Disco 2 Grinding at 2500rev

Just got the disco td5 out from the garage after its not and firts time proper drive of itnfor months and months..and noticed when hard accelerating I get a whirling/grind noise around 2500revs

Gotna video..sounds like its coming from passenger side front. Any ideas ?

Link to two videos
https://goo.gl/photos/ukkXc1zxAsL7kmch8

Might be worth checking the exhust manifold studs. Should see signs of sooting.
Griff

Doesn't the turbo kick in at 2500rpm?