Hey  @ all

i have a coustom golf 5 gti with gt2871R

attachmend:
-original tuned file from the car…( car running good at 1,5bar boost, lambda 0.86,  max air mass 310g/s)  
-The other file is from the internet…I load this for compare.

Hardware:
-   Custom rod and piston
-   balanced crankshaft
-   bigger Intercooler
-   MAF sensor housing change
-   Bigger injektor
-   Another High pressure pump
-   Turbocharger GT2871R

Now change the Turbocharger to Garrett GTX2871R. target now is boost pressure up to  1.8-1.9bar.


who can help me? I get it not 100%