CDI powerful multi-spark

[xxalexx at ix.netcom.com]

> The energy delivered to the combustion chamber by even the most powerful
> ignition system is insignificant compared to the energy produced by the A/F
> charge burning.  Even if the spark were capable of pitting the piston,  the
> sparking occurs while the piston is still relatively far from the top of its
> stroke.  Remember that the spark gap is set to as wide a gap as possible and
> still spark reliably.  The distance from the center electrode to the piston
> is usually many times the gap width.
> 
I think the saab uses the piston as a electrode
alex