Re: spark plug wire help
Joe,
There's a reason spiral core is the most popular aftermarket cable design for street and strip- it's just a better technology than solid.
I've used solid core cables, including Packard 440, on several cars over the years. They're durable, and unlike OEM type carbon-impregnated resistance wires, solids have virtually zero resistance and don't break down (much) with heat or handling. But like any straight wire with current going through them, they create a strong electric field which induces current in adjacent cables.
That's why virtually every car I've worked on with solid cores suffer from some level of cross firing. Have you noticed how common it is to see a well tuned engine with solid cores miss just slightly while idling? Or see out of synch flashes on your timing light while timing the engine? Cross firing.
Plus solids generate a lot of RFI. This isn't an issue for cars with point ignition systems and no radio. But not advised for the rest of us.
Joe,
There's a reason spiral core is the most popular aftermarket cable design for street and strip- it's just a better technology than solid.
I've used solid core cables, including Packard 440, on several cars over the years. They're durable, and unlike OEM type carbon-impregnated resistance wires, solids have virtually zero resistance and don't break down (much) with heat or handling. But like any straight wire with current going through them, they create a strong electric field which induces current in adjacent cables.
That's why virtually every car I've worked on with solid cores suffer from some level of cross firing. Have you noticed how common it is to see a well tuned engine with solid cores miss just slightly while idling? Or see out of synch flashes on your timing light while timing the engine? Cross firing.
Plus solids generate a lot of RFI. This isn't an issue for cars with point ignition systems and no radio. But not advised for the rest of us.
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