>
   OK Paul
   It might be a few days. Don't forget the pulse length and voltage. I
   am not
   going to fly again until it is sorted. Local Mazda say that there
   has never
   been a failure of the igniters. I think the testers may have tried
   max and
   min voltages testing on my engine.

   Non Flying RV7 Ian.


   OK here is what it looks like down there.
   I'll need a needle scope prob to poke through the insulation.
   I'll give it a try after lunch.

    From the RX8 schematic it looks like a FET merely grounds
   the coil when it wants a spark. AKA low side switching.
   To check the avg current will require a major disassemble
   and a jumper so I ain't doing it :)

   Jim M, here are the schematics in case you don't already
   have them. Good start on figuring out the RX8 PCM schematic.

   Ian If I were you I would set it up on the bench and use
   an FET to fire it at 3000 PPM (6000 RPM) and measure the
   temp rise. Cars don't run 6000 RPM hour in and hour out.

   --
   Paul Lamar ...No rotor no motor.


Hi Paul,

   FYI, the RX8 coils fail frequently in racing (1 or more a race) but
I am not aware of any failing in street use - although they may and I
haven't heard of it.

Jim Mederer

Thanks Jim. I think we are seeing that too. We have a few years
with Chevy V8 LS1 coils and they seem to be fine.
Actully Denso made in China :)

Paul Lamar ...No rotor no motor.

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