Switches or relays?

Ludis Langens ludis at cruzers.com
Thu Nov 15 16:28:39 GMT 2001


Ron Schroeder wrote:
> 
> I hven't really looked into Wasted Spark much but I have a simple question.
> 
> Does the drive to the primary trade functions too (reverse polarity) every
> other firing?

Nope, at least not in GM.  Same in Ford I think.

Yes, this means that one plug of each pair fires "backwards".  I think
there's a waste-spark Ford which came from the factory with platinum
plugs.  Half the cylinders got platinum electrodes, the other half got
platinum tips.  The service parts have platinum on both surfaces so that
mechanics/owners can't mix them up.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
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