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Spark Plugs for '67 3000....what kind?
- Thread starter Patrick67BJ8
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AUSMHLY
Yoda
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Write, Right and Rite :>0
AUSMHLY
Yoda
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What is the difference between N12YC and RN12YC? R is resistor?
If BP5ES heat range (5) is equivalent to N12YC (12), then why use BP6ES (6) which is a colder plug?
Would a heat range be relevant to using a sports coil or Pertronix Ignitor?
I see a lot of people are using BP6ES or BPR6ES. Is this for both setups of Pertronix or points/condenser?
PS. The anglefire cross reference link doesn't work anymore.
Here's another one: spark_plug_cross_reference_heat_range_chart
Bob_Spidell
Yoda
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re: "R is resistor?"
Yep. According to my scientifically accurate Radio Shack--remember them?--DVM it's about 15 Kohms for an RN12YC. I don't think a Pertronix much cares* which plugs are used, but it does care about the secondary wires; word is not to use stock stranded copper, but I've used them with a Pertronix for many years (25?) and miles (probably over 100K). No resistance--technically, impedance, because it's an inductive circuit--means noise on your radios (and probably your neighbors').
*The primary ignition system, be it points or electronic, is electrically isolated from the secondary system--wire from coil to distributor, rotor, cap, wires, plugs, engine--by the coil. Coils typically have an ohm or two resistance, I think Pertronix calls for 1.5 ohm or so.
Yep. According to my scientifically accurate Radio Shack--remember them?--DVM it's about 15 Kohms for an RN12YC. I don't think a Pertronix much cares* which plugs are used, but it does care about the secondary wires; word is not to use stock stranded copper, but I've used them with a Pertronix for many years (25?) and miles (probably over 100K). No resistance--technically, impedance, because it's an inductive circuit--means noise on your radios (and probably your neighbors').
*The primary ignition system, be it points or electronic, is electrically isolated from the secondary system--wire from coil to distributor, rotor, cap, wires, plugs, engine--by the coil. Coils typically have an ohm or two resistance, I think Pertronix calls for 1.5 ohm or so.