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Date: Thu, 21 Jul 2005 20:43:47 -0700 (PDT)
From: Michael LaFleur <mike.lafleur@sbcglobal.net>
Subject: Re: [FlyRotary] Re: Tracy's Coil Order
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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I myself am partial to coil-on-plugs (COP).

Mike L.

--- Tracy Crook <lors01@msn.com> 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.    
> 
> 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.  
> 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.
> 
> Tracy  (going down to hangar to test new coil &
> razor sharp wingtips)
> 
> 
>   Subject: [FlyRotary] Re: Tracy's Coil Order
> 
> 
>     
>   Santa just arrived in a big brown truck, got my
> coils.  I ordered from Rockauto.com.   Not super
> fast but dependable and fair pricing.  
> 
>   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.  
> 
>   Tracy  (installing temperature probe near coils to
> measure temp in-flight)
> 
>   Tracy, Pardon my ignorance but what is the
> ignitor? The coil I understand, is it a capacitor or
> other device?
>   Bill Jepson