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-   -   BBC oil pump question (http://www.hotrodders.com/forum/bbc-oil-pump-question-90322.html)

JamesRS 05-26-2006 11:22 AM

BBC oil pump question
 
I've been doing searches about whether or not to put a high volume oil pump back into my engine during the rebuild. As some of you already know I had a cam go south on me and have to rebuild my 454. I had the block cleaned and bumped to 60 over since it was in the shop. (the overbore also cleaned up some cylinder wall scoring) But my question is whether or not I should use another high volume oil pump, or just go with a standard volume pump. The engine config is as follows:

454 (060 overbore - 466)
Lunati - Voodoo 60204 cam
Speed pro h581cp .340" dome pistons
781 oval port heads with comp cams 920 springs and fuller roller rockers
Nodular iron crank with stock stroke
Legend I beam rods with Arp bolts
Stock oil pan

I figure I'll take the engine up to 6000 rpm when at the track, but other then that it'll spend it's time in the 2000 - 5000 rpm range. I've read conflicting posts about whether you should use a high volume oil pump or not, so I thought I'd ask. Should I use another high volume pump, or get a standard volume pump for this combination?

Guy Hiltz 05-26-2006 03:10 PM

BBC oil pump question
 
My LS-6 BB crate mothr has a Mellings M77HV oil pump in it,and this seems to work very good.

LilSmoke 05-27-2006 09:14 AM

I cant think of any reason to use a hv pump unless you need extra oil to help keep the bearings cool in a steady rpm situation. We use em on irrigation engines that see 1800 for 24 hrs,but they have large capacity pans. The ole ZL-1 and L-88 engines had em but they also had bigger pans. Normally a std volume pump with a pressure spring will work fine especially with std capacity pan.

xntrik 05-28-2006 04:12 PM

Use Rotella T oil unless you want to move up to Racing Oil or synthetic.

Flat cams are getting boarder line on the new oils lack of zinc, etc.

JamesRS 05-29-2006 09:07 AM

Thanks for the replies guys, I'm going to use a standard pump with a high pressure spring like suggested. I will also be using the rotella T oil. (that's what I used to break in my cams too) :thumbup:

Cridder 07-10-2012 09:58 PM

Standard or Hi volume BBC oil pump question
 
I wonder how many people here know that the Big block chev high volume oil pump itís much bigger than the standard volume, that a standard volume small block pump and a standard volume big block pump are pretty much equal.
That the Big block hi. vol. falls between the standard and hi. vol. small block pump?
To suggest it's a horse power thief in ether standard or hi volume form would be pure speculation from most.
When someone asks "do i need hi. vol.?" the answer should be "how hot is the oil gona get?" hot oil gets thin, it well move through a system more rapidly when hot, pressure will drop and volume requirement will go up, if volume reserve isnít there pressure will continue to drop with temperature increase.
Metal to metal is gettin to be a big risk.
For those who say "don't bother with hi volume" i say "thatís fine if you never push the limit!!!"

S10 Racer 07-11-2012 08:57 AM

Quote:

Originally Posted by JamesRS (Post 643989)
Thanks for the replies guys, I'm going to use a standard pump with a high pressure spring like suggested. I will also be using the rotella T oil. (that's what I used to break in my cams too) :thumbup:

No need for a high pressure spring. You don't want excessive pressure. Std. BBC pump is all you need.

Cridder 07-11-2012 01:01 PM

Quote:

Originally Posted by S10 Racer (Post 1572866)
No need for a high pressure spring. You don't want excessive pressure. Std. BBC pump is all you need.

Ignore this advice and install the blue spring that comes with the pump,
Cruzing pressure on my 357 small block with 15-40 oil sits at 58psi, (by no means excessive) about 10 psi less at idle, I lug it in my 4x pretty hard at times. cheap insurance imo.

S10 Racer 07-11-2012 04:14 PM

Quote:

Originally Posted by Cridder (Post 1572943)
Ignore this advice and install the blue spring that comes with the pump,
Cruzing pressure on my 357 small block with 15-40 oil sits at 58psi, (by no means excessive) about 10 psi less at idle, I lug it in my 4x pretty hard at times. cheap insurance imo.

Dude, he is not building a Top Fuel engine which operates at 200psi oil pressure. He is building a street motor with occasional track time. There is no need for anything above 20-30 @ idle and 40-50 psi @ cruising speed. A stock pump will get these numbers if all the bearing clearances are right. Your idea of more pressure is "cheap insurance" makes no sense.

Silver Surfer 07-11-2012 04:17 PM

Since this thread is now 6 years old, it would be nice if the OP replied back with the results of his build.

S10 Racer 07-11-2012 05:22 PM

Quote:

Originally Posted by Silver Surfer (Post 1572992)
Since this thread is now 6 years old, it would be nice if the OP replied back with the results of his build.

Thinking the same thing. He must still be busy building it.:P

Cridder 07-13-2012 01:14 PM

Quote:

Originally Posted by S10 Racer (Post 1572989)
Dude, he is not building a Top Fuel engine which operates at 200psi oil pressure. He is building a street motor with occasional track time. There is no need for anything above 20-30 @ idle and 40-50 psi @ cruising speed. A stock pump will get these numbers if all the bearing clearances are right. Your idea of more pressure is "cheap insurance" makes no sense.

Hey can you help me edit my post ? in the first sentence the word "it's" is supposed to be "isn't"
Or can the posts in this thread even be edited being that it's so old?
Thanks


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