Spark plug wire or ignition wire is the method by which current flows to the spark plug where it then ignites the air/fuel mixture located in a combustion engine. Spark plug wire is further classified as either wire wound or distributive resistance systems.
Wire wound ignition systems, in which the current flows to the spark plug through the wire turns, can be classified as either inductive or resistive systems. Inductive systems use high inductance to remove electromagnetic interference while resistive systems use high resistance. Distributive resistance systems use a conductive coating, over a Kevlar carrier, through which the current flows to the spark plug. LGM has been manufacturing both wire wound (inductive and resistive circuits) and distributive resistance (conductive Kevlar) ignition systems for over 20 years.
LGM designed and engineered all the components in our manufacturing process, which allows LGM to create a finished product that incorporate a host of variables. These variables include wire alloy and wire size, turns per inch, Ohms per foot of resistance, inductance, ferrite and non ferrite coated carriers, and the size and type of carrier (Kevlar, fiberglass, Klasscore). These variables depend on your specific requirements and your pricing needs.
LGM is able to process textile, Kevlar, Klasscore and fiberglass carriers with diameters as small as 0.015" to as large as 0.100". These carriers can also be impregnated with a ferrite solution specially engineered by LGM to produce the highest amount of inductance in the final product.
LGM uses a technique called spiral winding to wind a variety of alloys and wire sizes which range in diameter from 0.0009" to 0.0060". Using methods developed over the past twenty years, LGM is able to manufacture a product that has the lowest per foot resistance and the highest per foot inductance at your pricing requirements.
LGM’s unique manufacturing process allows us to wind high turns per inch (tpi) ranging from 1 tpi to 500 tpi without any short-circuiting of the individual turns. It is LGM’s policy to wind to the specified resistance +/- 10%. LGM can meet tolerances as tight as +/- 1 ohm if required. LGM manufactures our products on continuous length runs from 500 feet to 100,000 feet. The length of the run depends entirely upon the diameter and weight of the finished product.
LGM also manufactures a distributive resistance product that uses a conductive material applied to a continuous Kevlar or textile carrier. Because of the Kevlar core, this material is also identified as Conductive Kevlar. The conductive coating of this configuration carries the current to the spark plug. The overall resistance of these products ranges from 3,500 ohms to 5,000 ohms per foot and the diameter of this product is 0.045"+/-.