For high performance or racing applications, an efficient spark plug is needed. Such a spark plug operates optimally only within a narrow heatrange, without any consideration for durability. This is not a good spark plug for street automobiles, as a wide heatrange is essential to assure good drivability under all temperature conditions. Heatrange latitude of standard low cost spark plugs for passenger cars has improved, but with major trade-offs. They are designed to offer a wide heatrange only, without any consideration for efficiency. The ignition system has to compensate for low spark plug efficiency and wide spark plug gap caused by wear.

Nology Silver are  designed for modern high performance engines and are the only spark plugs that optimal incorporate all desired properties. The most important decision when building spark plugs is what materials to use. Not the electrode shape. The more than 80 year old original design is still the most successful and widely used. Silver is the best electrical and thermal conductor of any metal, and therefore the best material for the center electrode. In managing the ever changing combustion chamber temperatures, caused by different engine and load conditions, silver is unsurpassed. To prevent plug fouling, optimum operating temperature is reached shortly after start up, yet under full throttle, when things really start to get hot, heat is dissipated rapidly. Silver provides the widest heatrange latitude. As the best electrical conductor, silver assures that the spark encounters the least resistance and virtually no spark energy is lost. Unlike conventional electrode materials, silver delivers the most powerful spark possible and therefore guarantees combustion initiation. The large diameter silver center electrode increases spark carrying ability and with it spark power. Silver is extremely resistant to erosion, guaranteeing a virtually unchanged electrode gap for the life of the spark plug. This greatly extends change intervals. Nology Silver is the most efficient, durable and thermally adaptable spark plug available and delivers the most powerful spark.

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