well that car went from a gt35r to a gt42r. both ball bearings.
the specs of that turbo
max hp 1100
pt number gt42r
wheel diameter 94mm, 102mm
wheel trim 53, 56
ar ratio .60
ball bearing
turbine wheel diameter 82mm
turbine wheel trim 84
ar ratio 1.15
Is a 4G63 really going to spool that? We’re putting a 91mm on our project '73 Camaro (all forged 348cui LS1) and know we’re not going to get good spool 'till after 5k rpm. How the hell is a 4G63 going to spool that!?!?