HV oil pump and pan capacity

[Glenwood]

If your not willing to properly prep the top half of the engine save your money. Run the stock pump and pan and just hope you never need the reserve. Otherwise get the diegrinder out and due the prep. 10 quarts of oil will be of no advantage if it's all stuck in the heads at can not get back to the pan.
I use the high volume and high pressure system with 3/8" pickup and have had no problems with high speed runs in excess of posted speed limits for hours.
The question is do you really need the extra protection of a high volume system and extra capacity.
At runs of 4800 rpm you have less than 5 minites before there is no oil in the pan with a stock 5 quart system.

Where are the restrictions on the top end?

 

[Glenwood]

back when the max wedge s/s cars were built chrysler recommended not to exceed 15 seconds at wide open throttle. the 1/2" pick-up is to feed the pump. how many people think in terms of feeding oil to the engine but ignore feeding the pump that supplies the oil. the whole thing needs to be thought out from the oil in the bottle to getting the oil back in the pan and everywhere in between. my thoughts are that bottom end bleeders can benefit from a HV pump but needs
to be fed to supply the oil. stock type clearances (no excessive throw off) with 3/8" pick-up will live with a stock pump and 6qts but be reasonable on engine rpm.

The basic question I'm trying to resolve is if my rod/main bearing clearances at .002/.003 need higher oil volume, particularly for a street motor that will rarely see rpms above 5000.
If not, stock pump, pan and pick up is fine. If so, then it looks like a deeper pan, 1/2 pick up and hv pump, and possibly further mods to the block. Just trying to be sure before proceeding. (Electrical is so much easier!)

 

[lewtot184]

The basic question I'm trying to resolve is if my rod/main bearing clearances at .002/.003 need higher oil volume, particularly for a street motor that will rarely see rpms above 5000.
If not, stock pump, pan and pick up is fine. If so, then it looks like a deeper pan, 1/2 pick up and hv pump, and possibly further mods to the block. Just trying to be sure before proceeding. (Electrical is so much easier!)

you don't need block mods and upper end restrictions. the killers are loose clearances and i'm a firm believer that excessive rod clearance is a bleeder. a stock pump should satisfy your needs but if in doubt try the HV pump with a stock pressure relief. I use a HV pump with a stock relief spring on one of my engines and am very satisfied with the results. no matter which pump you get make sure the inlet port on the pump housing matches the oil feed hole in the block. some of the castings are very crummy.

 

[miller]

Absolutely right!
Last toss in, on oil pumps, especially 'new'. I've gotten along great, using most stock oil pumps used. As long as no trash has gone through, and clearances are good, I usually do some cleanup/polishing in the gear area, and put it to work. Last (Mopar) new pump I got, had to do carving, and polishing, before I'd use it...that was awhile back.

 

[mopar 3 B]

3/8" pickup, 6 quart pan. Top has been polished smooth and returns enlarged. Oil 50 Valvoline racing. Carries 85 lbs. at 4800 longest run approx. 65 miles.
This engine currently has 160000 miles on it. Rings are shot but bearing clearenes have changed
Iittle.
I am not posting mph, just consider it well over the legal limit.