# of Electrodes - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Engine Mods Talk about Chevy Cobalt Engine Modifications here.

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post #1 of 12 (permalink) Old 07-31-2010, 01:06 PM Thread Starter
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# of Electrodes

Is there any advantage of having 4 electrodes on your spark plug versus having just 1 or 2?
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post #2 of 12 (permalink) Old 07-31-2010, 01:07 PM
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In theory more area for sparking and better fuel burning, and also in theory less chance of fouling.



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post #3 of 12 (permalink) Old 07-31-2010, 01:18 PM Thread Starter
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so are 4 electrode spark plugs worth getting over typical plugs or is the advantage so minisule it doesnt really matter?
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post #4 of 12 (permalink) Old 07-31-2010, 01:20 PM
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All depends on the quality of the plug to begin with and condition of the engine. In my opinion a standard plug of good to high quality is good enough for a street car with an engine in good shape.



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post #5 of 12 (permalink) Old 07-31-2010, 02:13 PM
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Don't even bother. The Ecotec will run like crap with those. If you're stock or lightly modified, AC Delcos are the best option. If you're heavily modded, NGK's only. Anything else is usually problematic.


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post #6 of 12 (permalink) Old 07-31-2010, 02:21 PM Thread Starter
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which ngk's do you think are best?
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post #7 of 12 (permalink) Old 07-31-2010, 02:43 PM
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What engine do you have, are you running forced induction...etc. I only reccommend the NGKs if you need to run colder plugs for high boost.


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post #8 of 12 (permalink) Old 07-31-2010, 09:42 PM Thread Starter
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2.2 NA lightly modded? A/T if that matters....
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post #9 of 12 (permalink) Old 08-01-2010, 01:07 AM
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Quote:
Originally Posted by mcscars View Post
2.2 NA lightly modded? A/T if that matters....
The Stock AC Delcos should be more than fine.


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post #10 of 12 (permalink) Old 08-01-2010, 04:56 AM
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The multi point plugs started out in mass with the Split Fire many years ago. They were very sought after, and logically it always sounded like they would work great. I have tried many of them from the Split Fire to the E3, and none ever worked as good as stock. In fact I ran the newer E3 in a car for a month, pulled them out and tossed them in the trash. I have never seen anyone really get measurable gains AND sustained performance from any multi point plugs.

The best really do seem to be the Delcos or the NGK IMHO.

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