Originally Posted by brn12345 (Post 1310411)

Subaru has a few part numbers for different cars with different sized oil coolers. Maybe it would be useful if we can find a part number for a bigger capacity cooler from a different model that would work for us?

Originally Posted by Kostamojen (Post 1310014)

Why would you even do that?

Originally Posted by ft_sjo (Post 1310021)

Because it's easy to type random crap on the internet.

Originally Posted by PantsDants (Post 1310025)

What he said. This mod, coupled with an upgraded radiator, should hold up just fine for anything you throw at it N/A. You may reevaluate later if you decide to go bonkers with forced induction though*.

The pros for this setup definitely outweigh the cons. With this, you get an oil warmer, oil cooler, and you don't have to worry about losing engine oil due to core or line leaks. It really seems like the way to go. I simply plan on installing just the oil cooler without upgrading the radiator as I don't see any track use in my immediate future. Regulating under hood temps via cooling the engine oil down as well as getting to operating temp faster is a big win for me. Plus the added peace of mind of reduced oil temps preventing degradation.

* Pretty much talking out my ass here.

Originally Posted by LeeMaster (Post 1311091)

why the hell Subaru didnt do this in the first place

Originally Posted by imom (Post 1310523)

I still like to get get the full part number of the BRZ water bypass pipe in case I need to buy it.

Originally Posted by s2d4 (Post 1311336)

Neither of the options you are looking at require the brz pipe.

If going with a new pipe, much easier to cut the mentioned pipe and bead form it, done, no more kinks and cheaper too.

Originally Posted by imom (Post 1311350)

A picture would be nice to show what you mean... after seeing Kostamojen idea, I may not get the BRZ pipe and just get the rest and wait and see how to plumb the oil cooler.

Originally Posted by CARNZ (Post 1309142)

I'm gonna see if I have time today to do some logging with BRZedit during hard driving.

Realized I forgot to list the part number for the FXT water pipe - 14050AA970...

Ugh my mistake

Originally Posted by imom (Post 1310523)

Is this the Forester XT inlet and outlet connection and what CARNZ had used for the BRZ set up? As shown in the first attachement from Kostamojen's picture?


Thank you Kostamojen for your proposal... your way seems to save the cost of getting another water bypass pipe

Kostamojen's water routing for the oil cooler picture (second attachment)

I still like to get get the full part number of the BRZ water bypass pipe in case I need to buy it.

Originally Posted by Tye300 (Post 1311945)

Running it this way seems a lot simpler.

Originally Posted by CARNZ (Post 1311964)

I was considering that way at first as well, my only concern was if it would possibly cause a hinderance in coolant flow.

The oil cooler inlet is the same size, but the outlet is smaller. Also, all the other coolers are plumbed in with extra piping/lines, maybe Subaru thinks there wouldn't be enough coolant flow to run everything through the cooler instead of each having their own coolant feed.

All speculation, but thats why I ended up buying the pipe and adding the fitting to get the coolant from an additional spot for the cooler.

Originally Posted by Kostamojen (Post 1311999)

FYI that was just an early idea. I ruled it out because the heater hose is much larger than the oil cooler lines.

There is another option other than the FXT return hose for manual transmission cars, and that is the coolant crossover pipe on top of the engine that has a blocking plate that can be replaced with a plate with a fitting from the AT cars so you can run the return line directly to there. It might be cheaper, don't know.

Originally Posted by CARNZ (Post 1314857)

I guess we are exhausting the supply lol...

If we VOR that front hose it'll come quicker and should only add a few dollars to the cost.

Originally Posted by Kostamojen (Post 1317557)

http://i15.photobucket.com/albums/a3...106_213615.jpg
FYI both pipes on the oil cooler are NOT the same, the return line is smaller.

Originally Posted by Kostamojen (Post 1317557)

Couple pics of my parts so far:
FYI both pipes on the oil cooler are NOT the same, the return line is smaller.

Originally Posted by PantsDants (Post 1317635)

So I've got a question about step 2 in the installation:

2. Remove the 24mm union that the oil filter screws on to and set the oil cooler in it's place and thread in the oil cooler connector - 21317AA070. Don't tighten it down yet, just hand screw it in.

How exactly do you remove it? Is it just a nut in the middle that holds the assembly down? What tools are needed?

Originally Posted by CHUMPC4R (Post 1317874)

I've got a question, you mention some coolant will come out when the plug is removed. How much are we talking about? Gallon? Half a gallon? Niagara Falls? Needing two gallons of new coolant leads me to believe it could be a fair bit.

Originally Posted by s2d4 (Post 1317831)

@CARNZ

What parts did you replace with that bulging hose?

Originally Posted by CARNZ (Post 1317974)

What bulging hose?

Originally Posted by ZZT86 (Post 1319473)

Implementing this water to oil cooler has the great benefits cooler oil, engine & under hood temps aswell as eliminating the risk of a destroyed oil line but would you install it on a DD with occasional spirited fangs considering how hot temps get here in oz during summer ? Excellent & worthwhile write up btw :)