Lee Teicheira continues work on fabrication of cooling baffles for engine. Contemplate using upper versus lower engine oil cooler.
RRY 2023: Someday, I may switch to a top cooler. I have all the parts. The lower cowl inlet pressurizes the lower cowl plenum, which impedes airflow through the barrels and heads. It also complicates the plumbing, and requires the use of an aluminum pump cover, which wears out a lot faster than the stock cast iron cover.