Avoid 1.2 bar?

avoid mid-size turbo
back to k03
etc 



i didnt try fixed wgdc hovewer this turbo pretty linear and i havent problem with controlling it

its about mass air flow because i see maf readings fluctuations when i hear that sound
boost level stays pretty linear with it
after 4500rpm it holds 1.6 bar with no problem but i dont like GT30 style when city driving 

i think its all because turbo cant pump that airmass thru the engine in mid-range rpms and going to left surge area of compressor map
the question is - can we elaborate this with a software or hardware without overbore the engine block and changing the turbocharger unit

yes
but its turned off

What's kfldhbn set to?

Your turbo is poorly matched to the engine for low/midrange boost. It's outflowing the motor at 1.2 bar. There's nothing you can do about it other than lowering boost or changing turbo/cams etc.

Try find an antisurge compressor housing

KFLDRAPP w/ CWMDAPP = 8