I fly a 7a with 180 hp lycoming. oil cooler is baffle mounted per Van's fwf kit. Oil temps are usually below 210 but on hot Iowa days, it will top out at 220 degrees. Some people say this is no problem, but i am concerned about what temps would do if i venture into warmer still places, such as desert southwest usa. I know that cylinder head temps have been lowered by placing the spacer on the rear baffle areas. Has anyone noticed any decrease in oil temps by doing this? Theory being higher air flow and perhaps a change in air flow patterns at the cooler location. One thing i notice is that the lower part of the cooler is in the airflow location that would first cool the cylinder head and then go through the cooler. Does not seem like the ideal situation.
Steve Ciha
Steve Ciha