Dwell time as a %

[Roy]

Tom Cloud wrote:
> 
> >> >> Can someone help me... I am trying to work outthe ignition coil dwell time
> >> >> expressed as a % for various engine combinations but I am getting
> confused.
> 
> Doesn't the dwell time number depend on the type of ignition
> you're using?  If you're using CDI, then dwell is not a factor,
> as I understand it.  If you're using transistor ignition, then
> the circuit is actually building up a magnetic field in the
> coil until "currentus interruptus", producing the spark and dwell
> would be a factor there.  In CDI, the charge is built up
> in a capacitor and discharged through an SCR into the coil when
> the spark is desired.
> 
> Do you know what type ignition you're using?  Does this have
> any bearing on what you're doing?
> 
> Tom Cloud <cloud at peaches.ph.utexas.edu>
>
>
> In many electronic systems ie EEC 1V the dwell is electronically > controlled to ensure saturation of the coil at all times, hence why
> the coils impedance is so low.
>
> spectrics at globalnet.co.uk