Here’s a hot coil at a reasonable price. The IGN-1 shares the same internal core as an IGN-1A, but without the built-in ignitor. This can be used for distributors or coil per plug. Use with BIP373s or an external ignition module. IGN-1 Inductive Coil is vibration resistant, can be mounted at any angle and is one of the few performance coils you’ll find in this price range to add a secondary ground connection to isolate the primary side from the secondary. It uses standard HEI type spark plug wire boots.
Here is the IGN-1 pinout, using the pins marked on the connector (sold separately):
A (towards edge of coil) – Positive terminal, to battery power.
B (center) – Negative terminal, wire to ignition module.
C (towards inside of coil) – Secondary ground, connect to cylinder head.
*Note: For capacitive discharge ignitions like an MSD box, see our IGN1-CD.
Primary Resistance: 0.5 Ω +/- 10%
Primary Inductance: 4.8 mH +/- 15%
Secondary Resistance: 8.5 kΩ +/- 20%
Secondary Inductance: 22.5 H +/- 20%
Output Voltage: 41 kV +/- 10%
Output Energy: 118 mJ +/- 7%
Peak Secondary Current: 100 mA +/- 7%
Arc Duration: 3.2 mS +/- 10%
Turns Ratio 71:1
Standard Dwell: 3.0 mS