We have had excellent service from our HE coolers.
We use this model 8001599 from Pacific Oil Cooler Service.
Probably a 15 degree improvement in a very hard airshow environment.
95 OAT. Full throttle, 2900 rpm, stall speed to Vne, for 15 minutes.
Temps would max out at 220 during performance and be at 240 taxiing in with a SW 8406R. Now we see on same hot day, 205 max and 215 to 220 taxiing in.
Call Wayne Thomas at Pacific Oil Cooler Service
909-593-8400