I had problems with high oil temps so did three things to improve the Exit/Low pressure side of the system.
1) Remove unneeded "extra" heater ducting 2) Opened up the cowl bottom about three inches to increase the exit air opening 3) Added louvers in the bottom of the cowl. All three contributed to getting the oil temp down to an acceptable level. http://home.pcisys.net/~ronlee/RV6A/Cowl_Louver_Small.jpg Ron Lee
