Half groove main bearings oil the rods for half of the the stroke, starve the rods of oil during the other half of the stroke,AKA crankshaft rotation


What happened to the .003 bearing clearance during
the other half of the stroke... it still has oil in
the gap and is still flowing... the high flow area
in the bearing is cooling time... and in a drag engine
we dont build all that much heat....... JMO