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It is general question concerning DENSO SPARK PLUG that is often.
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Is there a standard for differentiating the uses of Iridium Power and Iridium Racing? |
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Iridium Racing uses a platinum tip for the ground electrode and a high strength fine insulator for racing. Also, there is a silicone coating on the insulator giving it an increased resistance to
carbon fouling. However, because of the withdrawn spark position, the Iridium Power has the high ignitability of the two. Instead, because of the "extension" in engine revolution felt by many at high revolutions, it is popular with customers who race. Choose "Iridium Power" for response and "Iridium Racing" for high revolutions. Iridium Racing is particularly popular on the circuit scene. (In the '03 Motegi 7 Hour Open, it was found that 45% of the vehicles used Iridium Racing *) * DENSO findings |
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