Carbon wires were originally designed to cut down on RFI from the wires.
IF.....you use AM radio or CB a lot, you might not be happy changing to solid wires.
There are solid core wires, and then there are solid core wires. This opens up a whole new aspect of ignition wires, but it is worth addressing.
In the olden days all ignition wires were pretty much like any other electrical wire. After all. You just needed to get an electrical charge from one place to another. The best way to do this was with a solid metal core (usually copper) surrounded by an insulator to keep it from shorting out. This worked really well until they started putting radios in cars. (AM, is very susceptible to electrical noise). So the engineers went looking for a solution.
Electromagnetic Interference (EMI) sometimes called Radio Frequency Interference (RFI) (which is simply EMI within the radio bandwidth) is naturally generated when a spark plug system is fired. You are essentially creating a very loud electromagnetic transmitter.
Later, car computers came along which can be even more susceptible to EMI than a radio, and the problem got worse. Manufacturers, looking for a good, cheap solution, settled on carbon core wires. Enough spark arrived at the spark plug to do the job, and the EMI issue was solved through very high electrical resistance.
Still, a solid metal core wire was much superior to the carbon core wire in every way except for the EMI issues. So, how to get back to the advantages of a solid, metal core wire without the EMI issues? This is where Spiral or Hectically Wound ignition wire comes in. By taking a very small solid copper alloy wire and winding it tightly around a special center material, then surrounding it with special shielding. All the advantages of a solid, metal core wire could be achieved and EMI could be reduced to levels even lower than produced by carbon core wires.
Though this wire is more expensive to make. It lasts at least twice as long, delivers much more electrical energy to the spark plug, and the EMI suppression is at least as good as a carbon core wire.
So, no worries with the right kind of 'Solid Core' wires. In fact. Some have gone to these solid core wires to resolve radio or computer issues.
Ron, Do you use a CB or listen to AM radio on your Spyder ? I anticipate that any form of radio isn't listened to on Ron's Spyder unless it comes from his phone. Ron ? Truth or dare time. Share with all of us.
I do not listen to the radio or use a CB on my Spyder. But I can tell you that I have a lot of customers using my wire who do. Maybe one of them will reply.
The manufacturers of the wire I use in my kits claims that EMI will be less than with OEM carbon core wires. If my wire kits were creating EMI issues there is no doubt I woudl have heard about it long ago. I've been selling these wire kits since 2008.
All good questions though. It's important to know as much about a product as you can to avoid getting something you won't be happy with.