Autronic ECU and twin-spark

Bernd Felsche bernie at innovative.iinet.net.au
Mon Dec 10 07:47:08 GMT 2001


Chris Waltham tapped away at the keyboard with:
> 
> >First instinct would be that it's a knock-reduction strategy.
> >i.e. second spark ahead of the flame front so that combustion occurs
> >at a controlled time. You can ignite later to allow the flame front
> >to expand into a more-rapidly-increasing cylinder volume.

> What if the sparks are at the same time? For the uninitiated..

I don't know.

It could be to develop the cylinder pressure more progressively
instead of a single hit, depending on flame/engine speeds.

What do Autronics say?
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