right guys, got some fucking big issues!!! so fucking livid :@. here is the full story, so be patient and please read in order to try and help me lol.. yesterday we took off the boost controller vacuum lines and got another bit of vacuum and looped the turbo to the actuator, just to eliminate the boost controller incase it was that, that was making it drop boost. So ok, we looped the turbo to the actuator, went for a drive and sure enough she boosted perfectly at like 0.83 i think it peaked. anyway i was pretty happy, so i went home.. later lastnight i went to pick my mate up again to go out, boosted passed him to turn round and it was fucking savage it pulled hard. so i turned round and went to boost again.............. sure enough it fucking dropped off boost again!!!!!!!!!!!!!!! we've spent ALL day taking off boost pipes, checking for holes/cracks and all that, everything is tight. EVERY vacuum line is cable tied on. Yet it is still dropping off boost. im at wits end with the fucking thing right now. *my manifold has been welded up again as it was cracked, didn't make a different. *took off boost controller lines to eliminate the boost controller, make a difference for half hou then dropped off again. *took all hard boost pipes off to check for damage, didn't make a difference. *cable tied all vacuum lines on, didn't make a difference. can anyone help me PLEASE, im absolutely lost as what to try next...