Return-Path: Received: from ns5.rokland.us ([67.15.10.31] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP-TLS id 595226 for flyrotary@lancaironline.net; Fri, 07 Jan 2005 20:34:48 -0500 Received-SPF: none receiver=logan.com; client-ip=67.15.10.31; envelope-from=bob@bob-white.com Received: from bgp01386375bgs.brodwy01.nm.comcast.net ([68.35.160.229] helo=quail) by ns5.rokland.us with smtp (Exim 4.43) id 1Cn5Uh-0008ET-8X for flyrotary@lancaironline.net; Fri, 07 Jan 2005 19:34:19 -0600 Date: Fri, 7 Jan 2005 18:34:14 -0700 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] which engine Message-Id: <20050107183414.24b4c1f8.bob@bob-white.com> In-Reply-To: References: X-Mailer: Sylpheed version 1.0.0 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Antivirus-Scanner: Clean mail though you should still use an Antivirus X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - ns5.rokland.us X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - bob-white.com X-Source: X-Source-Args: X-Source-Dir: Hi Paul, I may have this mixed up, but I think what Bruce built for me was a 4 port (Turbo?) engine with NA rotor housings. The rotor housings have the exhaust diverters in them. The advantage of the 4 port is simpler intake. He reccomended the second gen engine because more of them had been sold and were more readily available. It is street ported with 9.7:1 rotors. Bob White On Fri, 7 Jan 2005 19:05:08 -0600 "Paul" wrote: > I need to query the group....which might be the best choice of engines > (going non-turbo)....a street ported 4-port with high compression > rotors, or a street ported NA 6 port with high compression rotors? I > could do it either way....just don't know if one has advantages over > the other. Thanks in advance for all input and suggestions. Paul > Conner -- http://www.bob-white.com N93BD - Rotary Powered BD-4 (soon) Intake Manifold ships next week?