After making the final decision to join the ECUTEK team were were extremely excited to get down and dirty tuning the FA20. From common results we had seen up to this point we say some easy improvements After making a few baseline runs it was obvious where these gains were to be had. What were observed was an engine that runs extremely rich @WOT. At redline the AFR was actually 11.2:1 on our baseline runsl never exceeding 12.3:1. So first thing to be done was to remove some of the excess fuel under heavy load.The powerband easily jumped up after tweaking the fuel table a bit. That was the easy part though. Now it was time to get down to the finer aspects of refining our tune. The major issue with this car is that nasty dip heading into 4k rpm and exiting. After looking intot he cam angle tables there were some variances that made this more dramatic than it had to be not to mention the injector phasing between the direct and the port around the same rpm range.
We look forward to working on the Scion FRS, Subaru BRZ, and Toyota GT86. After about 6 hours testing and teaking we had come up with a satisfactory tune for the A/T transmission FA20, Onto the manual......
