Engine hesitates between 3000/4000rpm - Page 2 - Subaru WRX Forum
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post #16 of 17 Old 05-20-2003, 08:42 PM
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Forgive my ignorance when asking this question, my mechanical knowledge is minute. When talking about cooler plugs, are you refering to spark plugs? And if so, how are ones cooler then the other?
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post #17 of 17 Old 05-20-2003, 09:03 PM
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the electrode setup is different....cooler plugs burn cooler that hotter ones....loweres cyl temps.....somewhat. a cooler plug will decrease your knock somewhat....but only to a point. when you increse boost, and or timing, a cooler plug will be beneficial.....definately. it all has to do with the way the plug is made, how the electrode is in the shell.....materials used...etc etc.....blahblahblah....hope this helps. i tried to avoid the techno babble this time
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