Originally Posted by Levi
A reinforced crankshaft is forged, it does not increase weight, it increases cost. On the other hand who knows ? There must also be a reason why the new GT-R switched from I6 to V6. The GT-R community also did not approve that move, but now the GT-R is Prosche benchmark.
Quite possibly it could be that getting the RB26DETT to pass emissions was geting harder, just like it was for Toyota's 2jzgte and their Lexus Division's 2jzge in the IS300---each were phased out due to harder to pass emissions tests.