This block indicates the type of coil combinations that can be used with this firmware. Some firmware programs will allow the user to select between the different coil combinations on his engine. Note: If you have an intermediate or lower hardware class ECU, you may only use single coil with distributor. Most COP coil per cylinder engines are fired in wasted spark configuration and each coil will have its own driver. (See the wiring diagrams for connections.)

The combo files can be loaded into intermediate or advance ECU’s. In an intermediate ECU only the single Distributer option will be available. In an advance ECU the tuner my select between single and wasted spark.

Note! On the Rotary programs the tuner may select between coil per cylinder or wasted spark. If the engine has the three coil setup where the leading spark plugs are on a wasted spark coil and the trailing are on coil per cylinder, this value is set on wasted spark. The two leading coil trigger wires must be tied together on the wasted spark coil negative. (See the connection diagrams). The charge time for the leadings will combine without overlapping and destroying the coil. Note that on high RPM’s the leading spark will become weaker due to less time available to charge the coil. It has to charge twice per revolution.

Dual distributor
Two ignition coil outputs will be activated and phased to run a dual distributor system as found on the Lexus 1uz-fe and BMW V12,

Single distributor
Only one ignition coil output will be activated and phased to run a single distributor. Old school engines use these types.

Wasted spark coil pack
Coil outputs equal to half the number of cylinders will be activated to run a wasted spark ignition coil. This is a very popular choice on smaller engines.

Wasted spark coil per cylinder
Coil outputs equal to the amount of cylinders, will be activated to COP coil per cylinder. They are fired in wasted spark sequence.

Full Sequential coil per cylinder
Orion does not have the capability to do Full Sequential Spark.

Note that full sequential and wasted spark systems has no performance difference as both types will have a full load on the coil so spark is the same energy. It is merely required for overlap cams and NOS systems Also make sure that firmware is available for your application.