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read my plugs.....

Old Mar 13, 2010 | 02:49 PM
  #1  
Mike.p's Avatar
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read my plugs.....

i want to get a second opinion on my plugs. im running stock heat range plugs(hell they might be the oem plugs with 47k miles on them) and i think they are to "hot" of a plug for 380hp..i think im starting to hear a little spark knock/detonation(that very slight pinging sound at wot) let me know what you think... my afr's are 11+-
.. i am about to order denso 1 step colder plug




Last edited by Mike.p; Mar 13, 2010 at 03:22 PM.
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Old Mar 13, 2010 | 04:25 PM
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you cant tell anything from pics. thats not how you read plugs. you have to look down deep at base of porcelain.
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Old Mar 13, 2010 | 04:47 PM
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as far as the electrodes go, it looks pretty close to normal. maybe a tad lean, but normal. any breaking up or anything? misfires? if you are gonna change plugs anyway, see if the problem persists. it may not be the plugs at all. good luck.
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Old Mar 13, 2010 | 05:47 PM
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no probs really i just thought i heard a hint of spark knock during wot(faint tinking/pinging sound) figured it was because i have stock heat range plugs making 380 hp.. and hell they might be the oem plugs with 47k miles..lol or got a bad tank of gas

Last edited by Mike.p; Mar 13, 2010 at 06:19 PM.
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Old Mar 13, 2010 | 10:07 PM
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Those honestly look very good, I would just get new ones. Just my .02
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Old Mar 14, 2010 | 10:59 AM
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380 hp and you are running stock plugs? I wouldn't.
Try going up at least one heat range.

Last edited by turbolarry; Mar 14, 2010 at 11:01 AM.
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