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Old 08-14-2009, 02:22 PM
RedBarchetta RedBarchetta is offline
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Join Date: Oct 2003
Location: Yorba Linda, CA
Cobra Make, Engine: SPF w/392CI stroker
Posts: 3,293
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Quote:
Originally Posted by trularin View Post
You car runs on 13.8 Volts. That is the pressure. You alternator puts out 14 Volt or more of pressure OF 65 to 150 Amps. Amps are the volume.
Holy shiat! I just re-read all the posts and now this finally makes sense!

When I was experiencing that off-idle stumble, essentially what was happening was there was not enough volume of electrons to fire the MSD. It was too low an rpm for the alternator to put out sufficient volume to generate the proper spark, so the system really needed the battery at that point to supply the necessary level of juice. Once I got to higher rpms, the alternator was then supplying enough volume to compensate for the loose negative battery cable condition. Hence the stumble/cutting out immediately went away.

Teacher, do I get an 'A' for today?
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