solutions.
Part one
Basics :
The ignition coil as the name suggested is consisted of wire coils, primary and secondary wires.
Primary is short and thick whereas the secondary is long and thin, If we magnetise primary with 14V 5Amp and cut the currant
the secondary will charge with ~20,000 30,000V and very low Amp.
This day all of the coils are dry, back in day they were wet and cooled with oil.
To charge the primary coil we need switch as physically breaker point( contact breaker points palatine) or electrically(driver) power transistor or mosfet.
These days engines we are using coils which including the drive it self, in other world the ECU doesn't have the drivers inside of it,
before introduction of the coil on plugs we had Double ignition coils which consists of a classic coil design BUT the both ends of secondaries
terminated to spark plugs, where as in classic arrangement the one side connected to primary near negative terminal.
smaple of 4 MOSFET unites/ driver/ modules I used in my M10 project to drive coils
One is using of the Double ignition coils, instate of connecting each end of secondly to a plug, we can connect both ends to a plug,
so we double energy which goes through a plug.
Other is using BMW coil on plugs, they are cheap and easy to source, google :Bosch ignition coil 0221504470 around £16 each.
The tip can be remove easily and attaching spark leads.
dwell angle is going to be very low too... good capacitors are must.
Sadly the club can't run itself.
