What is the resistance on the ballast? So you added new coil and ballast get real hot. That means excessive current and possibly coil over heating. Need to check the wiring, and make sure the resistor meets the coil spec.
Exactly
. What ignition ecu, what coil and what resistor? They are designed to work together and you may have disrupted the combination with the Blaster coil. Different coils can have very different primary resistance. What works best on a CD ignition is probably very wrong on an Inductive ignition. If the total resistance of the coil and ballast resistor is too low the ECU life may suffer. If the ballast resistance is too low for the coil then coil life could suffer. If the total resistance of the coil and ballast is too high then spark strength will suffer. If everything works together they will have a very long life. Things tend to go sideways If you upset that ballance by changing a part to something inappropriate.
