Hi, my friend has cracked stock pistons, and changed to forged internals. This pistons are lower so he has less copression now. And the problem is, he has now leaner AFR at all conditions, aprox 10-12% leaner. How can i easy and clean add this percentage of fuel, and lett the values in the base AFR map stay ? Nobody wants to see wanted AFR 13:1 and real AFR 15:1 ..... My idea was lower the offset of the Injectors so the ECU will calculate more opening time.... is it right, can it work ?
Thank you for any ideas.