Copper plug wires

[kzbill]

I have kept my mouth shut for a while, I had my hesitation and stalling come back.
I always thought that something I did by changing the engine caused the problem.
I thought it must have been something on the new engine that came with the problem.
After much more reading and thinking what could be different I realized besides all new gaskets I replaced the cap rotor and wires.
I thought I was doing the Ignition system a favor by putting copper wires on it there fore increasing spark voltage.
I used to do this on Carburetor cars with standard ignition, always started and ran better.
When I started the car for the first time, I listened to the new radio for RFI problems. I heard nothing!
Turns out the radio is well shielded.
The RFI was affecting the ignition system and causing all my problems.
After I told the two very good mechanics I neglected to tell them I did this they said using copper wires on electronic ignitions is a definite no no.
I feel dumb but I learned something again.

[roycehof]

WOW - You would have thought - GREAT THING TO KNOW!
Thanks for sharing this information.

[nonamekid]

Didn't know about the copper wires problems. I always just get the premade packs of wires for a vehicle. Where did you get copper wires?

[kzbill]

I just asked for a copper universal wire set. They are used on tractors and off road without electronic ignition I guess.
Don't ask for one unless it is for you lawnmower.

[gdawgs]

My Midget has copper wires.

[kzbill]

My '64 TR4-A IRS, My '66 2+2 mustang, '69 2+2, and many others had them too ,

[darkdan]

Like solid core wires?

[gdawgs]

Like solid core wires?

Yep. The ends that clip onto the plugs are copper as well. They aren't insulated so you can see the copper.

[kzbill]

These look just like silicone covered yellow wires with boots on both ends, the same type of boot you would find on any other plug wire, they were a universal set Meant for off "highway use only".
They are a good set of wires for something? you could probably go through a whole bunch of macinations to shield them, but it just ain't worth it. I think they were $12.