08-04-2013, 05:25 AM
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CC Member
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Join Date: May 2002
Location: Ashburton, New Zealand,
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Cobra Make, Engine: UK Ram SC. KC-Yates 373, Jerico 5 speed.
Posts: 1,240
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Not Ranked
Multi-coil ignition any advantage or theory.
Looking at different ignition systems, MSD, CRANE, ACCEL etc they seem to have a lot of punch down low with multi sparks and after 3000rpm go into a single short spark.
Reading different articles there is digital inductive ignition which apparently has a longer spark. confusing to a non tech person like me, then I read where a single coil ignition isnt as efficient as a multi coil system.
My 373 Yates engine is pretty much all done by 7000rpm, we are not running big revs like a nascar engine and probably for most of the time 6500rpm produces over 600bhp there is not a great need to rev the guts out of it, so if the Nascar guys run 9000 rpms with a single coil and MSD or Crane ignition, I cant really see how a set of 4 coils or a coil per cylinder is going to change the world...it seems a single coil can keep up with their requirements.
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A J. Newton
The 1960's rocked!
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