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