Spark Plug Recommendation
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I have heard good things from a few folks about the E3 spark plugs. I bought a set earlier this year and planning on trying them out my next oil change later this summer.
http://www.e3sparkplugs.com/
http://www.e3sparkplugs.com/
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Semper Fi, Top. As a former airplane owner, I happen to know a lot about spark plugs and am a maintenance fanatic (I change oil, oil filter, plugs and air filter on my bike every 2500 miles). If you have the same 96" engine I have in my 2010 Street Glide, this is what you want:
- Denso Iridium Fine-Wire Spark Plugs (IXU22 gapped at 0.040") $8 each from rockauto.com
- Harley-Davidson Screamin' Eagle 10mm Phat Spark Plug Wires $20 from Harley
In terms of heat handling capacity, weakest to strongest: copper, gold, platinum, iridium (iridium will handle over 4000 degrees F., 1200 degrees more than platinum). There are basically 2 types of spark plugs: massive electrodes and fine-wires. Massive electrodes are cheaper because they are made of the lesser metals, produce asymmetrically shaped sparks and foul fairly easily. Fine-wires put out a much cleaner spark allowing for better engine performance and increased fuel economy (the Denso center electrode is only 0.4mm thick). Also, the Denso Iridium spark plug has a U-Grooved electrode that puts out a symmetrically round spark allowing for consistent spark production. Check out Denso's website:
http://www.densoiridium.com
Compared to the stock plugs, you WILL notice the difference.
- Denso Iridium Fine-Wire Spark Plugs (IXU22 gapped at 0.040") $8 each from rockauto.com
- Harley-Davidson Screamin' Eagle 10mm Phat Spark Plug Wires $20 from Harley
In terms of heat handling capacity, weakest to strongest: copper, gold, platinum, iridium (iridium will handle over 4000 degrees F., 1200 degrees more than platinum). There are basically 2 types of spark plugs: massive electrodes and fine-wires. Massive electrodes are cheaper because they are made of the lesser metals, produce asymmetrically shaped sparks and foul fairly easily. Fine-wires put out a much cleaner spark allowing for better engine performance and increased fuel economy (the Denso center electrode is only 0.4mm thick). Also, the Denso Iridium spark plug has a U-Grooved electrode that puts out a symmetrically round spark allowing for consistent spark production. Check out Denso's website:
http://www.densoiridium.com
Compared to the stock plugs, you WILL notice the difference.
Last edited by Brooklyn Devil Dog; 06-25-2011 at 05:14 AM.
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