Thoughts on MSD Ignition Coil Rail?

[Amberfire01Tj]

Hey everyone

I am planning on swapping my spark plugs and came across this MSD ignition coil rail for my 2001 TJ and it intrigued me.
Has anyone here purchased this? And if so what’s your opinion

https://www.holley.com/products/ign...Hpjj9fijgRWGP1-qZdv9nr8EZx1vydQBoC6eAQAvD_BwE

Thanks!

 

[Jerry Bransford]

If you're not having problems with your existing Mopar ignition rail I'd stay with it.

 

[BlueC]

OEM will likely be much better quality and last longer. I personally know of a few MSD duds new-in-the-box over the last year or two.

 

[Akitadog]

If you're not having problems with your existing Mopar ignition rail I'd stay with it.

But, but it's pretty red...

 

[Amberfire01Tj]

I was intrigued because our TJs have no power and supposedly this makes some minor improvements

• Boosts Ignition Spark Output
• Elevates Power and Torque
• Raises Throttle Response
• Improved Core Windings for Maximum Output

 

[Obi-Wan]

I was intrigued because our TJs have no power and supposedly this makes some minor improvements

• Boosts Ignition Spark Output
• Elevates Power and Torque
• Raises Throttle Response
• Improved Core Windings for Maximum Output

This is a good question, and we're glad you asked before wasting your money.

Now...

While the I6 is indeed a great engine, power is not in it's blood. You could easily spend a few thousand dollars in "bolt-on" aftermarket wank and gain maybe 10-15hp. You will not notice it. Nothing short of forced induction or stroking will give the humble 4.0 any significant power increases.

Stick with OEM. But don't take my word for it. A quick search on the forums will back this up.

 

[JustDandee]

I was intrigued because our TJs have no power and supposedly this makes some minor improvements

• Boosts Ignition Spark Output
• Elevates Power and Torque
• Raises Throttle Response
• Improved Core Windings for Maximum Output

I pulled the OEM plugs from my engine that were so worn that when I checked gap it was visual huge- the least of them had a .080” gap. Stock coil had no problem jumping that gap, engine was running smooth. I would say feel comfortable with what you got.

 

[BlueC]

• Boosts Ignition Spark Output
• Elevates Power and Torque
• Raises Throttle Response
• Improved Core Windings for Maximum Output

Marketing fluff words at best.

 

[Akitadog]

I was intrigued because our TJs have no power and supposedly this makes some minor improvements

• Boosts Ignition Spark Output
• Elevates Power and Torque
• Raises Throttle Response
• Improved Core Windings for Maximum Output

In the end it's your rig. If you don't mind spending the funds to see if you like it or not, that's up to you.
At least you know what some think about it. I would keep the stock one around though.

 

[Jerry Bransford]

I was intrigued because our TJs have no power and supposedly this makes some minor improvements

• Boosts Ignition Spark Output
• Elevates Power and Torque
• Raises Throttle Response
• Improved Core Windings for Maximum Output

Pure hype, pure bullshit. The OEM ignition rail (and coil) already put out way more voltage than is required for fast thorough combustion. That was done to help reduce emissions and make it more likely to pass smog tests in hopes of keeping the EPA happy. Making the voltage even higher, which is not even likely, wouldn't help in the least.

 

[Amberfire01Tj]

Thanks for the responses to my question.

 

[Amberfire01Tj]

But, but it's pretty red...

douche nozzle ^^^

 

[mike c]

According to Mopar parts website, the coil rail is discontinued. I have bought three coil rails, two from Amazon and last week the MSD hoping it would cure my problem. Does anyone know where to get an OEM coil rail? I am fighting the misfire problem that seems to be unsolvable.
thanks Mike

 

[Amberfire01Tj]

According to Mopar parts website, the coil rail is discontinued. I have bought three coil rails, two from Amazon and last week the MSD hoping it would cure my problem. Does anyone know where to get an OEM coil rail? I am fighting the misfire problem that seems to be unsolvable.
thanks Mike

Discontinued along with many other parts from Mopar…kinda hard to keep it all Mopar

 

[williambmac]

I’m a huge fan of MSD products. I’ve run their stuff on numerous vehicles.
I do have their coil pack on my TJ. It makes no improvement whatsoever.
Spend your money elsewhere.

 

[JustDandee]

I’m a huge fan of MSD products. I’ve run their stuff on numerous vehicles.
I do have their coil pack on my TJ. It makes no improvement whatsoever.
Spend your money elsewhere.

Good info- Probe you for product feedback, has it been a good / reliable replacement for the factory unit if needed?

 

[williambmac]

Good info- Probe you for product feedback, has it been a good / reliable replacement for the factory unit if needed?

It’s been no better than the stock unit. It’s been on for about a year without any problems. I didn’t pay for mine, and wouldn’t go invest in one just for the sake of replacement.
If my original failed, I would just go to Napa auto and buy a stock replacement.
However it did dress up my engine compartment.

 

[Amberfire01Tj]

It’s been no better than the stock unit. It’s been on for about a year without any problems. I didn’t pay for mine, and wouldn’t go invest in one just for the sake of replacement.
If my original failed, I would just go to Napa auto and buy a stock replacement.
However it did dress up my engine compartment.

Thanks for the feedback on this

 

[Kered Nella]

Hey everyone

I am planning on swapping my spark plugs and came across this MSD ignition coil rail for my 2001 TJ and it intrigued me.
Has anyone here purchased this? And if so what’s your opinion

https://www.holley.com/products/ign...Hpjj9fijgRWGP1-qZdv9nr8EZx1vydQBoC6eAQAvD_BwE

Thanks!

View attachment 404318

I have had it installed on my 06 tj 4.0 supercharged i6, first MSD makes a good product with great technical support I run E3 spark plugs there is a definite increase in power and throttle response. To those who bad mouth performance parts use the part before you write an incompetent non factual review.

 

[Kered Nella]

It’s been no better than the stock unit. It’s been on for about a year without any problems. I didn’t pay for mine, and wouldn’t go invest in one just for the sake of replacement.
If my original failed, I would just go to Napa auto and buy a stock replacement.
However it did dress up my engine compartment.

If you just got the part for free and just for looks it's not a good idea to review a performance part with out doing a Dino pull. There is a before and after when installing performance upgrades. Do critical testing and log your notes.