4AGE Extended sump designs - 5 quarts of oil are better than 4......

[oldeskewltoy]

i hate modified wetsumps now

i would offere a whole bunch of ideas, but none of mine worked effectivey, so i went dry sump.

but generally, no amount of 'wingage' and extra oil will help without GOOD baffling. oil is like water when its hot, so dont think its thick and will run slowly through holes. imho trap doors should seal shut. if you put them in, you gotta mean it.

search for my 1uz wetsump thread, it has a heap of pics of my ideas and failures

1st..... on your efforts/thread... uh wow?

mine are simple... in essence keeping the integrity of the stock pan(which works but tends to not have enough volume) and add some volume.

I DO fully understand your statement that oil flows like water when @ temp...... I did have another thought process... to narrow the grooves to Dremel blade thickness, and then using a Cold type chisel (normally for working stone) add a bit of flair to the grooves by adding a small bevel inward - creating a "funnel" effect inward.

this funnel effect will also tend to keep the oil in the central pan/sump..... (drawing to come)



I do believe the slits are the right thing... because no matter the volume, the chambers are always connected



humorous side note.... Besides Winged Wonder... I had a response in another forum.... Bat Pan

[Gold28]

Have another look at what Oldcorollas has said. When there is no side load, the wings will hold a little oil. When the oil surges under loading though it has all that extra space in the top of the wing to fill which is a considerable volume. I don't see any advantages of this setup over the other design you posted and potentially some risks. More oil is good but not if it means more room to surge. If anything, you would be better flipping the wedges upside down.

Is there any oil surge issues with the standard sump? I haven't heard anyone complain about it before.

[oldcorollas]

More oil is good but not if it means more room to surge. If anything, you would be better flipping the wedges upside down..

thats not a bad idea! i'm sure you could prove it mathematically too it all depends what level the oil is when the car is running

how far down does the dipstick sit?

[oldeskewltoy]

the problem with inverted is there is too much volume at the very base... so it'll need a substantial amount of oil to get it above the pick up screen

There is a flaw in your argument(I think so), that is... I've added a total of one extra quart of volume. Each wedge is only 2 cups... so *IF* I manage to fill one wedge while cornering... there is still 2 more cups of oil to use then in a stock pan...... unless of course those 2 cups are forced back into the other wedge, in which case the oil volume will be no different then stock... and so can't be worse than stock


Here is another pic....

[Gold28]

Ahh right, so the static oil level sits fairly high looking at the dip stick. In that case, it probably will work regardless. Not sure how much will be in the engine (not in sump) whilst the engine is running but you shouldn't have a problem.

Let us know how you get on with it.

[toyboyracer]

Anyone yet thought that in the wedge design (good idea btw) vs a box design

that the volume of oil from the sump (large) area is trying to shift to the wedge (pointy area)

during G cornering would take a fair amount of lateral Gs to get said action ?

I'm old and NOT a physics major BUT really think that the JDM spec idea (1st pic) really sucks

compared to this brilliant concept of oldeskewltoy !

Anyone bar the 2 of us one the same page now ?

[oldeskewltoy]

Further development........ is this a useful addition???




In the last photo I posted there is one significant "hole" still to be "plugged"




that hole is the main sump hole....


Here we have a simple plate(paper for simplicity), weld it to the pick up tube




now this isn't meant for absolute sealing as much as it is for acting more as an additional baffle. Here are a few bi-panel photos for easier understanding...




the final photo shows it fitted under the windage tray




So...????

[allencr]

So...????

For a rally car in neg. G's coming off a jump, but then again there isn't much engine load?
BATPAN!!!!!

[TERRA Operative]

I would think about leaving a gap around the paper piece, or have it lifted a few mm to help with oil drainage.

Have you also looked at crank scrapers etc? http://www.crank-scrapers.com/prod01_B.html