Part of the reason it seems I'm off topic is because I try to cover more stuff that is relative to the topic in other posts in one post.
Again, you can say the Chevy oils from 3 different galleries but it doesn't. Just a fact. I mentioned velocity because that's a reason some want a crossover.
What I care about is not telling people to do work that does nothing to address and issue. Why does a Chevy oil without full groove mains? It damn sure isn't because of the oil passages. It has to do with oil timing. Rather than continue to argue with me, why not call David Nickens and ask him. He will tell you exactly what I'm saying. We've had the discussion. When he was running Pro Stock Truck. Also spent some time with him at a race at Delta Park at Portland and when he took over the factory Pro Stock deal.
Again, why tell people to do something that does NOTHING? I don't get it. As a machinist and engine builder, it's sickening to deal with people who pick this junk up and live and die by it. Even though I'm retired I still deal with it on a regular basis. Try teaching someone running ANY ignition box their timing is not what the light says it is, even if the distributor is locked out. It's a fact, but getting the general public to learn they don't know what they don't know is a near impossibility when you can get on the net and be told that the timing light is always right.
Same thing with oiling. The Chrysler system has its flaws. If they had designed Rod oiling as well as they did valve train oiling, you'd have to do nothing and it would not be an issue. But they didn't. It was a carry over from Walter P's time at GM. You can clearly see this looking at a Pontiac.
So, in closing, if you can't make a Chrysler oil at 7500 without doing anything special, that's on you. You don't need to correct the oil timing, you don't need a crossover, you don't need to put oil in at the front of the block. None of that.
Tube the block. Full groove bearings. A HV/HP pump with a decent pan. That's it. If you want to run hydraulic lifters (again, I don't know why anyone would but that's besides the point) drill a 1/16 hole where the tube breaks through the lifter bores and instead of blocking the oil to the drivers side, just restrict it down by about 60%. That's it. I'd say unless you are spending huge resources to see if you can make power at 7500 with hydraulic lifters and not have the valve train hate you you are wasting your time.
You can't fix an oil timing issue with a crossover. Doesn't matter who says you can.
