I'm running stock bore/stroke with a YSi-V7. Stock bottom pulley with a 3.8 upper and at about 4500rpm i start getting above 5ms.
Is this about right? I'm a few months away from my fuel upgrade. My HPFP pressure stays good in regards to commanded and actual but my LPFP starts to lag. There is no knock and it does not run lean. I top out at around 5psi boost total. I have not tried to make any adjustments to the fuel system yet because I'm not sure if it would actually help.
Thanks.