Originally Posted by
Bidja
IMO, now that U have max boost set at 15psi and only getting limp holding loud pedal, U are most likely still over boosting slightly under heavy acceleration.
How far have you got the needle valve wound out?
Have to ask this_is the needle valve (if one directional tillix type), connected up in the with the vacuum arrow pointing toward vacuum pick up?
Try leaving Tillix boost controller where is for the moment(max boost 15psi), wind the needle right in (clockwise/closed), start eng and @ idle unwind needle valve and if the actuator rod drops this is correct.
OK, now at idle wind the needle in and check to see if the actuator lever is hitting the vane angle limit stop grub screw (with needle closed). Then gradual unwind needle and when the level just drops a way from the stop screw wind needle back in (clockwise)say 1/4 turn. Go for a drive and let us know what you experience. If limp occurs under full acceleration unwind needle more(say one turn). If no joy, we can have a look at adjustment to actuator rod length.