GIAC chip Tuning
Chip tuning is the term commonly used to describe re-tuning the ECU (Electronic Control Unit). The ECU is re-programmed with all VF-Engineering supercharger systems to re-calibrate it for a change in engine dynamics, such as ignition timing, knock control, airflow increase, and air / fuel mixture etc. During testing VF engineers work extensively with GIAC (Irvine, CA) engineers to test and monitor engine operation parameters using diagnostic tools. A vast array of data is collected and used by GIAC engineers to re-write ECU code using their own assembly algorithms and libraries and not generic tuning programs.

Modern chip tuning methods from GIAC include serial programming, bench flashing and flashed chip switching. Serial programming is where the new software is electronically overwritten on the OEM software through the OBD2 diagnostic port. Bench flashing is the process by which the ECU can be plugged into a computer out of the car, for the chip to be electronically flashed-in. Chip switching allows the user to choose which program to run by using a handset plugged into the OBD2 port. Different programs would be desireable for example with high octane race gas.

The software tuning process is instrumental for the efficient and reliable operation of the engine with the added supercharger system.

GIAC have been established in the BMW, AUDI, Porsche and VW industry for almost 10 years and support leading products in each market. This includes special projects such re-writing emissions code for the Porsche 959 to pass CARB certification. Regarded by most as the industry leader for chip tuning in the world, GIAC software is the key to the smoothness and driveability on and off-throttle with VF-Engineering forced induction systems.