X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp110.sbc.mail.re2.yahoo.com ([68.142.229.95] verified) by logan.com (CommuniGate Pro SMTP 5.0.7) with SMTP id 960178 for flyrotary@lancaironline.net; Sun, 29 Jan 2006 20:10:04 -0500 Received-SPF: none receiver=logan.com; client-ip=68.142.229.95; envelope-from=downing.j@sbcglobal.net Received: (qmail 10394 invoked from network); 30 Jan 2006 01:09:20 -0000 Received: from unknown (HELO mom) (downing.j@sbcglobal.net@69.209.98.178 with login) by smtp110.sbc.mail.re2.yahoo.com with SMTP; 30 Jan 2006 01:09:19 -0000 Message-ID: <003a01c62539$ee0e0e60$4001a8c0@gateway.2wire.net> From: "John Downing" To: "flyrotary" Subject: Cooling air inlets Date: Sun, 29 Jan 2006 20:06:27 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0027_01C6250F.7CED4720" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 This is a multi-part message in MIME format. ------=_NextPart_000_0027_01C6250F.7CED4720 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I am modifying the cowling for the Tailwind. The air inlet holes are 2 = 5/8"s x 7.5"s for a total of app. 21.5 sq. inches. x 2 for a total of = 43. I am looking at a 5 inch round hole which is the size that Same = James is using for the O-320's, which would make the diffusers easier = to fabricate. The round 5 " hole has approximately 19.3 sq inches x 2 = for 38.6 sq. inches total, if my math is right. Is this a ball park = figure for the water coolers (GM evaporators) on the Mazda 13 B engine. = JohnD ------=_NextPart_000_0027_01C6250F.7CED4720 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I am modifying the cowling for the = Tailwind. =20 The air inlet holes are 2 5/8"s x 7.5"s for a total of app. 21.5 = sq.=20 inches. x 2 for a total of 43. I am looking at a 5 inch round = hole=20 which is the size that Same James is using for the O-320's, = which=20 would make the diffusers easier to fabricate. The round 5 " hole = has=20 approximately 19.3 sq inches x 2 for 38.6 sq. inches total, if my = math is=20 right. Is this a ball park figure for the water coolers (GM = evaporators)=20 on the Mazda 13 B engine. JohnD

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