Ignition Coil Testing

We performed an extensive engineering analysis of OE DG500 and DG508 to Original Engine Management. The engineers measured winding resistance, inductance and output voltage, spark, energy, waveform peak voltage and ringing, as well as a complete physical and sectioned comparison to OE.

The Findings

OEM^® Ignition Coils look, fit and perform like the original they replace with 100% end of the line production testing. The OEM^® coils also provide an improved secondary winding design (additional winding bays) that helps prevent internal arcing and high-voltage breakdown.

• The OEM^® coils tested 3.7% higher than OE in output voltage.
• The OEM^® coils were equal to OE in spark energy.
• In waveform testing, OEM^® coils’ peak output voltage was about 1000 volts higher than OE.
• The OEM^® coils had a longer spark duration than the OE, resulting in more energy supplied to the spark plugs.

 The OEM^® coils match or exceed the OE coils in all categories and are an excellent replacement exceeding the OE performance.