Originally Posted by
BlueRB240 SGTSR20 just use the calum ODB2 bin and mod the air fuel to 13.1-13.2 @ wot.
I think the guy that tuned did 14.1 from 12's AFR's on the base ecu tune and it went from 172hp to 179hp after that we messed with Base timing and 13*BTDC made 181.2hp after that, we stopped messing with it. I'm pretty sure somebody with more VVL experienced would tuned with better results.