X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.4.51.93] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3.6) with ESMTP id 611589 for flyrotary@lancaironline.net; Fri, 22 Jul 2005 10:45:19 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.4.51.93; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 22 Jul 2005 07:44:34 -0700 Message-ID: Received: from 64.4.51.220 by BAY107-DAV21.phx.gbl with DAV; Fri, 22 Jul 2005 14:44:33 +0000 X-Originating-IP: [64.4.51.220] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Tracy's Coil Order Date: Fri, 22 Jul 2005 10:44:29 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00E0_01C58EAA.56275550" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Fri, 22 Jul 2005 10:44:29 -0400 X-OriginalArrivalTime: 22 Jul 2005 14:44:34.0064 (UTC) FILETIME=[E02F7900:01C58ECB] This is a multi-part message in MIME format. ------=_NextPart_000_00E0_01C58EAA.56275550 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable A fine idea (if you have a convenient place to mount them, rotaries = don't) but totally unrelated to the subject. COP can be a separate coil = as in the SVX Subaru, or a coil/igniter as in the BMW 6 cyl. Tracy =20 I myself am partial to coil-on-plugs (COP). Mike L. --- Tracy Crook > wrote: > Bill, Most modern ignition systems are migrating to > an integral coil/igniter module rather than a > separate igniter near the coil or in the ECU. The > igniter refers to the module that switches the high > current on and off to charge & fire the coil. This > was the job done by points and capacitors back in > the dark ages. =20 >=20 > The LS-1 and the Renesis have the igniter built as a > single module. The ECU just sends a logic level > signal to the igniter to tell it to turn on & off. =20 > This is the reason I keep having to say "no" to > builders who ask me if they can use these really > nifty "insert brand here" coils they have laying > around the shop. >=20 > Tracy (going down to hangar to test new coil & > razor sharp wingtips) >=20 >=20 > Subject: [FlyRotary] Re: Tracy's Coil Order >=20 >=20 > =20 > Santa just arrived in a big brown truck, got my > coils. I ordered from Rockauto.com. Not super > fast but dependable and fair pricing. =20 >=20 > It was my fault for not having a spare on hand - > dumb. Never had an actual coil/igniter failure > before if you don't count the ballast resistor > failure on my early 2nd gen installation. They are > generally very reliable. I'm wondering if I have > them located in a 'too hot' location. I used a > blast tube on the 2nd gen coils but thought that I > was being too conservative so deleted that on the > Renesis installation. May have been a mistake. =20 >=20 > Tracy (installing temperature probe near coils to > measure temp in-flight) >=20 > Tracy, Pardon my ignorance but what is the > ignitor? The coil I understand, is it a capacitor or > other device? > Bill Jepson >> Homepage: http://www.flyrotary.com/ >> Archive: = http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_00E0_01C58EAA.56275550 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

A fine idea (if you have a convenient place to mount them, rotaries = don't)=20 but totally unrelated to the subject. COP can be a separate coil = as in the=20 SVX Subaru, or a coil/igniter as in the BMW 6 cyl.

Tracy

I=20 myself am partial to coil-on-plugs (COP).

Mike L.

--- = Tracy=20 Crook <lors01@msn.com> = wrote:

> Bill,=20 Most modern ignition systems are migrating to
> an integral = coil/igniter=20 module rather than a
> separate igniter near the coil or in the=20 ECU. The
> igniter refers to the module that switches the=20 high
> current on and off to charge & fire the coil. =20 This
> was the job done by points and capacitors back in
> = the=20 dark ages.
>
> The LS-1 and the = Renesis have=20 the igniter built as a
> single module. The ECU just sends = a logic=20 level
> signal to the igniter to tell it to turn on & = off. =20
> This is the reason I keep having to say "no" to
> = builders who=20 ask me if they can use these really
> nifty "insert brand here" = coils=20 they have laying
> around the shop.
>
> Tracy = (going=20 down to hangar to test new coil &
> razor sharp = wingtips)
>=20
>
>   Subject: [FlyRotary] Re: Tracy's Coil=20 Order
>
>
>     =
>  =20 Santa just arrived in a big brown truck, got my
> coils. I = ordered=20 from Rockauto.com.   Not super
> fast but dependable = and fair=20 pricing.
>
>   It was my fault for not = having a=20 spare on hand -
> dumb. Never had an actual coil/igniter=20 failure
> before if you don't count the ballast resistor
> = failure=20 on my early 2nd gen installation. They are
> generally = very=20 reliable. I'm wondering if I have
> them located in a 'too = hot'=20 location. I used a
> blast tube on the 2nd gen coils but = thought=20 that I
> was being too conservative so deleted that on = the
>=20 Renesis installation. May have been a mistake.
>=20
>   Tracy (installing temperature probe near = coils=20 to
> measure temp in-flight)
>
>   Tracy, = Pardon=20 my ignorance but what is the
> ignitor? The coil I understand, = is it a=20 capacitor or
> other device?
>   Bill=20 Jepson

>> Homepage: http://www.flyrotary.com/
>&= gt; =20 Archive:   http://lancai= ronline.net/lists/flyrotary/List.html

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