Neo, assuming that when we talk about 105 PD we're talking same engine called 100 PD and sometimes 101 PD, there are actually some important differences between it and the 130/150/160 versions,,,
take a look at
this thread by micky,,, some quite big differences: head bolts, block, pistons, conrods, crankshaft, injectors and turbo,,, just to say the more important ones.
this is why I don't believe it can go up to 185hp,,, I'd like to point out that max constant pressure for the VNT-15 is around 1.2 bar after that you gonna kill it,,,
now, we all know that the better performing 130/150 needs way more than that pressure to reach 180+ hp. With this in mind, I'd say that a 100/105 with stock injectors would need higher pressures than a 130/150 does to get to 180+ hp,,, this would mean something like 1.8 bar constant if not more,,,
anybody in here thinking a vnt-15 could take this for more than 1 minute???