0301HTP MAGNUM12zoom

The target air/fuel ratio map is the key to max power and emissions, and functions in DFI versions with and without wide-band 02 control. In standard versions, the A/F target is reached based on a calculation of the air entering the engine. The Gen 7 then delivers a corresponding amount of fuel to meet this theoretical target. In Gen 7s with the wide-band option, a target is achieved by measuring the A/F ratio directly. In naturally-aspirated engines, the A/F target map usually doesn't vary significantly from one engine to another; DFI offers several generic maps as starting points; ACCEL's tech department can recommend one for your particular engine or help you develop one for a boosted engine.

ACCEL Gen 7 System - Magnum Returns

The target air/fuel ratio map is the key to max power and emissions, and functions in DFI versions with and without wide-band 02 control. In standard versions, the A/F target is reached based on a calculation of the air entering the engine. The Gen 7 then delivers a corresponding amount of fuel to meet this theoretical target. In Gen 7s with the wide-band option, a target is achieved by measuring the A/F ratio directly. In naturally-aspirated engines, the A/F target map usually doesn't vary significantly from one engine to another; DFI offers several generic maps as starting points; ACCEL's tech department can recommend one for your particular engine or help you develop one for a boosted engine. View Related Article

0301HTP MAGNUM12zoom

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