Return-Path: Received: from [65.54.169.89] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.1b8) with ESMTP id 2436369 for flyrotary@lancaironline.net; Thu, 19 Jun 2003 20:28:05 -0400 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 19 Jun 2003 17:28:01 -0700 Received: from 67.243.12.187 by bay3-dav59.bay3.hotmail.com with DAV; Fri, 20 Jun 2003 00:28:01 +0000 X-Originating-IP: [67.243.12.187] X-Originating-Email: [lors01@msn.com] Reply-To: "Tracy Crook" From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Engine instruments Date: Thu, 19 Jun 2003 20:28:54 -0400 Organization: Real World Solutions Inc. MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Message-ID: X-OriginalArrivalTime: 20 Jun 2003 00:28:01.0278 (UTC) FILETIME=[CE8369E0:01C336C2] > I am planning on using Motorola sensors (MPX5700) to read the intake > manifold and turbo output. I am a bit confused about the type of sensor > to use. > > I believe that I should use an Absolute sensor for the intake plenum and > a Gauge sensor for the turbo pressure ---But I am not sure! > The meters will be calibrated to read in inches. > > Can someone comment on this --- Ed and Tracy probably know about this. > > Also, has anyone ever used these sensors to read fuel pressure, are they > resistant to fuels? > > Thanks > > Rino > Turbo 13b Glass Goose I'd go with absolute sensors on both since that's all the engine cares about. The MPX4250AP is good for around 60" manifold pressure (absolute), more than enough. Tracy Crook