sidecar wrote:Eliot wrote:What problems are you actually experiencing?
Fitting mega doody funky blaster coils and all the other related stuff such as 1" ignition leads (I'm exaggerating) is only really making up for the fact that a single coil on a v8 engine doesn't really have enough time to charge at high rpm to give a decent spark.
Hi Elliot, You are correct in that it takes time to saturate a coil and there ain't much time between firing points on a V8 with a single coil.
It takes much less time to charge a capacitor compared to a coil which is handy if you run a capacitor discharge system such as an MSD.
Not sure I agree with that. I don't see why you can't design a coil to charge sufficiently between sparks. If you can design a capacitor, why not a coil?
Clearly in the old days you had other issues, like if the ignition was switched on, but the engine not running, and the points closed, you didn't want the current flowing through the coil to set it on fire (so you had a relatively high DC resistance).
But with modern ignition amplifiers, that scenario disappears, so you can design the coil with a very low DC resistance.
And one thing you don't want to do is saturate the coil. If you do that, the current shoots to infinity (well, the current is set by the DC resistance, not the inductance at this point), and you blow up your amplifier / points!
Chris.
