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Old 12-04-2012, 12:05 AM   #1
digger440 OP
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Joined: Nov 2012
Location: Very northwest corner of the USA
Oddometer: 74
Question How much current can a electronic module handle???

In the cafe build I am doing I was looking at going COP using ford modular motor coils, specifically these:

http://www.summitracing.com/parts/acc-140032/overview/ Which have a .66 ohm primary resistance

I read here http://www.largiader.com/articles/ignition/ that 1981 on coils were 6V wired in series with .7 ohms primary resistance

Using ohms law 2 stock coils @ 12V with .7 Ohms primary resistance each, wired in series, yields an 8.7143 amp load

while the aftermarket DIS coils @12V with .66 Ohms primary resistance each, wired in series, yields a 9.09091 amp load

A 0.37661 amp difference, would any electronic guys care to chime in? I know transistors can have severely reduced service life with even just a little more load then they are supposed to have. Now I am not going cross country on this thing, but I do not want to have to keep a spare ignition module under the seat either (this is not a early 90 GM I am building)
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digger440 screwed with this post 12-04-2012 at 12:12 AM Reason: been drinking, ETA punctuation
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