Ignition coil upgrade...anyone have experience with this?

[Dewyaw]

I just found out about these and was wondering if anyone has experience with them. They seem to me like a good way to get tangible engine performance improvements...

https://rippmods.com/collections/je...-jl-gladiator-3-6-high-performance-coil-packs

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[Trlr8tdd]

My friend and I have those on our JKs. They sure seem to feel better but they at least work well. No codes etc.
make sure you order and use the recommended plugs. I changed mine at 130k, couldn’t believe the engine still ran!

 

[gmc1000_1965]

I bought these, honestly cant tell if it adds hp as much as it just helps the ignition. right away I noticed it felt as if the engine was tuned better. I do plan on dynoing someday but I have other mods too. I feel its worth the upgrade

 

[Dewyaw]

I bought these, honestly cant tell if it adds hp as much as it just helps the ignition. right away I noticed it felt as if the engine was tuned better. I do plan on dynoing someday but I have other mods too. I feel its worth the upgrade

Notice any mpg increase?

 

[BigRed97]

I installed these about 2 month ago...I can't say they increased power at all but the cold idle is notably smoother and I gained a solid 1.3mpg (hand calculated on multiple tanks)

Worth it or not... I don't know

 

[HemiMagnum1]

Anyone else with feedback?

 

[Gren71]

Currently got them sitting in the garage waiting for spring. Still need the plugs though

 

[Dewyaw]

Currently got them sitting in the garage waiting for spring. Still need the plugs though

Same....you’re not using the stock plugs? We need different plugs?

 

[KurtP]

I installed these about 2 month ago...I can't say they increased power at all but the cold idle is notably smoother and I gained a solid 1.3mpg (hand calculated on multiple tanks)

Worth it or not... I don't know

This interests me...a consistent increase in mpg would indicate a more complete burn allowing fuel trim to lean out...

Any more details on how the data was collected?

 

[Renegade]

One of the more popular YouTubers put these in, and one of them was bad. It would suck to have to remove the intake again to get a bad part off that replaced a part which wasn't bad to begin with...

 

[Dewyaw]

One of the more popular YouTubers put these in, and one of them was bad. It would suck to have to remove the intake again to get a bad part off that replaced a part which wasn't bad to begin with...

Yeah that’d be terrible....I wonder if there is a way to check they work correctly prior to install?

 

[KurtP]

Yeah that’d be terrible....I wonder if there is a way to check they work correctly prior to install?

Could you Cycle them all through a front cylinder first? Ive never looked closely enough at where they sit.

 

[Gren71]

Same....you’re not using the stock plugs? We need different plugs?

Manufacturer suggests their plugs. I haven’t really decided honestly

 

[KurtP]

Manufacturer suggests their plugs. I haven’t really decided honestly

How are they different?

 

[Gren71]

How are they different?

Haven’t had the time to research spark plugs yet, which is why I haven’t gotten their suggested plugs. I can say that on my KK i installed some e3 plugs at 50k miles and noticed a little better mpg. Granted that was a different engine and probably 10-11 years ago now...so who knows. My first thought is I already have to take the intake manifold off i may as well replace the plugs while im in thete, and ill be around 50k by the time i do the coil pack install

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