As you all know, oil that is flung upwards to the underside of the intake, and into the valleys where the lifters reside, runs downhill to the back of the block, is joined by the drainback from the heads and runs down into the back of the engine in the vicinity of the oilpump, and thence into the pan from there.
Well, after my engine flatted my favorite all-time street cam (Hughes HE 2430AL) in 2004, I made a few mods. Since I had already done the high-rpm mods to the oiling system, and was running a hi-volume oil-pump;
#1) I increased the oiling to the top end thru the rocker shafts and increased the drainback of my Edelbrocks by grinding channels back there. This was to provide cooling oil to the valve springs, for the upcoming HE 3038 AL cam, which with 1.6 arms, is grossing lifts of .549/.571, and the spring pressure is enough to regularly go to 7200.
#2) I drilled and chamfered a hole in each of those pockets between the lifters. The idea was to provide drip-oiling in the vicinity of the lobes. Those oil holes I drilled do not drip onto the lobes exactly; and I have no idea where the oil actually goes. Ima thinking it hits other spinning parts, gets smashed into bits, flys around, and maybe some of it bounces off the cam lobes. That was my hope.
#3) To deal with what I imagined would be extra oil landing on the windage tray, I opened up the exit windows by bending the flaps down just a bit. The pan is a Milodon roadrace 8 qt; but it rarely has more than six qts in it.
The car has gone 93 in the Eighth, so she's pulling pretty hard, and I have to think that at least some of the mods are working. IDK if the mods count for anything, but ................. the replacement cam is still going strong, and the engine has racked up a grand total of over 100,000 miles; actually, I think it's pushing 110,000 now.
