Originally Posted by MSR
Something to think about, the main shuts oil off to pins 1,2,3 at TDC on all 2.5's and non sti 2.0lts.
Mains that supply 1,2,3 pins, the main bearings are not full groove.
Pin oil holes are in the wrong spot too.
The rear main bearing is a full groove, the front and center are not. Yes the oil flow shuts off the rod journals 1,2,3 at TDC.
I dont beleive the pin hole position is causing oil starvation. The oil isnt getting to the rod journal because of the crappy cross drilled mains.