Thread: cooler with a bigger sump?

bigger oil cooler or
maybe adding fins to the sump,,
hey dont laugh,,
how do you think air-cooled motorcycle engines work

How much bigger could you go without the sump getting in the way of the axle housing when articulating?


Would dry sumping the engine be to expensive to be an option?

Originally Posted by dobbo

How much bigger could you go without the sump getting in the way of the axle housing when articulating?


Would dry sumping the engine be to expensive to be an option?

Why would that improve cooling? Depend on where and how big the oil tank was and how big an oil cooler was used, surely.

John

Sometimes a leaking head gasket to the valley will cause them to run hotter. Mine (77) used to heat up a tiny bit over 110 Kmh. It didn't like cruising over 3000 RPM
IMHO you do not need a cooler or bigger sump anywhere in Australia if you use good oil and change regularly.
I have driven a 3.5 from Amman to Riyadh in August at ambients up to 50-55C at 120 KMh until about 10AM , when pegged oil and water temp slowed me down. There was a lot of oil used but no damage. And that was in 1985 using only Shell Helix 20-50.
That is pretty extreme but just to illustrate that you would not reach those conditions often or ever in Australia.
Unless you want to tow a van in 40c plus of course.
Regards Philip A

I personally wouldnt be too worried about the oil capacity modern oils are well capable of dealing with the temperatures generated in a 3.5 V8.
You may not want to hear this as you have already replaced the radiator but not all radiators are equal.
You can have the radiator recored with a more efficient core (more rows).
I personally have towed a 30 odd foot caravan in temperatures up to 53 c
I cant remember what the core was called it may of been HEI
If in doubt ring Keith Maskell at Maskell Welding in Alice Springs he is an old semi retired guy that has forgotten more about radiators than most experts know.

I would be looking very carefully at the head gaskets on an older V8 that is doing this

Originally Posted by JDNSW

Why would that improve cooling? Depend on where and how big the oil tank was and how big an oil cooler was used, surely.

John

I was thinking of the possible increase in capacity

• You could get the oil sump away from the hot exhaust.
• You have the ability to fill the voided space with a big oilcooler
• You can have a massive capacity oil tank in the back of the car

If done properly it could have a considerable drop in oil temperatures?

The v8 has an oil cooler option - i've seen a Stage 1 ute with a factory one fitted. There must be info somewhere on how this would be fitted, and an aftermarket one would be able to be plumbed in the same.

There would be a little more oil in the cooler, but the direct cooling would be better than more oil.

don't get me wrong here it doesn't over heat often but after say a few hours of soft sand work on a hot day the temp does get very close to the red line.

I was just thinking of different cooling options.
Cost is an issue so I wouldn't really want to spend a fortune.

The radiator I replaced wasn't new but in very good condition. I soaked it in a very mild acid solution before rinsing out with couious amounts of water.

Maybe it's time to get it rodded out and an engine pressured flush?
I think that would only set me back $100 or so.