gyoung
Well Known Member
I've got a Positech P20002C oil cooler on my recently completed RV-6. It's running hot with oil temps ~220F and CHT's above 400F in even a mild climb. I've been holding off drastic action until I got thru the break-in. It now has 11 hrs and temps have not come down much. The engine is an AFP injected parallel 360 with 9.1 compression, piston squirters and one P-mag w/ normal timing/jumper. Cooler is baffle mounted.
I'm in Houston and so far have been flying in mild temps so I know it will just get worse. The Positech was the go-to in 2004 when I bought it (long build) but I sense it's not enough. Is there an upgrade path from there? I tried to search and follow the lineage but the Positech is so old I can't get a clear understanding if what's in use now (like the SW 8406R) is really any better than my Positech. What are my options for a better oil cooler?
I'm in Houston and so far have been flying in mild temps so I know it will just get worse. The Positech was the go-to in 2004 when I bought it (long build) but I sense it's not enough. Is there an upgrade path from there? I tried to search and follow the lineage but the Positech is so old I can't get a clear understanding if what's in use now (like the SW 8406R) is really any better than my Positech. What are my options for a better oil cooler?
