who is running MRL (BAM) Lifters without lifter bore sleeves
If you feel like it, can you explain what the crossover lines do? I say they do nothing. I know you have your ideas on the oiling issue and I'd love to hear them. What you are doing is just moving oil around in a giant circle (that's what it looks like to me) and I can't for the life of me see how that will get oil to the rod bearings at the correct time.
Also, externally oiling the shafts does very little. You still are getting the oil from the system.
I'd love to hear what you think is happening with the oil you've moved.
Sure I don,t mind to explain.
Let me start by saying that both line have nothing to do with oiling the bottom end. At least not directly.
The "S" shaped brake line is tapped into the passenger side main oil galley. You cannot see it when the line is installed but that passage of the block the line is threaded into, intersects with the feed passage up to the rockers on both banks. In other words both banks of the engine are fed direct oil pressure full time from the main galley.
There is an .080 hole drilled inside the main galley that is feeding
The passenger side rockers and the brake line routes to the rockers
On the drivers side.
The other mod to go along with this is you must modify the 2&4 cam bearings. Those bearings have been rotated in the bore so the supply to the rockers is cut off. New 1/8 supply hole were added so the cam bearing still gets its supply from the crank. all five cam bearings have had the feed hole from the crank reduced to 1/8.
But the 2&4 cam bearings no longer feed anything else which will oil the crank better.
The other brake line is just there to get a supply of oil over to the drivers side oil galley to oil the lifters without using number 1 main to do it, Nothing more. The drivers side galley is not reverse flowed or anything and is plugged at both ends.
The bushed roller lifters require a constant supply of oil pressure so I could not run the drivers side dry. This was the primary reason I had my block bushed instead of tubed.
I hope I explained that so you can understand it.