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Expensive Spark Plugs, Are They Really Worth It?
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<blockquote data-quote="vr2turbo" data-source="post: 1063815042" data-attributes="member: 92229"><p>Actually plugs have many differences, but in use, depends on the type and application.</p><p>When you mention expensive plugs last longer, but some do not. Eg. Silver center electrode plugs. They are claim to spark bigger and better because silver is good conductor of electricity, but silver is soft and wears fast. If you mean Iridium, then yes, because they are the hardest material used in plugs now, and now you can find Iridium tough also. Then there are platinum plugs which also can last. In performance wise, I don't think much differences, only durability.</p><p>As for heat range even my standard turbo, Car manufacturer still recommend heat range 6, which is normal. Reading some materials on modding, unless you increase the engine by another 100bhp, then go 1 step colder.</p><p>Then comes design. Single ground electrode, twin, three and even four. Then have split also.</p><p>V cut center electrode, U groove ground electrode, fine tip platinum and finer tip Iridium. All manufacturer claims their design is good, so again got long explanation, bores down to application again.</p><p>I had a fair share of using normal plugs, copper, platinum, Iridium, 4 electrode and now back to normal plugs. My turbo was also using normal plugs, but last service my mechanic fitted a set of platinum back in. To me have same performance only maybe last longer.</p><p>But I did blow 1 set Iridium when it shorted, burnt RM160 there......<img src="https://zerotohundred.com/forums/styles/default/xenforo/smilies/banghead.gif" class="smilie" loading="lazy" alt=":banghead:" title="Banghead :banghead:" data-shortname=":banghead:" /></p></blockquote><p></p>
[QUOTE="vr2turbo, post: 1063815042, member: 92229"] Actually plugs have many differences, but in use, depends on the type and application. When you mention expensive plugs last longer, but some do not. Eg. Silver center electrode plugs. They are claim to spark bigger and better because silver is good conductor of electricity, but silver is soft and wears fast. If you mean Iridium, then yes, because they are the hardest material used in plugs now, and now you can find Iridium tough also. Then there are platinum plugs which also can last. In performance wise, I don't think much differences, only durability. As for heat range even my standard turbo, Car manufacturer still recommend heat range 6, which is normal. Reading some materials on modding, unless you increase the engine by another 100bhp, then go 1 step colder. Then comes design. Single ground electrode, twin, three and even four. Then have split also. V cut center electrode, U groove ground electrode, fine tip platinum and finer tip Iridium. All manufacturer claims their design is good, so again got long explanation, bores down to application again. I had a fair share of using normal plugs, copper, platinum, Iridium, 4 electrode and now back to normal plugs. My turbo was also using normal plugs, but last service my mechanic fitted a set of platinum back in. To me have same performance only maybe last longer. But I did blow 1 set Iridium when it shorted, burnt RM160 there......:banghead: [/QUOTE]
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Expensive Spark Plugs, Are They Really Worth It?