Holden Grey six cylinder dual coil distributor development and final rig testing completed this week. This distributor uses a 3 lobe points cam custom ground for Vintage Racing Developments by Clive Cams in Victoria. An additional coil lead post resides in the distributor cap to communicate to the secondary circuit on the dual rotor button track. This design uses 2 completely electrically independent circuits and two ignition coils, such that each coil only serves 3 engine cylinders and accordingly has very desirable dwell/charge soak behaviour for retention of spark energy at higher RPM.
The ultimate points-triggered battery/coil distributor for use in CAMS historic classes that must retain points triggering. Dwell for each 3 cylinder circuit in this distributor is in the region of 56 degrees (compared to circa 38 degrees for a standard single point/single circuit/single coil/6 lobe cam six cylinder distributor). Six cylinder analogue to 4 lobe cam L34 Torana dual coil distributor.