X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 25 Mar 2012 12:24:12 -0400 Message-ID: X-Original-Return-Path: Received: from imr-ma05.mx.aol.com ([64.12.100.31] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTP id 5455758 for lml@lancaironline.net; Sun, 25 Mar 2012 10:49:53 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.100.31; envelope-from=Sky2high@aol.com Received: from mtaomg-ma06.r1000.mx.aol.com (mtaomg-ma06.r1000.mx.aol.com [172.29.41.13]) by imr-ma05.mx.aol.com (8.14.1/8.14.1) with ESMTP id q2PEnBBd007969 for ; Sun, 25 Mar 2012 10:49:11 -0400 Received: from core-mtb002a.r1000.mail.aol.com (core-mtb002.r1000.mail.aol.com [172.29.234.197]) by mtaomg-ma06.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 07370E000081 for ; Sun, 25 Mar 2012 10:49:11 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <18cc7.21388383.3ca08a66@aol.com> X-Original-Date: Sun, 25 Mar 2012 10:49:10 -0400 (EDT) Subject: LSE EI display inaccuracies X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_18cc7.21388383.3ca08a66_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:384938336:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d290d4f6f30671536 --part1_18cc7.21388383.3ca08a66_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Recently, there was a complaint about the MAP info displayed by the Light Speed Engineering Plasma III electronic ignition with the optional LCD monitor. While that situation may have been resolved, there still are possible inaccuracies in the LSE display. My own experience confirms this. For example, the RPM was off (low) by various amounts (up to 50) at different engine speeds and this was confirmed during dynamic prop balancing with its highly accurate external tach. My VM EPI 800 engine monitor was within 10 RPM (its display steps in 10s) To check any static MAP indication, one must remember it senses absolute pressure. Thus, if one sets the sensitive altimeter to sea level without the engine running, the Kollsman window readout (Hg") should match the display of any MAP sensor. For example, when my certified altimeter was set to sea level (0 altitude), the pressure readout was 29.2" and my EPI 800 engine monitor also read 29.2" while the LSE LCD display showed 28.95". I have also noted displayed timing discrepancies between the dual ignitions of up to .5 degrees. Maybe some day I will check that out... It is possible that the internal sensor circuitry and logic is better than the converted data sent to the display. Scott Krueger Lyc IO 320 --part1_18cc7.21388383.3ca08a66_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Recently, there was a complaint about the MAP info displayed by=20 the Light Speed Engineering Plasma III electronic ignition with the=20 optional LCD monitor. While that situation may have been resolved,=20 there still are possible inaccuracies in the LSE display.

My own experience confirms this. For example, the RPM was off (l= ow)=20 by various amounts (up to 50) at different engine speeds and this was confi= rmed=20 during dynamic prop balancing with its highly accurate external tach. = My=20 VM EPI 800 engine monitor was within 10 RPM (its display steps in 10s)

To check any static MAP indication, one must remember it sen= ses=20 absolute pressure. Thus, if one sets the sensitive altimeter to sea l= evel=20 without the engine running, the Kollsman window readout (Hg") should m= atch=20 the display of any MAP sensor. For example, when my certified altimet= er=20 was set to sea level (0 altitude), the pressure readout was 29.2" and = my=20 EPI 800 engine monitor also read 29.2" while the LSE LCD display showed=20 28.95".

I have also noted displayed timing discrepancies between the dual= =20 ignitions of up to .5 degrees. Maybe some day I will check that=20 out...

It is possible that the internal sensor circuitry and logic is be= tter=20 than the converted data sent to the display.

Scott Krueger

Lyc IO 320

--part1_18cc7.21388383.3ca08a66_boundary--