This thread is for the general discussion of the Article Coil compatibility. Please add to the discussion here.
Coil compatibility
- Thread starter halifaxhops
- Start date
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The spark plugs will only 'take' the voltage they need to ionise the gap. What secondary voltage the coil is able to produce & what it DOES produce to ionise the gap.....are two different things. High end CD systems might dump 600v into the coil primary winding. If the coil's turns ratio is 100:1, then 60,000v can be produced in the secondary...but only 30,000v used.
Inductive ign such as points, HEI etc produce dump less voltage into the pri winding 250-400v so the secondary output voltage is correspondingly less.
Inductive ign such as points, HEI etc produce dump less voltage into the pri winding 250-400v so the secondary output voltage is correspondingly less.
I know there are certain ignition boxes that use only one coil. If you use a different coil they won’t run. Also, the coil can affect how the ignition carries spark energy in higher rpm. I haven’t done a ton of testing with coils and a scope, but I need to.
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