I like what I've read about them and they seem like good systems, but then there's those people who say they're junk or whatever but I can never really figure out why. I'm so lost on this since everyone seems to have one extreme or the other. Anyone who's used one have opinions?

 

I put one on an 83 Jeep CJ-7 that I had a long time ago. It cured the rough idle. But that was because the original ignition system was a plain carburetor set up.

I was impressed with the plug wires though. I replaced the skinny cheap wires with the 9mm wires from Jacobs and gapped my plugs way over spec. If I remember right, the spec was something like 0.045 and I set mine to 0.060. The difference was very noticeable. Faster revs and a lot more pull. It made sense to me. Better wires, less resistance, more current to jump a wider gap, hotter spark, better ignition.

At one point I removed the Jacobs Ignition thing but left the wires. That's how I noticed the benefit of the wires alone.

 

So the wires were nice and I'm assuming you liked the ignition as well?

 

I put the ignition module and the wires on at the same time and I was impressed with the difference. But at one point, I removed the ignition module and expected the Jeep to be slow again. Nope. It still pulled when I stomped on the gas. So I concluded that the wires were making the difference. Eventually, I left the ignition module off because I solved the rough idle when I sorted out and replaced the vacuum lines.

In short, I wasn't really impressed with the ignition module, and the wires made a heck of an improvement.

 

Go with a good st of wires,like the spiral wound MSD's or Blue Max.However you go, get a low resistance wire,measured in ohms per foot.Lower is better.

 

so it's not worth it to get an igntion? just get a nice set of wires?

 

I'm not saying the ignition module is crap. It may work for you. In my experience with an 83 Jeep CJ-7, it wasn't worth it to me. I doubt I'd spend money on it again. The wires were good though.

 

yes it is worth it as it will aid in a big way to better combustion due to more fire on the secoundary spark

 

Sounds good, I'm gonna look more into the jacobs but I've also been looking at the accel 300+. Anyone have any thoughts on that one?

 

Vert ( Keenan ) Do they sell wires for my 4.6?? I havent checked out there website yet. I gotta get wires, i have a hesitation at high RPM. Im going with coils and wires. But im just as lost as you are. I wanna do MSD wires and coils. But i heard Jacob was nice