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Opinions on my spark plugs


Elutheros

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How do these look to you? I've been leaning out the cruise mixture so the AFR is running 14.9-15.4 at cruising speed. They look a little lean to me. I'm using a MegaSquirt MSPNP Gen 2 ECM and TunerStudio to tune it.
45054
 


Dirtman

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They look like the wrong brand for a Ford...
 

Uncle Gump

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I thought the positive electrode looked a bit whack... then I noticed the V-power thing.

They don't look to lean to me... but I would switch over to some Motorcraft or Autolites and try again. I have never had any luck running anything else in a Ford. If you're trying to seriously read plugs and dial it in... I would probably index the plugs too before trying to read them.
 

Elutheros

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I had those copper NGKs in there for about 2k miles and just put Motorcraft double platinums in it today. I'm running EDIS ignition with Explorer coil packs so the wasted spark wears the copper plugs out faster.
 

Dirtman

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It's up there.
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It's down there.
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Round.
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I poop in the furnace.
They look fine to me for 2k.
 

Eddo Rogue

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+1 go autolite or motorcraft.
 

Ranger850

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Those are Nissan plugs. lol. Nissan's love NGK plugs.
 

HAWGFORD

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amazon has autolite xp104s CHEAP i posted on it seller autopartsaaa i think $21 including shipping for 8
 

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