Special spark plugs are a strong trend in the automotive sector, but they still cause many doubts among motorcyclists. Made of noble materials, special spark plugs provide a significant improvement in fuel burn, generating an improvement in vehicle performance. The technology of special spark plugs has been increasingly used in new engine projects, in various categories. Ignition system specialist, NGK launched two lines of special spark plugs for the aftermarket: G-Power, of Platinum material and the Iridium IX of Irídio, enabling the use of this category in cars that left the factory with conventional spark plugs. This change provides an improvement in vehicle performance only with the replacement of the spark plug, without requiring major changes to the engine.
Material Noble The main characteristic of special spark plugs is the presence of noble materials in their composition. “As conventional spark plugs have a nickel electrode tip, the special ones have tips produced in Platinum or Irídio ", explains NGK Technical Assistance consultant Hiromori Mori. The use of these noble materials makes it possible to reduce the diameter of the electrode tip.. The G-Power models, for example, have a diameter of 0,6 mm. In the case of Iridium IX that value varies from 0.4 to 0,6 mm, As for conventional spark plugs, this diameter ranges from 1,9 to 2,3 mm.
Performance improvement. According to Mori, the fact that the tip of the electrode of the special spark plugs is thinner than those of conventional spark plugs means that this type of part has more energy to start combustion, resulting in better burning of the air / fuel mixture. "That condition, together with the fact of having a better facility to generate the spark, enables the vehicle to perform better, with agile responses in acceleration and better speed recovery ", Mori explains. Inching stability and faster starts are also other benefits these special components bring to the vehicle..
Iridium or Platinum?. Platinum and Iridium pieces, marketed by NGK for the aftermarket, like G-Power and Iridium IX, respectively, they have quite similar performances. "The difference, in this case, is that G-Power has a better cost-benefit and can be applied in original factory engines, without any special repair. Iridium IX stands out for its durability and resistance to charring, can be found in colder thermal degrees, what makes possible its application in vehicles with a certain preparation in the engine ", says specialist Hiromori.
Emission reduction and fuel economy. The most effective burning of the air / fuel mixture in addition to resulting in better response and performance, contributes to the reduction of pollutant gas emissions from the vehicle and fuel consumption. "Those are, inclusive, two important factors in the industry's decision to upgrade its ignition systems and opt for special spark plugs ", the consultant comments.
Application in vehicles of all categories. Previously present in only vehicles that were considered to be in the premium segment, special spark plugs can already be found in the most diverse categories of cars. "G-Power and Iridium IX spark plugs have a wide range of applications, covering a large part of the circulating fleet in the country and enabling the use of this technology by different types of vehicles ".
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