The ignition-system in a classic car is often the source of many problems. After years of use, the mechanical distributor becomes worn and increasingly inaccurate. Although replacement of the standard points with an optical eye or magnetic ignition set-up is an improvement, it does not compensate for the wear in the advance-mechanism, the distributor shaft and bearings within the distributor itself.
The 123ignition distributor is different. It comes in its own aluminium billet and nickel plated housing, although externally similar in its classic appearance to its mechanical counterpart, it contains high-tech electronics on the inside. While maintaining classic appearances under the bonnet, the internal technology makes your ignitionsystem and engine perform better than ever before, and run as smoothly and reliably as a Japanese sewing-machine!
In the video below you'll see the differences in precision of the ignition timing between traditional points, another electronic ignition and 123 Ignition.
MAINTENANCE FREE TIMING
In a 123ignition, all moving parts – like the original points, the centrifugal weights, the springs, the bearings and the vacuum-diaphragm – have been replaced with just one moving part: the central shaft with the rotor. The internal electronics provide the right advance and the optimum dwell-angle throughout the rev. range to maintain peak energy and peak performance. There is no wear altering the timing of the 123ignition: once set, you’ll never have to worry about it again!
SIXTEEN ADVANCE CURVES
With a little switch – see picture – behind an opening in the side of the billet-housing, you can select the best advance-curve for your engine. Why? Well simply because many different advance-curves were prescribed by car-manufacturers. You buy one 123ignition, but you get sixteen different distributors!
Spark Balancing is a technology that ensures that the ignition timing always takes place at the right time, independent of mechanical wear and mechanical tolerances. The microchip in the ignition corrects any timing deviations. The amount of energy that is contributed per cylinder will therefore always be the same. This results in a smooth running engine that delivers more power.
AUTOMATIC DWELL CONTROL
A mechanical distributor has a fixed dwell-angle, sometimes resulting in overheated coils at low speeds, weaker sparks and misfiring at high speeds. Why? An ignition coil only needs a couple of milliseconds to charge, but with a fixed dwell-angle these are ”overcharged” many times when idling, resulting in… overheated coils! At high speeds the fixed dwell angle tends to leave too little time to fully charge the coil, resulting in… weaker sparks and misfiring! The 123ignition measures the amount of current flowing into the coil, in such a way that the strongest possible spark is guaranteed at all engine-speeds, whilst keeping the coil cool. Also to prevent coil overheating, the power to the coil is cut-off as soon as the engine stops.
A summary of all the advantages of the 123 ignition: