Delphi employs winding process methods to regulate the distance of wire between neighboring windings. This regulation is crucial, as increased length leads to higher voltage disparities, generating additional stress that could potentially compromise the insulation and wire coating.
Delphi's ignition coils are engineered to Original Equipment specifications
Delphi's coils are designed and endurance tested to resist the common stresses that cause failure
Epoxy vacuum techniques reduce air bubbles in the epoxy, because having fewer air bubbles increases the epoxy's insulation quality and reduces the chances of energy punch-through failures
Delphi's ignition coils are designed with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues