Thread: Multiple coils
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Old 05-03-2008, 08:31 PM   #1
Ray Menard
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Question Multiple coils

I saw a racer I respect very much a few weeks ago with 8 coils on his Super Stock motor. The more I think about it, the more I wonder if this might be something worth investigating. With a Super Stock motor that sees close to 10,000 RPM in the lights, logic tells me with 8 coils (one/cylinder), each coil would only have to produce a spark 1 out of 8 times instead of 8 out of 8. This time lag, although short (at 10,000 RPM, each plug in an 8 cylinder motor fires 10 times/second). If each coil had to produce only 10 ignition events/second instead of 80 ignition events/second, surely each coil would have more time to recover between events and thus produce a better quality spark.

Does this train of thought make any sense or do I need therapy? Does anyone have any experience running multiple coils on a Super Stock motor?
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