I have read a lot about it. Your spark will not improve at all. The so-called "Viper" coil is just a 6-cylinder minivan coil, which is basically the same coils in our coil rail stacked on top of each other instead of mounted in a line. The coils fire exactly the same way, with exactly the same power, diminished ever so slightly by the resistance introduced by the extra connectors and spark plug wires. You will not get a hotter spark by doing this. The only improvement you might see is in the replacement of worn out coils with new ones, which you would get anyway with a replacement coil rail.

You might have other legitimate reasons for doing it, but don't delude yourself into thinking this is an improvement over the stock rail.

 

we can try and cut of the male plug on the coil pack I guess any wiring will work as long as it is 4 electrical wires that match both ends of the plugs. And idea what year caravan? Or does it not matter.

 

the improvement I am looking at is not to get a hotter spark but so I am able to test each plug or replace just one if I have to. With the coil pack you gotta take the whole damn thing off to do that.so this is basically just to make it easier on me with replacing plugs which to me is an improvement to my Xj since it's a 2000 and the coil pack just sucks for replacing plugs.

 

I mean I could always just order the plugs but it's around 45$

 

Sorry I don't remember, I just got a good looking set off one in the junkyard and paid $1 a piece, wanted to make sure everything worked before I spent a lot of money. I have not gotten around to cleaning it all up, today I am finally building a bracket around the overflow bottle out of sheet metal to mount it.

NOTE:
Although I did this swap a year ago, the jeep has been just sitting as we played musical cars for my daughter (this will be her trail rig), just got plates and insurance on it recently and started driving it vs. moving it around in the yard, around the 2nd day the ignition started cutting out at 3000 RPM's after it warmed up like a rev limiter, I am guessing it is a bad coil (I got it used from a buddy) so I am swapping in an Airtec coil in today like those in the initial write up used, and making sure it is grounded mounted to a bracket.

 

Picked up a caravan coil with the plug from the junkyard today. The plug on it look easy to harvest.

 

Well I just replaced my used coil with a new Airtec one and it runs GREAT now !!!!!!

 

Out of curiosity, how often do you find yourself having to test individual spark plugs? I have owned my 2000 XJ since I drove it off the lot in June of 2000, and I've never once had to do that. What's happening with all these 2000 XJs that people are having to check their spark plugs all the time?

 

Well mine is a trail rig, and abused harshly. Its not uncommon that I will have mine with water over the hood and and times can Hydrolock it by sucking water in the intake. I have a couple of times in the dark had to remove that long coil and pump water out of my cylinders. Getting to that wire in the back by the firewall SUCKED, especially over a hot motor.

Heck there has been times where we got water in the gas tank through the fill cap to the point the jeep won't run right.

I also had times where the Jeep has been dead in the woods, ever try to check for spark with big long coil and a plug?

Plus I have a 96 motor, sure I could and have built brackets for the coils, but now I don't have too.

And the stock coil runs $80 at least, I can order the Airtec for $42, as well as if I blow a coil out in the woods and I am trying to troubleshoot it, I now share the same coil as the JK.

Besides, I wanted something different, for some reason it is as of lately quickly catching on. I don't think there is really any performance advantage to it, if I was not out in the mud and deep water all the time I probably would not have done the swap.

It certainly isn't a must due mod by no means, its just something to do to make your jeep a little different.

 

Do you think the majority of people who do this mod are actually driving their rigs the way you do?

I wouldn't argue with this reasoning even for the mall crawlers. But there seems to be an awful lot of people doing it just as a fad, like angry eyes.

 

It's a functional fad. Unlike angry eyes which is just cosmetic.

Again it's also cheaper than a jeep OEM coil.

Some people like the peace of mind knowing they can diagnosis the problem if it ever occur again.

Some people want their engine bay to look different from any other 2000-2001 there's nothing wrong with that.

 

It is a cheap and easy mod to make your jeep a little different..... that is what I think most think.

^^^^^ What XJWonders Said ^^^^^^

Personally I don't care about Cold Air Intakes that take up the stock airbox space, sucking hot air and making a great water injection point, but for some they don't cross deep water and like the way it makes the engine bay look.... just not my cup of tea but to each their own, I personally rather have a cowl intake (I have the Spectre cowl intake), and that would be what would be on my daughters if they did not stop making them (damn K&N for buying Sprectre and screwing it up), she will now getting a snorkel installed instead.

 

yeah I'm getting that one Or a Napa one

 

Well said my friend

 

just out of curiosity do you wheel your XJ ? Lifted ? Or just have a stock ?to each their own everyone is entitled to there own opinion. But having this mod is very helpful and gives it a better look everyone wants to have something different from someone else when it comes to having a Cherokee and usually it's hard to come by when someone does a build they see something different and oh I wanna do that ! So as far as the jeep viper mod goes not everyone does it because well let's face it not everyone has the 00-01 because of the head issues and you can't do this mod with the 99 and below because of the cap and rotor. So yes it's basically to make it easier then replacing the annoying coil pack and for a different look.