Spark Plug Wires - Whats the deal ?

For the most part its alot of hype, not more than a couple horsepower between any wire.

I agree. Comparing like quality will reveal little difference. We use Moroso but the Firecores are also very good.

i like the MSD's but may try the Firecores when the MSD's get old, if the price is about the same.

I don´t want to hear a Radio on my Dart... just the sound of the engine...

I´m just worried about the interference on my EFI circuit.

if I could run solid wires I would. but Mallory says not to with their hyfire box so I wont. I would run them with a chrome box though without hesitation.

As for resistance, just remember this, before the plug fires, there is an OPEN circuit. Infinite resistance. Once the arc has sparked, and the wire starts conducting, the resistance goes down.

theres a lot of complicated math and engineering behind a spark plug firing but to make it stupidly simple, lets assume its as simple as ohms law.

if you do, you can see the difference in spark voltage between a 50 ohm wire and a 500 ohm wire is negligable at a given current. E=ir so figure a 1 amp current (not sure what it is in the real world but 1 amp is close enough for this calculation). lets use a firing voltage of 20,000v (just picked it out of my butt)

with a 40ohm wire, that would give you the voltage at the plug as 1amp=(20,000-x)/40 so x=19,960v

using a 400ohm wire, you get 19,600v firing at the plug. not much of a difference in the real world.

With that said, im sure I made a mistake somewhere and someone more experienced than me will correct me.

I will say that am running the firecores and like them alot

dart_73,

PM jake68, he has great knowledge on this issue!

Firecores, Sunroofgtx great to deal with! Bought a set last year.

I'm running Moroso Ultra40's. So far, the best wire I've ran on my Fury. I tried Accel's, MSD's, & Taylor.

I did have a set of the Firecores when I first built the engine. But, to be fair, I shouldn't have used them for the break in. The heat from the headers killed them & caused the terminals to seperate from the wires when I tried to the change the plugs. I do want to try them again now that it's broken in, but I need to wait for the Ultra40's to go south first.

on my junk, ive ran solid core jacobs, ive also ran msd's, taylors, mallory sidwiinders, and moroso wires and there wasn't a lick of et difference between any of them.

if i wanted a good blacvk wire id most likly go with the firecores to support them, but i like red wires so i typically run moroso's

Firecore here great wires and price

has anybody done any runs or dyno tests with different wires?