X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from web53511.mail.re2.yahoo.com ([206.190.39.65] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with SMTP id 3757927 for flyrotary@lancaironline.net; Tue, 14 Jul 2009 21:33:56 -0400 Received-SPF: none receiver=logan.com; client-ip=206.190.39.65; envelope-from=plumberben@yahoo.com Received: (qmail 3773 invoked by uid 60001); 15 Jul 2009 01:33:15 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1247621595; bh=turNcyooC3sjhzM6LzNa/LlsZRoO/GkUcQFUnmZS+KE=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=DwaEtjRwTpiNsh+AIvF99djmm7msyY9yyWrDkBv0hvqH+7fAnO8dnH7ibw5esAQ9mkTAhbmbmRZTpGQaT/9Xf18ho7lR+DOC3ML/dbXlzzZ2N+BHP1vlaZzHPrdoSIv9FkLoIj3X+yqzTI/hLUkIUZdq7OTnoxIzGG/xHJ8WOfA= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=cr0Do4ZYjZKAmdh5V+zpk/hs80qP5mOVW3Ng1sgs7CZbu8fQJw5W1sz7GsFb9/q+RdNLr08/O35NDTmuYS5JFYaWU6lUK8cP99M+8DF+OVj/4gXCzjrFUbP9IzLqSYRawPN9uQcoCMixUaSN0KdlgBpZwqmCT905OpCiD0tYqI4=; Message-ID: <823326.3743.qm@web53511.mail.re2.yahoo.com> X-YMail-OSG: vu0zWGkVM1mjENNeerFrqievINXS8aMZ.6_EXxi4.yQARZDwpAO_Hx69nKu39eebD6F5iq58Kj89pFAQd02N2nZL4DiEYl.dMILpwWkyD3CZgSuntBU4.WPMK5bQCYhFUyr4yhTaLwnx9b6AIDMnougGtpliIXlTp7sKSfPDnSIybAPeadaHzm7cJxQA4VJzVYEk6VrgNV_AOaD1HWCdh8.N7FcKhmAUjFgd7IydDfWmrdoD_kQpPuMRidJusGmdNjd70YxC4ZUYguueduzwEnQv Received: from [208.3.193.10] by web53511.mail.re2.yahoo.com via HTTP; Tue, 14 Jul 2009 18:33:15 PDT X-Mailer: YahooMailClassic/5.4.17 YahooMailWebService/0.7.289.15 Date: Tue, 14 Jul 2009 18:33:15 -0700 (PDT) From: Ben Schneider Subject: Intake velocity stack lengths To: Fly Rotary List MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Fellows, I have been thinking up this crazy idea of trying to make intake runner tubes out of carbon fiber. My question is regarding length of the velocity stack. Does the length make a difference? Could a velocity stack be more or less the entire length of the tube? Meaning, if I have a 12" intake tube, could the entire length of the tube be a gradual taper to the diameter of the block opening? Would that mess with the speed the air is traveling in the tube? Aerodynamics is not something I have a very good handle on, and am hoping someone out there in Fly Rotary land can shed some light. Toughts??? BTW, Any reasons why carbon fiber should not be used for intake tubes? May make the velocity tubes a mute point. Thanks for any thoughts. Ben Schneider P.S. Any Fly Rotary fellows going to OSH??? Perhaps a lunch one day or something.