My UPS scale and my digital fish scale agree that the Mazda coils
(with mounts)
weigh 4 lb 9 oz and 2 lb 11 oz respectively.  Total is 7 lb 4 oz.

Ken Powell

I only weighed one.  Forgot that they were different.  Jerry

Are these CDI coils or is Tracy using transistorized ignition (i.e. 12V

on

the primary vs. ~300V for CDI)?

Eric Holmberg
Express 2000 FT

I'll let Tracy answer that. Tracy?

Paul Lamar

The AC Delco coils  are magnetically biased inductive ignition coils with
their own igniters and current limiting circuitry.  Magnetically biased
means they have a very high energy spark in spite of their small size.

Others may disagree (and I'm sure they will :)  but I think  CDI does not
have any advantages in our (aircraft) application when the engine is run at
7000 rpm or less.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

 
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