Right, just thought I update you guys.
Ran a dyno on a Dyna Pack, only had 2 so I had to disengage the 4WD system and run it RWD.
All the numbers are at the HUB.
I ran it 1.47Bar, made 573 bhp at 7500RPM
I ran it 1.55Bar, made 597 bhp at 7500RPM
However, It ran lean on the top at 1.55Bar and therefore the power drop right off after 6500RPM or so.
The redline is set 7500RPM, so thats the issue too.
I think the Turbo can easily make 650bhp at the hub at the top end with a redline around 8200.
The turbo should be good up to 1.8Bar.
So there you are, ancient turbo with not so ancient output.