21-10-2024, 08:24 AM
Hi Graham
Silicone is the type of rubber often used for the outer insulation. It's very durable but is irrelevant to this question.
Resistive cored leads of some kind are sometimes required to reduce the level of radio frequency energy that would otherwise upset the electronics. This used to be achieved by a core of graphite loaded nylon "string" that would eventually break down and cause trouble. The typical resistance was a few thousand ohms per foot.
More modern "inductive" cable uses a fine spiral of wire wound over a ferrite core, with a resistance of a few hundred ohms per foot. It's much more reliable.
You might find that copper cored cable in conjunction with resistor type spark plugs will achieve the same result. Many plugs can be cross referenced to a resistor type equivalent.
Silicone is the type of rubber often used for the outer insulation. It's very durable but is irrelevant to this question.
Resistive cored leads of some kind are sometimes required to reduce the level of radio frequency energy that would otherwise upset the electronics. This used to be achieved by a core of graphite loaded nylon "string" that would eventually break down and cause trouble. The typical resistance was a few thousand ohms per foot.
More modern "inductive" cable uses a fine spiral of wire wound over a ferrite core, with a resistance of a few hundred ohms per foot. It's much more reliable.
You might find that copper cored cable in conjunction with resistor type spark plugs will achieve the same result. Many plugs can be cross referenced to a resistor type equivalent.