X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from omr-m04.mx.aol.com ([64.12.143.78] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6357277 for flyrotary@lancaironline.net; Mon, 01 Jul 2013 16:23:16 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.143.78; envelope-from=Lehanover@aol.com Received: from mtaomg-mb03.r1000.mx.aol.com (mtaomg-mb03.r1000.mx.aol.com [172.29.41.74]) by omr-m04.mx.aol.com (Outbound Mail Relay) with ESMTP id C6B51700615CD for ; Mon, 1 Jul 2013 16:22:43 -0400 (EDT) Received: from core-mod005b.r1000.mail.aol.com (core-mod005.r1000.mail.aol.com [172.29.196.17]) by mtaomg-mb03.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 6E363E000090 for ; Mon, 1 Jul 2013 16:22:43 -0400 (EDT) From: Lehanover@aol.com Full-name: Lehanover Message-ID: <8f9aa.300d41a.3f033f13@aol.com> Date: Mon, 1 Jul 2013 16:22:43 -0400 (EDT) Subject: Re: [FlyRotary] Re: Twin 46mm throttle bodies... I can't seem to find the room. To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_8f9aa.300d41a.3f033f13_boundary" X-Mailer: AOL 9.7 sub 55 X-Originating-IP: [173.88.28.139] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1372710163; bh=KPwN//EO6xHuEGaHLWCyW9VK+vgDPbsq4/YsKmljKM4=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=MTCTc7V5ahvq+//MlXlG42mPvZeDcDvxJlYPfX/MZO2pMbkGlZmH6/SNNG5i8/mCl sDyKdrrKilk5SrZ33Voeuo3Ake34vLWtbj/Aq+2+KcY6cPLTEHatiqKdT3C8GuXFdd qmCHFMgs8QLwTCATZndpJixLwT8GWud/7ixS4saQ= X-AOL-SCOLL-SCORE: 0:2:417219072:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d294a51d1e5137bbe --part1_8f9aa.300d41a.3f033f13_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit That about covers it. On a single turbo, one TB would go together with greater ease. If the throttle seems to have a dead spot at top RPM, as in more throttle does not improve power, then the TB is too big. Rig the TB to open just a bit past what appears to be wide open. In many cases this allows for a range of directed flow that often produces more than just wide open. A bigger TB can be added later if required. A nice air horn with re-entrant bell shape flows like magic. An air filter........always. Lynn E. Hanover In a message dated 7/1/2013 1:37:23 P.M. Eastern Daylight Time, msteitle@gmail.com writes: William, For a point of reference, I'm running three 46mm TB's on my n/a p-port 3-rotor, and they are working great. This is my third intake, second for the p-port engine. This is installed in a Lancair ES, so it probably has more room under the cowl that you have. If your engine isn't peripheral-ported, then you're probably better off with a single TB. Mark S. --part1_8f9aa.300d41a.3f033f13_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

That about covers it. On a single turbo, one TB would go toget= her=20 with greater ease. If the throttle seems to have a dead spot at top RPM, as= in=20 more throttle does not improve power, then the TB is too big. Rig the TB to= open=20 just a bit past what appears to be wide open. In many cases this allows for= a=20 range of directed flow that often produces more than just wide open. A bigg= er TB=20 can be added later if required. A nice air horn with re-entrant bell=20 shape

flows like magic. An air filter........always.

Lynn E. Hanover

In a message dated 7/1/2013 1:37:23 P.M. Eastern Daylight Time,=20 msteitle@gmail.com writes:

William,

For a point of reference, I'm running three 46mm TB's on my=20 n/a p-port 3-rotor, and they are working great. This is my thi= rd=20 intake, second for the p-port engine. This is installed in a Lancai= r ES,=20 so it probably has more room under the cowl that you have. If your= =20 engine isn't peripheral-ported, then you're probably better off with a si= ngle=20 TB.

Mark S.

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