If you increase the valve pressure (turn in the screw), you increase the valve's resistance to opening at lower vacuum levels, meaning part throttle or at idle but you also increase the occurrence of compressor surge, which is what a BOV is there to prevent in the first place.
To all the gurus out there! I'm new here and this is my first posting.
I'm going to buy my ER34 GTT tomorrow (closing the deal). But I have not done any research on this car. I would really appreciate any info in...