got some more figures for you
tested a pipe fitted straight into the dipstick tube, just over 10mm outside and soft was a nice squeeze, sealed and held during all the testing.
if your setup is same as mine with oil separator all engine should be same pressure or vac as they all feed into the separator.
anyway with a cold engine already connected to gauge on the dipstick got figures off
cranking = +400pa or 0.058psi
spike of = +700pa or 0.101psi
settled at = +500pa or 0.072psi
let engine warm up a bit before boost values so assume normal running temp.
coasting off throttle still seeing approx. +190pa to zero to -90pa
on boost / load maybe - 400pa still low boost couple of psi
struggled on road to get a good boost figure but for sure was over 23/24psi in 4th a couple of times and saw max values of -1780pa and -1870pa so say -0.27psi
ive no doubt if I could get max boost / load for long enough I would have seen over -2000pa vacuum.
so I don't think values changed much from testing at the catch tank so anywhere in the crankcase , rockerbox , breather system should be seeing similar values (barring blockages or restrictions)
so your looking in the ball park of +0.5psi to -0.5psi or +40mbar to -40mbar
the data sheet you posted looks way too high a range is there a sensor that reads lower lower ?
if anything I would expect your car to have less vacuum as you have a larger turbo inlet pipe diameter so maybe less restriction, although extra cylinder to fill ?