Return-Path: Received: from mtiwmhc11.worldnet.att.net ([204.127.131.115] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 555507 for flyrotary@lancaironline.net; Fri, 03 Dec 2004 21:23:48 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.131.115; envelope-from=keltro@att.net Received: from 204.127.135.30 ([204.127.135.30]) by worldnet.att.net (mtiwmhc11) with SMTP id <2004120402231211100ijpp5e>; Sat, 4 Dec 2004 02:23:17 +0000 Received: from [209.247.222.95] by 204.127.135.30; Sat, 04 Dec 2004 02:23:12 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Non-Resister plugs Date: Sat, 04 Dec 2004 02:23:12 +0000 Message-Id: <120420040223.18181.41B11F8F000A6ED5000047052160376021019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Oct 18 2004) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_18181_1102126992_0" --NextPart_Webmail_9m3u9jl4l_18181_1102126992_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Tracy, Will the use of non-resister plugs cause any problem with the EC-2 or the GM coil/igniters that you are aware of ? -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from "Al Gietzen" : -------------- Most cars have "magnetic suppression" type spark plug wire these days. It is a long coil of thin wire wrapped around insulating fibers. It acts as an inductor in the circuit. This tends to make the current much more constant during each spark. I went with MSD plug wires that are Magnetic Suppression type. My thinking is the using induction vs reistance for current limiting is better because the energy is “stored” rather than “dissipated” as it is in a resistance. But I don’t know if the “R” plug is really resistive, or also is primarily using induction. I think I recall MSD says suppression plugs are not needed with their wires. If the coils and ignition control module you have selected were designed to use magnetic suppression wires and resistor plugs, you would probably be smart in continuing to use these type plugs and wires. The higher peak current from non-resistor plugs can also damage the coil or ICM if they are not designed for that use. Good point. I’m sure that the LS1 coils are designed to use some kind of suppression. I know that the earlier electronic ignitions set up for carbon core wires would not work well with regular wire. Al --NextPart_Webmail_9m3u9jl4l_18181_1102126992_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Tracy,

Will the use of non-resister plugs cause any problem with the

EC-2 or the GM coil/igniters that you are aware of ?

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

-------------- Original message from "Al Gietzen" <ALVentures@cox.net>: --------------

Most cars have "magnetic suppression" type spark plug wire these days. It is a long coil of thin wire wrapped around insulating fibers. It acts as an inductor in the circuit. This tends to make the current much more constant during each spark.

I went with MSD plug wires that are Magnetic Suppression type. My thinking is the using induction vs reistance for current limiting is better because the energy is “stored” rather than “dissipated” as it is in a resistance. But I don’t know if the “R” plug is really resistive, or also is primarily using induction. I think I recall MSD says suppression plugs are not needed with their wires.

If the coils and ignition control module you have selected were designed to use magnetic suppression wires and resistor plugs, you would probably be smart in continuing to use these type plugs and wires. The higher peak current from non-resistor plugs can also damage the coil or ICM if they are not designed for that use.

Good point. I’m sure that the LS1 coils are designed to use some kind of suppression. I know that the earlier electronic ignitions set up for carbon core wires would not work well with regular wire.

Al

--NextPart_Webmail_9m3u9jl4l_18181_1102126992_0--