Post by
Zero260 »
https://forums.nicoclub.com/zero260-u34180.html
Sat Jan 14, 2006 12:49 pm
the screw is there to adjust the spring tension in the blow-off valve. if it's leaking under boost, or doesn't open all the way(you have a fluttering noise when you shift, instead of a *psht* sound). I had a turbo XS BOV and I had to take the thing apart, and put washers in it to adjust the same thing that screw does.