Re: a question

Posted by Bill from up north on November 19, 2001 at 18:09:30 from (205.200.30.130):

In Reply to: a question posted by randy on November 19, 2001 at 08:28:28:

Initially resistor wires were used for noise suppression so they could use cheaper radios - My dad's 50 Chev radio worked perfect and that car surely didn't have carbon core wires. The other and just as important reason they are used is that they prolong plug life. A vehicle without resistor wires and plugs will only get 10,000 miles on a set of plugs . Nowadays they will go 50,000 or more on a set. The reason for this is that the high resistance allows the voltage through but not the amperage. Its the amperage that burns of the electrode of the plug like welding. By only allowing a tiny amount of current through, the plugs don"t burn off so quick. Nowadays the electrical systems are finely tuned between coil output and total resistance in the wires and plugs. For this reason one should be carefull when replacing either plugs or wires so you replace with equivalent parts. A lot of people wonder why they don't get the same performance out of replacement plugs and wires . Well they would if they used OEM or made sure the replacements were true replacement parts. I worked for a GM dealer for 10yrs and owned many GM vehicles and I always got better service out of OEM parts. One day I decided to do some testing of plug resistance on a couple of different brands of plugs and wires. I found that the other brands didn't have the same resistance --resistance was lower-- and that's why they didn't last (plugs that is).I don't believe there is much difference in the quality of different makes of plugs but the built in resistance is what varies.

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