Oil Cooler Setup

[leeroy_25]

I just wanted to check what the correct cooler plumbing and setup should be on my car. I am running a 20B in an FD3 but using an FC oil cooler. The FC oil cooler looks like a twin pass as it has entry and exit at the same end. one in the top and one in the side. There is also a 3rd fitting which I guess maybe a drain but not sure if it also has a thermostat or something in it as cannot get it out currently and looking through the hole it is adjacent too it appears something might be inside it?
All this boils down to I want to make sure if it matters which way I connect the oil cooler from a point of view of oil inlet and oil outlet? And going on from there I wanted to check on the 20B engine (I guess same for all) Is oil out from the front and then in to the rear by the filter?

Ideally I planned to put hot oil in at the top and cool come out of the bottom but if that plug is something other than a drain that may not work as it is on the top in my install and I assume it would normally sit on the bottom?

Thank you
Lee

[leeroy_25]

Anyone got any info?

Cheers
Lee

[fil_auto]

Hopefully Big D / Sicknote will see this and hopefully be able to advise

Phil

[leeroy_25]

Can anyone please confirm on an FC which line on the engine goes to which point on the oil cooler?? I.e. the front pipe from the engine front plat goes to??
Been all over the internet. Got an FC manual and the pictures in it contradict one another!

Thank you
Lee