Quote Originally Posted by Ben-e-boy View Post
Does this motor have an aftermarket/custom cam? With the stroker kit? (I saw this graph on FB but didnt read the comments)

That fuel it is dumping in from about 2700 is abit odd. I have seen a similar looking graph for a td with a custom cam.

EDIT: scrap that I found and read the post on FB.
Its not so much fuel being dumped but the turbo has run out of legs and cannot pruduce enough air to accomodate the fuel. Probably has a small rear housing to get it to spool and generate the torque early which is restricting the efficiency.