hey on my stage 2 turbo I dropped the boost to 17-18 psi
with the wastgate screw

but the turbo only starting charge at 4000 rpm

how can I do it that it charge earlier but stay the same maximom pressure of 18 psi?

with a boost regulator?? is it good or not every time when you setup the boost you also need to resseting the AFR ?? no

bad idee for our rs turbos?
thanks