Return-Path: Sender: (Marvin Kaye) To: lml Date: Sun, 15 Jun 2003 20:34:12 -0400 Message-ID: X-Original-Return-Path: Received: from falcon.mail.pas.earthlink.net ([207.217.120.74] verified) by logan.com (CommuniGate Pro SMTP 4.1b8) with ESMTP id 2429947 for lml@lancaironline.net; Sun, 15 Jun 2003 15:38:40 -0400 Received: from lsanca1-ar7-4-43-218-075.lsanca1.elnk.dsl.genuity.net ([4.43.218.75] helo=earthlink.net) by falcon.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 19RdKo-0004u5-00 for lml@lancaironline.net; Sun, 15 Jun 2003 12:38:39 -0700 X-Original-Date: Sun, 15 Jun 2003 12:37:23 -0700 Mime-Version: 1.0 (Apple Message framework v552) Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: CID From: Douglas Weeldreyer X-Original-To: lml@lancaironline.net Content-Transfer-Encoding: 7bit X-Original-Message-Id: X-Mailer: Apple Mail (2.552) Scott Last time I checked, cubic inch DISPLACEMENT includes only the swept volume as George says. Pop up pistons, etc. only change the FIXED volume above the piston. Displacement happens only when the piston moves up in the cylinder, displacing cubes as it goes. It is calculated simply by multiplying the cylinder bore by the stroke. Check me if I am wrong. Doug