upgraded "coil" any difference

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11-27-2012, 10:58 AM

black2000xj

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upgraded "coil" any difference

wondering if there is any proven benefit to a aftermarket "high output" coil?

some say better mpg and performance, some say the factory one is just fine

anybody have a aftermarket coil notice a real difference?

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11-27-2012, 11:02 AM

JeepingDan

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I've installed just a coil before and did not notice much.
I guess if you got a whole kit but I think the stock ignition is hot enough as is.
http://www.performancedistributors.com/jeep4.0.htm

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11-27-2012, 11:25 AM

black2000xj

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Quote:

Originally Posted by JeepingDan

I've installed just a coil before and did not notice much.
I guess if you got a whole kit but I think the stock ignition is hot enough as is.
http://www.performancedistributors.com/jeep4.0.htm

thats what i needed to know

thank you

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11-27-2012, 11:34 AM

djb383

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FWIW, I installed a MSD coil and ignition box in a dd Chevy p/u a while back.......noticed zero, zip, nada "butt dyno" difference. Not knocking MSD stuff, I'm sure it's top notch stuff, just didn't notice any performance/economy difference on the dd.....got most (ok some) of my money back selling it on ebay.