Extra oil cooler or radiator?

[uberschnell]

Looking for input on how to best fight the heat on my N54 with the Auto trans. I’ve already upgraded the OEM oil cooler. Now I am trying to decide between a 2nd oil cooler on the driver’s side or commandeering the aux radiator from the Power Package and run that instead.

The car will see very light track time, maybe 2 to 3 times a year. The auto trans heat exchanger is liquid cooled, so I know limp mode from high coolant temp is an issue with these cars, at the same time extra oil cooling may be as/more effective then cooling the coolant?

-Other mods include Cobb, intercooler, intake and midpipes

Any thoughts on which way to go?

[Dackelone]

I would get the PPK (electric)radiator fan. (not the extra radiator - although that would help too) I believe your stock one is something like 750 watts while the PPK one is 1250 watts. I've also heard you can install a 335d radiator fan... but it requires some cutting to install it.