Haltech High Output IGN-1A Inductive Coil (Smart Coil)
Haltech High Output IGN-1A Inductive Coil w/Built-In Ignitor (Includes Plug & Pins).
The IGN-1A coil is a high output inductive coil with an internal igniter module. Exceptionally high power levels can be achieved using this ignition coil, all the while retaining the benefits of longer spark duration found with conventional ignition coils.
Under low air flow conditions, such as idle or light throttle, there is very little air making it into the cylinder. Under these condition very little fuel is being delivered as well. For combustion to take place an amount of air and fuel at the correct ratio needs to be present and for the spark to actually hit it. If the fuel being delivered is not atomised very well, as often found with high flowing injectors, the air and fuel will not mix together very well. If so there is a chance that the spark may not actually ignite any fuel, and a misfire occurs. This often is the case when a CDI system which has an intense but very short duration spark. Normally to work around this issue more fuel is added (richer) so there is a greater chance the spark will hit the fuel. Sometimes the ignition timing will be retarded to give more time to squish the air and fuel together to also increase chances of the spark hitting the mixture.
The other solution is to use an ignition system with a longer spark duration. This gives more time for the spark to actually hit some of the air and fuel mix, ensuring combustion takes place. This is why almost all OEM ignition systems use an inductive rather than a capacitive ignition system. With the IGN-1A ignition coil being of an inductive type it offers a long duration spark which provides good resistance to light load misfire.
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