I have been thinking about transmission oil cooling for my 3.4 conversion with 915 (street and HPDE use).
A euro style mechanical cooler seems like the most sense, but then I can not find it in the PP catalog. I am also wondering if this will work with aftermarket reinforced diff side plates and guard LSD (I suspect not, and I am getting both)
Patrick motorsports builds an oil cooler but I have yet to research on how and where it mounts (I have sent them an email).
G50 930 915 911 901 Transmission Oil Cooler System - Trans Gearbox By Patrick Motorsports Porsche & Mid Engine Performance Specialists
Wevo builds a unit, but it is a bit $$$ for me.
Thoughts or experiences would be appreciated.