Granatelli Spark plug wires.

[DynoDave]

Thanks for the update brigond. Test drive weather should be here soon.

[brigond]

Mar 22, 2014 7:57:05 GMT -5 robertsrt said:

Years ago I was running Moroso Blue Max wires. They are/were silver-coated copper, solid core. Sure they had zero resistance, like you said, as you would expect from any solid core wire. Thats nothing new. BUT I would never run them on anything that had a computer. Bad idea. With the big Mallory coil I was running, I'm sure it was spraying random RF (radio frequencies) all over the place. Thats the stuff you have to watch out for on modern vehicles. And near medical equipment. And they always tell you to turn your electronic devices off while on airplances. Etc.
But on an old muscle car, the caution about the electronic ignition, Pertronix for example, is probably just covering their a**. I'm sure just a simple Mopar orange box would not be affected.
AM radio is affected, to the point mine was useless. FM will not be affected as its different technology.
Maybe the iron donut suppressor will work. But you're right, on a normal street car a person would not notice the difference from a carbon core suppressor wire.

I remember reading some forums that came up while researching these wires. It seems that the " tuner crowd " were using them. I don't recall mention of the wires messing with the electrical system. I was able to get one AM station while in the garage in park throttle didnt affect the noise. Haven't had a chance to take it out yet. Maybe on Monday before the forecasted snow for Tuesday

[robertsrt]

I actually went away from them after a few needed replacing. The boots had cracked. But I gave the remnants to my friend who kept using them for a long time on his race bike. Your steel hood might sheild your radio a bit from the stray RF. Also I think Dodge radios are better than the old GM ones were. The tuner guys computers are very important, but they're probably modern enough they aren't affected. In our local hospital they let everyone use cell phones these days. I guess most problems were either overcome or were blown out of proportion.
Lastly, the thing to remember is for Corvette, GM had to sheild EACH wire with steel braid, the entire distributor went in a steel box and was grounded all together. The body was fibreglass and stray RF went right through it regardless of what type wires were used. If not, customers could never count on getting interference-free AM, and they would get constant complaints. Back then AM was huge. I haven't listed to it in decades!!

[brigond]

My test drive .....I was able to get (am) once out of the garage. I tuned in to the best station and I was able to hear a faint buzz which went away on acceleration . The FM sounded even better but still able to hear a hum on some stations . Acceleration didnt seem to affect the noise. I don't think it sounds any different than before. Keep in mind that only my (one) dash speaker is working. It doesn't sound like a weed wacker buzzing through the speaker.

[robertsrt]

Hey thats great. I bet your metal hood is blocking most of the stray RF out from the antenna. And I do think that Mopar radios are/were better than the GM radio I had.

[DynoDave]

Mar 24, 2014 21:53:54 GMT -5 brigond said:

It doesn't sound like a weed wacker buzzing through the speaker.

And that's EXACTLY what I was worried about. GLad it's NOT doing that.