Over the last month or so, when the turbo reaches full boost in 3rd or 4th, im getting a ticking noise. Done a search on here, lots on ticking but not turbo related.

There no strange sounds on start up or when the engines cold or normal idling, just when on boost in highish gears. Not sure if its placebo effect but car doesnt seem as quick either

Checked oil which is fine so anybody have any clues?

 

Boost solenoid ticks away, and will tick faster with more BDC - you ears may have 'tuned' into that? Nothing to worry about.

Or it could be the PVCS - again, normal.