Appreciate all the commentary and suggestions. I think I have a reasonable bracketing on various recommended temperatures except for the oil temperature (251 F). The newness of the engine may be contributing some extra heat. Another factor could be the prop: I don't know for sure if the Sterba 52X52 prop is right for my airplane. Might be lugging to much and producing more heat and less power. I will have to play with the engine tuning for next flight. My plan is to keep the existing oil cooler setup. Added will be to blow some fresh air on the bottom of the engine sump. The sump has cast ribs and some tapped holes; just the thing to fasten some sheet metal. I saw a baffle arrangement on a KR website, but cannot find it now. I remember how that looked and can adapt that baffle arrangement to my VW installation. Also means yet another mod to the cowl and even more down time. Gotta do what you gotta do. Does anyone have any info on cooling the VW oil sump?
Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA
