0301HTP MAGNUM13zoom

The ignition map is pretty much the same in all aftermarket engine management systems, including the new Gen 7. The vertical axis is engine load expressed as manifold pressure; the horizontal axis is engine speed. Once again, DFI offers several generic maps to help get you started, but the significant thing to remember here is that spark lead time is highly dependent on combustion chamber efficiency. The better the swirl and quench characteristics of the cylinder head, the less spark lead time and the more horsepower you will make. Note that the Gen 7 does support knock retard like most modern OEM systems. In our application, knock retard is not currently being used because our Evans cooling system has given us an added measure of octane tolerance, but we could implement it in the future if we desire.

ACCEL Gen 7 System - Magnum Returns

The ignition map is pretty much the same in all aftermarket engine management systems, including the new Gen 7. The vertical axis is engine load expressed as manifold pressure; the horizontal axis is engine speed. Once again, DFI offers several generic maps to help get you started, but the significant thing to remember here is that spark lead time is highly dependent on combustion chamber efficiency. The better the swirl and quench characteristics of the cylinder head, the less spark lead time and the more horsepower you will make. Note that the Gen 7 does support knock retard like most modern OEM systems. In our application, knock retard is not currently being used because our Evans cooling system has given us an added measure of octane tolerance, but we could implement it in the future if we desire. View Related Article

0301HTP MAGNUM13zoom

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