hi guys,
i' ve done some research but i couldn't find an efficient thread on forum so i decided to ask something about afr.
i am driving 03' cooper s, and i have extra
Alta Performance %17 Reduced Supercharger Pulley
Alta Performance %2 Ligthened Crank Pulley
Alta Performance %5 Altanator Pulley
Alta Performance Top Mount Intercooler
Alta Performance Air Diverter - Water Sprayer
Hamann Headers
Supersprint 60mm mid-pipe
One Ball Exhaust System
Alta Performance Cold Air Intake Kit
NGK Iridum Sparks

my boost pressure is about 1.2 bar, i have also AEM wideband, i read about 11-12 when i go full throttle.. is this ratios are OK or not ? if they are not, what should i read ?

thanx a lot for your help...

 

11.5 is ideal depending on your intake temp's.