These coatings, mainly Platinum and Iridium but even Nickel as well, allow a plug to last a very long time at the expense of a hotter plug and higher initial cost. Spark plug manufacturers have created longer wearing plugs by adding special coatings or welding special tips/discs to the copper conductor’s end. ![]() So, while copper is quite efficient at its job, the standard copper plug has a relatively short lifespan. However, unlike standard copper wiring, the copper conductor in your spark plug must survive in the harsh environment of a combustion chamber’s extreme heat and pressure. Almost all spark plugs use copper for the center electrode material, as it is a very efficient electrical conductor (much like your car or home’s electrical wiring use copper). The center electrode of the spark plug carries the conductive material that helps create the spark at the tip of the plug. It is important to not only know the basic plug specifications for your engine (see our spark plug application chart below for more details), but what you should be looking for in a performance spark plug. The more complete the burn, the more efficient your engine becomes and the more power it makes. Therefore, performance spark plugs are available in different heat ranges, conductor types, and more to provide optimum ignition and burning of your air fuel mixture. All these upgrades can and will affect the spark plug’s job of firing the air and fuel mixture in your combustion chambers. They do not consider such hot-rodding updates as advanced timing, higher compression, performance induction, headers, and so forth. These year/make/model designations also only provide data on the original factory spark plug type that was fitted and the parts store brand’s crossover. The typical year/make/model search tool does not work so well when you have a 1929 Ford hot rod with a Gen 1 small block Chevy V8 engine in it from 1963. If you are using a low-octane fuel, you should use spark plugs with a cooler spark.For starters, we all know how frustrating it can be to grab a set of high-performance spark plugs locally. If you are using a high-octane fuel, you should use spark plugs with a hotter spark. Yes, you should also consider the type of fuel that you are using. ![]() Are there any other factors I should consider when choosing spark plugs? Consult your engine's owner's manual to find the recommended gap size for your engine's spark plugs.Ĩ. The gap size for spark plugs varies depending on the type of spark plug. The owner's manual will list the recommended spark plugs for your engine and will also specify the gap size that should be used. The best way to determine which spark plugs are right for your engine is to consult your engine's owner's manual. How do I know which spark plugs are right for my engine? Side electrode spark plugs are less likely to foul out than center electrode spark plugs.Ħ. ![]() What is the difference between center and side electrode spark plugs?Ĭenter electrode spark plugs have a single electrode in the center of the plug, while side electrode spark plugs have a single electrode near the edge of the plug. Double platinum spark plugs are more durable than single platinum spark plugs.ĥ. Single platinum spark plugs have a platinum electrode and a copper electrode, while double platinum spark plugs have two platinum electrodes. What is the difference between single and double platinum spark plugs? Platinum spark plugs are more durable than iridium spark plugs, but iridium spark plugs provide a hotter spark and are less likely to corrode.Ĥ. What is the difference between platinum and iridium spark plugs? What is the difference between copper and iridium spark plugs?Ĭopper spark plugs have a longer lifespan than iridium spark plugs, but iridium spark plugs provide a hotter spark and are less likely to corrode.ģ. They have a hotter spark and are less likely to foul out, which makes them ideal for track use.Ģ. Standard spark plugs are designed for everyday driving, while racing spark plugs are designed for more aggressive driving styles. What is the difference between standard and racing spark plugs? Here are eight frequently asked questions about spark plugs, with answers that should help you make the best decision for your needs.ġ. There are a lot of spark plugs on the market, so it can be confusing to know which ones are the best for your 602 crate motor.
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