Electronic ignition upgrade.

[GEO]

And with switching those two boxes

What ignition coil was used

What OHM ballast resistor was used if any

I have tested so many of these damn boxes on my car and they all would react differently based on other components within the ignition system

Why would any of that matter, when the mopar chrome box works and the hi rev doesn't and that is the only difference?

 

[Dave999]

the ballast resistor limits current through the coil in order to stop the transistor in the box burning out, and to stop the oil in the coil boiling

coil and ballast are a matched pair.
and their total resistance is then matched to the type of box or switch you use to switch the coil off and on points, Mopar style box, HEI etc

then you get advertised performance.


plug gap etc
change the plug gap you change the point at which a spark starts at the plug
if you change the point at which a spark starts you change the environment of the coil in respect to magnetic field collapse, size of field and speed of collapse

change the size of the field and the speed of collapse and you change the imiendence of the coil at that RPM

the ballast and ignition box then need to cater for a situation that looks like more or less resistance

impedance is seen like a resistance to a power supply:- but impedance itself is a term covering a bunch of effects caused by the interactions between magnetic fields electric fields and their surroundings i.e iron cores and copper wires and coils .

Resistance DC

impedance is in the realms of AC or switched DC causing AC like behaviour in a system

you got to cover inductance reluctance and reactance i think.... its 35 years ago too much beer has flowed through my brain

dave

 

[carby tuning techniques]

the ballast resistor limits current through the coil in order to stop the transistor in the box burning out, and to stop the oil in the coil boiling

coil and ballast are a matched pair.
and their total resistance is then matched to the type of box or switch you use to switch the coil off and on points, Mopar style box, HEI etc

then you get advertised performance.


plug gap etc
change the plug gap you change the point at which a spark starts at the plug
if you change the point at which a spark starts you change the environment of the coil in respect to magnetic field collapse, size of field and speed of collapse

change the size of the field and the speed of collapse and you change the imiendence of the coil at that RPM

the ballast and ignition box then need to cater for a situation that looks like more or less resistance

impedance is seen like a resistance to a power supply:- but impedance itself is a term covering a bunch of effects caused by the interactions between magnetic fields electric fields and their surroundings i.e iron cores and copper wires and coils .

Resistance DC

impedance is in the realms of AC or switched DC causing AC like behaviour in a system

you got to cover inductance reluctance and reactance i think.... its 35 years ago too much beer has flowed through my brain

dave

Thats a nice post Dave

 

[carby tuning techniques]

Me personally, I'd stay with the Mopar distributer.

This is the one I bought from Rick Ehrenberg on Ebay.

Works great , no issues, excellent to do business with, fast shipping.

My distributer cap broke in shipping, Rick replaced it free of charge.


Mopar Electronic Ignition Distributor Smallblock Plym Dodge 318/340/360 NOS Cap | eBay

yes these are a good dizzy.