New spark plugs (Denso IK20) - INSANE gas mileage
#32
BahHumBug
iTrader: (10)
All plugs have a copper center electrode. When people talk about nickel or iridium, they're talking about the metal that coats the electrode to withstand the conditions of the combustion chamber. The cheaper plugs use nickel-alloy. I think you'll see from the chart below that iridium plugs are superior in every way except price. And if you add in longevity, they probably win there too.
Copper is simply the best conductor when compared to platinum or iridium. It offers up the hottest spark with the most power behind it. It does not, however, last nearly as long as iridium or platinum plugs. Most performance vehicles will run copper plugs for this exact reason.
Read up.
#33
Partially correct.
Copper is simply the best conductor when compared to platinum or iridium. It offers up the hottest spark with the most power behind it. It does not, however, last nearly as long as iridium or platinum plugs. Most performance vehicles will run copper plugs for this exact reason.
Read up.
Copper is simply the best conductor when compared to platinum or iridium. It offers up the hottest spark with the most power behind it. It does not, however, last nearly as long as iridium or platinum plugs. Most performance vehicles will run copper plugs for this exact reason.
Read up.
Verbatim from NGK: '"Copper spark plugs" is a term mistakenly used for a standard material spark plug. A standard material spark plug traditionally uses a nickel-alloy outer material fused to a copper core.
Almost all spark plugs use a copper core center to conduct the electricity, jump the gap, and promote heat dissipation. However, as an outer electrode material, copper would not be a good choice,
as it is soft and has a low melting point (resulting in a plug that would last minutes, not miles). All NGK spark plugs, including precious metal iridium and platinum, have a copper core.
When one talks in terms of nickel alloys, platinum and iridium, one is referring to its durability, or how long a spark plug will last before it needs to be replaced.' http://www.ngksparkplugs.com/pdf/dyk_5points.pdf
Last edited by aptoslexus; 05-05-14 at 07:03 PM.
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