Originally Posted by Karack

i'm still having a hard time seeing that people are having oil temp issues with the stock FC oil cooler, you either have bent fins on the cooler, dust blocking air flow or the engine coolant temps are crowding the engine to rise oil temps meaning you have alternate issues to the oil cooler being insufficient.

i mean come on, the FC oil cooler could be an upgrade to a 12L diesel tractor trailer....

the water cooling system is the weak point on the rotary engine, generally not the oil cooling first and foremost. like anything you have to balance the engine, dropping water temps will result in lower oil temps and that is where most highly modified 7's fall short is in water cooling. the 2 go hand in hand because the oil cooler pre-heats the radiator to increase water temps, they moved the oil coolers on the FD which was a step in the right direction but better than that is splitting the air so that the oil cooler does not pre-heat the air going to the radiator because the single oil cooler FDs i would say are actually on the weak side, the FD R1 dual oil coolers are more race-car-ish yet they still fall short of the capacity and cooling of the stock FC cooler.

Originally Posted by Project88Turbo

Your car must have all the air conditioning components removed it you think the oil cooler is preheating the radiator. There is a duct mounted to the condenser to divert the air leaving oil cooler under the condenser and radiator "hopefully".

Vince