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.
Tim just to add a bit more to your comments. Both of these lines are not my ideas. The one mod for full time oiling the rockers is straight from a Chrysler engineer in the stroker small block book.
His explanation is that in the stock system the path from the main galley to the rockers is too long.
If you try to increase the supply to the rockers by increasing supply
Through the 2&4 cam bearings you risk rod bearing failure. I know this first hand on my last build when I used grooved cam journals
Without any restrictions. I lost bearing crush in 2&4 main after 40 passes.
The other line is to avoid feeding the driver side galley from #1 main and starving the #1 main and the rod it feeds. This is well documented for many years by Chrysler.
I did not talk about oil timing because this is a valvetrain discussion
With some members having oil pressure issues.
The way I have done my valvetrain I am hoping for the best compromise of adequate oil pressure by restricting all the lifter bores to.030 feed, but still have a wet pressurized valvetrain.
But this would indirectly help the bottom end as well because these mods create a full priority main system or very close to it imho.
