10k Mobil 1 (long)

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quote:

Originally posted by metroplex:
Did they have SL Tri-Syn? I've never seen it in stores - only SJ Tri-Syn and SL Super Syn.

Yep, SL TriSynthetic came out for only about a month. It puzzled me too, since I don't understand why Mobil 1 would bother to do that, knowing that SuperSyn was coming out soon.

I ran the SL TriSynthetic in my sister's car, and it had moly in it, something SJ TriSynthetic did not have. But it also had a lot of magnesium in it, something SuperSyn doesn't have a lot of. There are still a few bottles of SL TriSyn to be found up here in Canada, I saw some last week actually.
 
Many questions ....(pardon any apparent lack of continuity in this post).

This is a dual full flow remote oil mount.

The 9.5 Quart capacity is merely because the "chevy" style mount fits the BIG BIG TWO QUART CHEVY TRUCK FILTERS. The "standard" capacity is 6 quarts with the filter. I may swap to the ford style to incorporate the bypass filter in the future.

The high volume pump doesn't put too much oil in the top of the engine. The 4.0 doesn't give the "Niagra Falls" oil bath that you see on a small block chevy. The oil is restricted to where it's needed ..the rockers kinda "bleed" oil out of them.

I disagree with whomever discounts a high volume oil pump. I'm sure in certain applications that it would not be recommended ....however....

Now a high PRESSURE pump is something I would never recommend unless someone had a dedicated street racer. It is a standard volume pump (maybe beefed up in strength) with stiffer relief springs. The faster it turns ...the higher the pressure. You won't hit third gear and put all your oil into the valve covers @6500 rpm ...and your bearings will have the most pressure at the most extreme loads. This is effectively a standard oil pump with a dead headed relief mechanism (well somewhat).


The high volume oil pump, however, just pumps more oil (about double). The pressure relief remains intact ...your bearing surfaces are refreshed with new lubricant far more often.


Universal averages:

Aluminum 4
Chromium 1
Iron 29
Copper 10
Lead 7
Tin 1
Molybdenum 29
Nickel 1
Manganese 1
Silver 0
Titanium 0
Potassium 2
Boron 30
Silicon 12
Sodium 8
Calcium 1255
Magnesium 545
Phosphorus 702
Zinc 847
Barium 1


As was mentioned ..this was a colder than normal winter. I'm still upset about the base stock depletion though. I hope that Delvac 1 has better results.

I go through Harleysville 5 days a week.
 
The volume of the oil output to the bearings is determined by the size of the bearing oil passages, the actual viscosity of the oil at temperature, and the pressure. With everything else staying the same, the high volume oil pump will just dump more oil back to the sump by forcing the pressure control valve wider open.

An engine built with larger bearing clearances is the one that benefits from the high volume pump.


Ken
 
quote:

The volume of the oil output to the bearings is determined by the size of the bearing oil passages, the actual viscosity of the oil at temperature, and the pressure.

Absolutely ....agreed!!!

stock oil pump:

42 max cold start
24 warm off idle/road speed
12-13 warm/hot idle


high volume oil pump

58 (pressure relief) cold start
58 warm off idle/road speed
42 warm/hot idle

Q: do you think that there is any doubt that under ALL circumstances, given the quoted undeniable physic related qualifications (mainly pressure), that my bearings aren't refreshed in a more timely manner with my high volume oil pump??


This differs radically from a "high pressure" pump. My high pressure is totally due to volume. I don't care if the pressure relief is an open tube to the pan. If I'm at xxx lbs of pressure into xx size passage ...I've got xx volume. I'm pretty sure that it should follow the linear models set for most flows (I'm uncertain of this ..but it flushes in my head = i.e. electrical ..twice the voltage through the same conductor ..twice the current) ...hence if I'm at 42 lbs at hot idle with my high volume pump (well below the pressure relief)...as opposed to 12-13 with my stock pump ...I should have a significantly increased flow at, and to, any point in the pressurized lubrication system.


I'm naturally open to opposing points of view
smile.gif
 
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