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Old 02-14-2003, 07:00 PM   #1
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Default Spark Plugs

Hey gang. I am about to install my MSD Coils and Taylor wires. I was wondering what everyone'* experience was with different spark plugs. I ran splitfires in my fiat, and it made a slight improvement in mileage. Anyone care to make suggestions?
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Old 02-14-2003, 08:40 PM   #2
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AC Delco Platinums! They're made for GM by NGK! Exact same as Irridiums too.
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Old 02-14-2003, 08:56 PM   #3
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I'll second those AC Delco Platinums...they have been great!!!
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Old 02-14-2003, 09:00 PM   #4
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Splitfires are my temporary fix, and they seem to be just fine. But I third the notion towards AC Delco. I'll be getting some as soon as the snow melts.
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Old 02-14-2003, 11:01 PM   #5
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Sortof 4th that motion. NGK V-Powers for me. Good plugs.
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Old 02-14-2003, 11:15 PM   #6
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ac delco plat. are double plat. but they have one fall back, i have done alot of tune ups that the plat. on the ground strap is missing, it falls off., when this happens , it greatly opens the gap and over works the coils.coils are lazy, they only work as hard as they need to. myself, i have NGK iridium plugs in my bonny. they are definitly different than the AC delco plugs.
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Old 02-14-2003, 11:31 PM   #7
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Don't believe the hype.
there are tons of gimicks and few diferences. (at least where performance is concerned)

there are lots of factors ie. mods,wires,ignition ect.
Cars have diferent preferences acording to there spark setup.

dont get plugs that look cool or sound great!
Get plugs that work well in bonnies like yours.

my bonnie likes NGK.
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Old 02-14-2003, 11:50 PM   #8
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definitly on the button with that.
plat. plugs are used for extended life. if it stays attched to the electrode and the ground strap, they have a higher melting point then the steel that the rest of the plug metal.
take a good look at a reg. plug after its been run for 30,000 miles. you will see the roundness of the electrode where it has melted away. plat. plugs dont do this.
iridium plugs are used for an intense fire power. the electrode is much smaller to give you a hotter spark without the heat build up that causes detonation.
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Old 02-16-2003, 01:12 AM   #9
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I used AC-Delco Iridiums, along with Taylor 8mm. wires. And how would NGK-Iridiums be different be from AC-Delco Iridiums, their made by AC-Delco. The NGK spark plugs, on the side said AC-Delco on them.
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Old 02-16-2003, 03:38 AM   #10
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i just got a set of NGK iridium plugs and didnt see ac on them anywhere. i just looked on ac delco'* on line cat. and the best plug that they list is the professional double plat. i went to the ac delso site and did a cross ref to the NGK part number for my car which is 7164, (napa part # NGK7164) and it comes up with no cross ref. for that ngk number. i also took this from the ngk site too:


Iridium IX
The ultimate evolution of a performance spark plug.
It may be time to invest in precious metal futures. NGK Iridium Spark Plugs represent the ultimate evolution of spark plug technology and performance. Iridium allows for a center electrode 75 percent the size of a platinum electrode and 24 percent the size of a conventional nickel electrode.

The fine electrode tip is engineered for greater ignitability. And it'* in the design of the iridium tip that makes Iridium IX a better spark plug. The electrode is not too thin and not too thick. It'* just the right size to reduce the voltage required for spark and to maximize the overall longer life qualities of iridium.


NGK'* new Iridium IX is the personification of these qualities and takes premium performance spark plugs to a new level. A level that is expected from the world leader in spark plugs.

The future has never looked so good.

i hope this helps
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