OEM Oil cooler from the 2.0 DIT Forester

[w00t692]

I love how people speculate these things don't work well early in the thread. Honda puts one stock on the K20Z3/A2/Z1 engines. They ABSOLUTELY work. I didn't realize it was a question hehe

[EZx2]

Hi,
.will 21311AA170 sandwitch (compl. oil cooler from 2002-2007 Subaru Impreza WRX/STi ) work?

[bakilman]

I have the intercooled Innovate S/C kit on my car. Would it make sense to run that coolant system through the oil cooler? With these cooler temps those hoses are cool to the touch. I'd imagine I could get a noticeable drop in oil temps by doing so. Comments and concerns??

[s2d4]

Originally Posted by bakilman

I have the intercooled Innovate S/C kit on my car. Would it make sense to run that coolant system through the oil cooler? With these cooler temps those hoses are cool to the touch. I'd imagine I could get a noticeable drop in oil temps by doing so. Comments and concerns??

No, unless you want even higher IAT.

[nunonuna]

Did anyone try to replicate plumbing as Cusco oil cooler yet?

[nikitopo]

Originally Posted by Kostamojen

Took 6 months, but finally have proof the oil cooler does something:

Ran the same road 6 month ago without the oil cooler and again today. Both times temps were in the low 70's. I've done a bit to the car since then, but nothing in terms of power. With the tires I have now, I could actually push the car A LOT harder and I even ran it with the A/C on just to make sure I was running the car as hard as possible.

Might be hard to see the video, but the Oil temps are now running 15-20 degrees cooler. At some points the car was running 260 degrees or higher before, now they never exceed 245ed degrees. Thats a HUGE improvement IMO!

What engine oil are you using? before and after the change ..

[Grip Ronin]

The cooler definitely does work but what ive noticed on track is that oil temps will still peak 240ish on a hot day but will cool down really fast when you back off the rpm. In 1 lap on a average small track it will cut to maybe 220s.

[dkostesk]

Originally Posted by regal

This is awesome stuff, nothing worse than an air to liquid oil cooler on a street car. The Subaru engineers chose this method because it makes most sense.

However I don't think your proposed coolant flow will work well because there isn't a pressure gradiant, you have to force the coolant thru the cooler because its a constriction. With your proposal you would want to eliminate the elbow instead of bypassing it.

Hey not sure if you ended up going ahead with this. I'm thinking of doing something similar on a sprintex supercharged 86.

I'm thinking of connecting it to the upper end of the water bypass pipe which runs water from the throttle body.

Does anyone know whether it would get much coolant flow that way?