Originally Posted by Hanks custodian
Wondered about all those Opel 1.3 ones, you think they are the same?

The module doesn't care what engine it happens to work with, or how many cylinders it's firing- - - -it's just an electronic on/off switch that interrupts the primary coil winding current flow. The Delco-Remy OEM units have all the fancy control circuits for monitoring coil magnetic saturation, and a trigger circuit that doesn't start primary current flow until it senses distributor rotation. That's important to prevent coil burnout from an accidental "switch on- - - -engine stopped" situation. That's what causes a total meltdoen of Pertronix systems pretty often. Most HEI coils have a primary resistance of only 1/2 Ohm- - - -that's a surge current of 24 amps of primary current flow or more, at least until the inductive reactance of the primary windings kicks in.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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