I have just plumbed in a boost gauge to my coupe turbo running a regal EDS stage 3 map with a full exhaust bigger intercooler, VXR turbo etc. Since iv had it iv never been fully convinced it is running at its fullest. While in 3rd or 4th gear i get approx 1.2bar overboost and dropping off as the revs rise. . sometimes if i labour it in those gears i sometimes get 1.3bar or so dropping as the revs rise. looking at the regal website it should be 1.5bar and dropping to 1.1. Could i adjust the actuator to increase this? its showing approx 4 threads?
This VXR turbo hasnt been on long so wondering if perhaps its not been set up correct?
Any help or advise would be great.