Paul,

 I found this in my Mazda parts stash.

 Joe Berki

 There you go Joe. Perfect! All you have to do is re-drill the
 mounting holes to get the timing right.

 That is a 3rd gen trigger wheel.

 Paul Lamar



Paul

Would this ignition only with trigger wheel be relatively straight forward to set up on a RX8 motor?

Bruce Cosgrove

It might work because it is a computer that calculates the changing dwell time for the old
fashion Kettering ignition system coils. Invented in 1922 :-)
.
One more thing to go wrong. Most of the EFI systems on the market have
this built in. They are a pain in the ass to tune.

I would use the CD system. No dwell.

Just need to change the trigger plate and add another CAS 180
degrees away for the second rotor.

The Mallory unit has the best specs I have seen so far.

It eliminates half the software in most EFI systems.

CD system fire when told by the CAS. Most EFI systems have
to get the trigger  pulse long before the spark is to fire. The software
decides when to turn the coil on. When the coil is turned off the plug fires.

Kettering system invented in 1922 :-)

Paul Lamar


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