[WhatsADSM]

Originally Posted by turbo v6

I have good results with this:

http://www.burgertuning.com/sport_oil_cooler_valve.html

My oil temperature stays below 250f. The highest it has reached is 245f. Even with 90f+ outdoor summer temps.

This is with the stock M Sport package oil cooler and upgraded FMIC.

That valve simply forces the stock thermostat to open all the time. IMHO that's not a good solution (for a street car even) and definitely wouldn't change anything at the track where the oil thermostat is open anyways. In a track situation you are completely relying on the cooler to keep things under check (where it seems marginal on the N55 and inadequate on the n54).