HKS Graphic Control Computer

The GCC is an electronic tuning component designed to add additional flexibility to the fuel tuning capabilities of the VPC, PFC F-CON or F-CON S. The GCC simply plugs into either the VPC or F-CON harness and allows the user to further adjust the air / fuel ratio at five specific rpm points. Each five points offer an adjustment range of 16% rich to 12% lean, in 2% increments, of the base value. Four different selectable rpm ranges allow maximum rpm level flexibility when tuning the fuel curve. The GCC will interpolate, or average between the rpm points of adjustment to ensure a smooth transition of fuel delivery throughout the RPM band.

For F-CON & VPC