There was a research paper re-published with in the last couple years where years ago Mopar determined that 1/2 grooved bearings were better than full, and if the upper was only 3/4 grooved it was even better.
Anybody else ever see that?
Better than what? If you are killing rod bearings the 1/2 and 3/4 groove bearings are worthless.
I can say I’ve never seen a main bearing fail from losing load carrying from a full groove. Ever.
But I’ve seen hundreds of rod bearings killed because there wasn’t enough oil out there at the right time.
