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What individual coil pack will fit best in my 3L, 12V V6? This is for my race car and I'm going to a standalone ECU.
 

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I've used Yamaha (Denso) coils from an (well, 1 and a half) R6(s).
They are the perfect length but needed a reducing bush at the top because they are smaller than the sparkplug tubes. I made the bushes out of 3/4" nylon chopping board.
***Note that I've not used the car like this.***
 

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I used coils from 2006 model bikes.
Interwebz research suggested that pre-2006 used CDI type ignition systems and coils that are specifically designed for CDI get killed by the longer dwell time of transistor switched ignition systems.
My understanding is that Yamaha went to transistor switched ignition because CDI apparently struggles to cleanly ignite leaner air/fuel mixtures. Though that is probably less of an issue with a multiple strike CDI system.

1 nice thing about having the Denso coils is that getting new plugs and pins for them is easy enough. And they are only a 2 wire coil, which keeps the wiring nicer.
 

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That does sound like a dumb coil.
 

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Duk,

Since it's a 2-wire, can assume that's purely a coil (dumb coil)?
I'm sure they're not the smartest. :wink2:

'Smart' coils have built in ignition modules.
 
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