X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 939373 for flyrotary@lancaironline.net; Tue, 10 May 2005 21:41:25 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.70; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf22aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050511014035.XEQ2059.imf22aec.mail.bellsouth.net@rd> for ; Tue, 10 May 2005 21:40:35 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Tracy's and Bruce's style intakes Date: Tue, 10 May 2005 20:40:50 -0500 Message-ID: <001001c555ca$7642ef20$04000100@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0011_01C555A0.8D6CE720" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0011_01C555A0.8D6CE720 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable From what I have seen when cost is not a deciding factor auto makers / tuners tend to go favout air horns projecting into an ample plenum as opposed to the "log" manifold. With the injectors pointing into the air horns low speed trottle response and idle is going to be less then = optimum however mid / high speed performance should be good. -- Ian =20 Hi Ian,=20 =20 That's interesting, and makes sense. I already have the primaries in = the intermediate housing, so I can just leave those where they're at, and it will take care of the low throttle operation problems. The secondaries = will just be for high throttle, which should work fine if pointed into the = bell mouth. Still, it might be just as easy to install the secondaries in = the runner that goes to the engine anyway. Just kinda testing all the = options now. =20 =20 Cheers, Rusty =20 =20 =20 ------=_NextPart_000_0011_01C555A0.8D6CE720 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message

From what I have seen when cost is not a deciding = factor auto=20 makers / tuners tend to go favout air horns projecting into an ample = plenum as=20 opposed to the "log" manifold.  With the injectors pointing into = the air=20 horns low speed trottle response and idle is going to be less then = optimum=20 however mid / high speed performance should be good. -- Ian

 
Hi Ian,=20
 
That's = interesting, and=20 makes sense.  I already have the primaries in the intermediate = housing, so=20 I can just leave those where they're at, and it will take care of the = low=20 throttle operation problems.  The secondaries will just be for high = throttle, which should work fine if pointed into the bell mouth.  = Still, it=20 might be just as easy to install the secondaries in the runner that = goes to=20 the engine anyway.  Just kinda testing all the options now. =20
 
Cheers,
Rusty
 =20
 
 




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