 intake cut off = just below the first rotary valve. Dennis H. the mallorys wrote:=20 Is there a magical number for the size of the plenum? Minimum or = maximum? I had heard something about 50% of the 1.5l for the engine, = but don't know if this applies to the rotary. Chris ------=_NextPart_000_0004_01C64D3F.D00477F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
'fraid no quick and easy answer on that, = Chris. =20 However here is a URL http://www.grapeaperacing.com/GrapeApeRacing/tech/inductionsystems= .pdf
 
That provides some general guidelines on page 8 = of the=20 pdf.  It may provide some help.
 
Ed
 
Ed Anderson
Rv-6A N494BW Rotary = Powered
Matthews,=20 NC
eanderson@carolina.rr.com
----- Original Message -----
From:=20 Dennis Haverlah
Sent: Tuesday, March 21, 2006 = 11:14=20 PM
Subject: [FlyRotary] Re: plenum = volume

I've never heard of a magic number for the plenum = volume. =20 The one I've constructed for my RX-8 is approximately 150 in = cube.  It is=20 about 4 inches wide, 2 1/2  in tall on average and 15 inches = long. =20 The is measured from the throttle body to where the four runners leave = the=20 plenum.  The four runners are actually an original RX-8 intake = cut off=20 just below the first rotary valve.

Dennis H.

the = mallorys wrote:=20
Is there a magical number for the = size of the=20 plenum?  Minimum or maximum?  I had heard something about = 50% of=20 the 1.5l for the engine, but don't know if this applies to the=20 rotary.
 
Chris
------=_NextPart_000_0004_01C64D3F.D00477F0--