Dry-sump construction

[awill4x4]

I've only just joined this group so have only come in late on this discussion but below are a few pics of a dry sump tank we fabricated at work for a racing Dodge Viper (in fact we've done all the dry sump tanks for all the racing Vipers) (we work as specialist Tig welders for the motorsport industry)
The in car shot also shows the breather tank and radiator overflow and the other shot shows a closer look at the head unit where all the work is done, the bottom half is simply a reservoir for oil capacity. Unfortunately, the pic I took of the inside of the head unit didn't come out but an idea of design can be seen in the drawing on the right hand side where the inlet tube goes into a central tube at a tangent and the oil is spun and it de-aerates and then drops down into the reservoir. The reason for the 2 breathers (one is capped) is the customer changed his mind about the orientation at a later date.
The really clever part is the way the inlet tube (dash 16 in size) goes through the outer shell and is totally separated from the breather section as it is welded internally on a 100mm diameter inner spin tube. The bottom reservoir also has baffle installed at the top to prevent the oil climbing the tank walls under cornering but it isn't shown in this pic.
Regards Andrew.

[Billzilla]

Very neat mate, like it.

[Sam_Q]

hey bill where can I get one of these subaru water over oil coolers? which model had them? is it worth fitting to a 4age 20v engine? how hard would it be?

[The Real Roadrunner]

hey bill where can I get one of these subaru water over oil coolers? which model had them? is it worth fitting to a 4age 20v engine? how hard would it be?

5s camry engines have them also, try wreckers in your area.
they are fairly good but not as good as an external aftermarket one.
cheers
linden

nice thread also bill

[Sam_Q]

thanks, is it directly compatable with a 4age? also roughly what year are those engines?

[The Real Roadrunner]

thanks, is it directly compatable with a 4age? also roughly what year are those engines?

same filter so adapting wouldnt be that hard just use the heater lines/TB coolant for water supply. year model?st204 2.2l hairdresser car should be the same also.

[Sam_Q]

ok neat I will have a look. I think this would have the advantage in that it may help heat up the oil when the engine is warming up because if I am not mistaken the water heats up quicker than the oil, but I might be wrong there.

[Sam_Q]

well i went to the self serve wrecker and every camry I looked at had a 3SFE untill I found one that was in a front end smash, it had the 5S and sure enough it had the cooler. I took it off and it looks great. The guy at the counter was kinda puzzled and asked if it was off some turbo car or something and was really suprised when I said what it was from a camry. He just said "I will call it a bracket, $10 for that then". Heheheheh

thanks heaps for the info guys

[RA40peter]

Thanks Guys,
Some great information.
I am looking at dry sumping my 18RG for my rally car.
Does anyone have any pics or info on the old RA40 Rally cars.
I found the pic posted but after more. Pick up points, pump mounting locations etc.

Peter

[Ben Wilson]

If you want to run a PRC rally car, dry sumps aren't legal.

[RA40peter]

Sorry, bit off topic
Ben,
Thanks, but not going to run it as PRC.

[thechuckster]

There's two full-house race RA40's (at least one would be ex-bathurst) in the Laidley district somewhere - a PM to TerryO or Art Racing might bring up the name of the owner.


edit: any chance of seeing your race car up close?

[brett_celicacoupe]

bringing this up as i may be exploring this avenue for the supra.

is there any car/truck/bus/machinery pump i could use as a scavenge pump as a cheap alternative?

i got a spare SC14 laying around


actually, what about a 5ME air pump?? they have considerably sized inlets/outlets. they can pull a vacuum and can spin at engine speeds.... bill? *runs off to shed to test theory*

[merc-blue]

ive head of powersteering pumps being used with varying results,
If you need a drysump you have spent heaps of money and a extra bit more for a pump cant hurt that much

[Billzilla]

actually, what about a 5ME air pump?? they have considerably sized inlets/outlets. they can pull a vacuum and can spin at engine speeds.... bill? *runs off to shed to test theory*

It'd possibly work, but you really need a volume type of pump rather than a pressure type.
By that I mean the oil pump in the engine doesn't pump a huge volume of oil, but it does it at a relatively high pressure.
The scavenge pump has to get rid of the oil out of the engine and it's also frothed-up and so the volume is even greater. So what you need is a pump that doesn't make a lot of pressure but instead pumps a large volume.
Those pumps are typically like this ->



(From www.bdg.com.au)

- as they move a lot of volume per revolution.

That's why the pump on my racing car engine uses two sets of gears like that (They're from a Holden 308 oil pump, which spins at half engine speed)
The trochoidal gears will work, but it'd be more fiddling around getting the speeds right.