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Old 09-18-2010, 03:47 PM
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How much Oil?

I'm worried I don't have enough oil right now. I'm running 8 quarts in my 383.

5 quarts for SBC
2 quarts for dual remote filters and about 6' of lines (PH8 filters)
1 quart for remote oil cooler in radiator (this is where I may be short)

The stock 928 5L engine used 9 quarts with out the dual filters, so I'm worried I may now be short. I don't want to run a bearing dry in a hard turn.

Problem I have is my oil pan is not stock in order to fit over the 928 cross member. I can't just fill it and then mark the dipstick with a new reference until I know how much I should really have.

If my dipstick is in all the way, would the full mark still apply since my pan is deeper at the pump end? ie as long as the level is low enough to not cause windage, it'll be okay.

Thanks in advance!

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Old 09-18-2010, 04:11 PM
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I wouldn't compare the 928 eng. to the sbc, my V-6 BMW carried 6.6 qrts and most sbc are 5. What is your oil pressure?
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Old 09-18-2010, 04:20 PM
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Quote:
Originally Posted by Landshark928
I'm worried I don't have enough oil right now. I'm running 8 quarts in my 383.

5 quarts for SBC
2 quarts for dual remote filters and about 6' of lines (PH8 filters)
1 quart for remote oil cooler in radiator (this is where I may be short)

The stock 928 5L engine used 9 quarts with out the dual filters, so I'm worried I may now be short. I don't want to run a bearing dry in a hard turn.

Problem I have is my oil pan is not stock in order to fit over the 928 cross member. I can't just fill it and then mark the dipstick with a new reference until I know how much I should really have.

If my dipstick is in all the way, would the full mark still apply since my pan is deeper at the pump end? ie as long as the level is low enough to not cause windage, it'll be okay.

Thanks in advance!
If your pan is designed correctly- w/the proper baffles and/or trapdoors, etc., along w/the correctly placed and designed pick up, you not only have enough oil- but it could be argued you have too much oil- if the sump is full to where it would have been, had an OEM pan been used.

What I'm saying is, often a deep sump pan isn't filled to capacity. Instead, it's used to lower the oil level down away from the reciprocating/rotating parts. This reduced windage losses and helps to keep from aerating the oil.
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Old 09-18-2010, 04:27 PM
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I would call the level correct in the pan when you have at least 4-5 quarts in the pan, along w/all the oil that it takes to fill the filter and lines. By your figures, this equals 8 quarts- and I would say that's about right.

Remember that the OEM amount of 5 qts. is WITH the filter, 4 quarts in the pan and 1 for the filter. So at 8 qts, you are actually filling the sump w/about an extra quart. Which I have zero problem with, as long as the sump is deeper than the OEM pan.
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Old 09-18-2010, 04:37 PM
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Thanks!

I'm just paranoid about the little things. My 3 week project to swap out engines started last October. That's a lot of time chipping away to forget simple steps.

Lots of idiot checking this weekend before I take a longer road trip.
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Old 09-18-2010, 04:53 PM
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You could add a smart bit of insurance if you added an oil accumulator tank, it would cover the "gap" should the pick-up ever get uncovered in a corner. Using one is pretty much standard practice on a road course car, Canton and Moroso make them, and there may be others.
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Old 09-18-2010, 05:01 PM
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Quote:
Originally Posted by ericnova72
You could add a smart bit of insurance if you added an oil accumulator tank, it would cover the "gap" should the pick-up ever get uncovered in a corner. Using one is pretty much standard practice on a road course car, Canton and Moroso make them, and there may be others.

I have an accusump I still have to hook up. Short of a dry sump it's the next best thing. I'm going to put it before the filters. I just need to order the solenoid. Before I took it off the valve was in the engine compartment and a PITA to start the car then open the valve, close the valve stop the car. I want a switch inside this time. Plus that way I can crack it open as I'm starting the car for a prelube.
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Old 09-18-2010, 05:10 PM
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This is sort of OT, but I had occasion to work on a Tempest that had one of the "1/2 of a 389" Trophy 4 engines in it. He had an aftermarket electric oil pump that came on w/the key to bring up the oil pressure, and would run for a preset time after shutdown.

Worked OK it seemed- but it was LOUD! I don't know if it was all in the way it was mounted, but it could be heard over the radio, the engine, heck- a semi running next to it wouldn't drown it out.

Judging by IT, Accusump for me, too.
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