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Author Topic:   Oil pan? Oil Pump???
Dirt Full Roller

Total posts: 54
posted January 24, 2005 12:16 PM  
Im runnin a 350 bored .040 over, three speed yada yada yada. Is a 7 quart oil pan and a high volume pump worth the money, or does everybody just run stock pans, and pumps?

Dirt Maniac

Total posts: 127
posted January 24, 2005 12:44 PM  
if your rules will allow it do it
if not get a stock appearing with a crank scr aper and the baffles about 120 bux or so

racing is way too cool gave up golf for it

[This message has been edited by mrteeshot (edited January 24, 2005).]

[This message has been edited by mrteeshot (edited January 24, 2005).]

Dirt Freak

Total posts: 369
posted January 24, 2005 10:32 PM  
that opens a question for debate

high volume pumps
that just adds more weight to your rotating assembly which in turn robs more power

i use a standard volume but high pressure pump in my car with an 8 quart pan and an oil cooler for a total of 11 quarts every oil change

drive hard or drive home

Dirt Maniac

Total posts: 104
posted January 25, 2005 04:12 PM  
i have had bad luck with hi volumn. i put one in ran it in the main and good bye motor. a guy told me that it pumps to much oil to the top and dont leave enought for the bottom

Dirt Forum Champ
Total posts: 635
posted January 25, 2005 09:06 PM  
Hi volume pumps that pump the pan dry are a result of blocked return passages. The rear return holes in the block need ground out or this will happen.

The holes in the lifters, pushrods and rocker arms only let a set amount of oil to the top end. Doesn't matter if it's a stock pump, hi volume pump, double volume pump whatever, only so much oil can fit through the passages at a given pressure. Actually, if you're not spinning super high revs, a stock volume hi pressure pump would push more oil to the top end. Flow is a function of area and pressure. More pressure or greater area will equal more flow.

A hi volume pump does take more HP to spin though. I prefer clearances a little on the loose side and a hi volume pump. Not a bearing failure yet. I've even run hi volume pumps in GM 60* V6s (3.1L) which only have 4q QT capacity. Turned it to 6000 all the time.

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