Re: [Amc-list] TBI fuel injection tuning...

[Ken Ames <ameskg@xxxxxxxxx>]

2 coils on one distributor, not 2 plugs on one sparkplug wire. : )

Ken 


Quoting Tom Jennings <tomj@xxxxxxx>:

> 
> Ken Ames wrote:
> 
> > I've though about but haven't yet done having 2 coils on one distributor.
> > As long as the wires are the same length one could splice the 2 coil
> output
> > wires into one for the distributor. Don't know the speed of electricity in
> the
> > wires but at the-speed-of-light 1 foot is about 1 billionth of a second.
> > Volts won't be any higher but joules should double (?).
> 
> What happens is, when the "points" (sic) open, the magnetic field built 
> up in the coil collapses, and the voltage out starts to rise... if 
> there's no plug, ir rises to 20,000+ volts. If there's spark plug, the 
> voltage increases to the point of arcover, then the energy dissipates in 
> the spark in the gap and doesn't go above a few thousand volts.
> 
> If there's two plugs in parallel on the same coil... Random or not so 
> random variations means that one of them will arcover first, then the 
> voltage will drop as the arc eats the energy... and the other plug will 
> not fire.
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