Ok. I was extremely busy this week at work, so I did this tonight in the cold after I cannibalized a battery pack to fix my interro scope. Hopefully, this will be enough to keep all coil dwell paranoia at bay, and determine which coils will work best.
From what I have found out, the LS2 non-finned truck ignition coils (barrel shaped), should work best for this conversion. My '95 wagon has 4.59 mS max dwell and 3.2 mS minimum dwell. According to the Megasquirt coil dwell page, max dwell for the LS2 coil should be set to 4.5 mS. This looks like a perfect match. The LTCC product page says you cannot use the finned LS2 ignition coils. Not sure why.
"The round body truck coils with the metal fins (19005218) DO NOT WORK"
Now we also know why the LTCC module has so few parts. It most likely GATES the EST signal to the correct coil in sequence. The lack of other chips is why I suspected this. It just looked too simple for yesteryear's technology. I figured that engineer was clever, and he sure is. More clever than most, since he has a finished product with a minimum of internal parts.
Anyways, here is my proofs. The battery voltage was 13.85v
Attachment 12253
Attachment 12254
Attachment 12255
damn it. The server flipped them sideways.
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