Ran at Sebring again without a cooler.
Last time (June 2013 in the high 80s and low 90s) oil temps on Day 1 were 290-300*, then Day 2 oil temps were 285-294*, and I was running, and then yesterday, with temps in the 90s, oil temps were 278 to 284.
Weird that oil temps keep getting lower and lower.... In June I was running German Castrol 0w30, yesterday I was running the Toyota 0w20, but theoretically the heavier weight oil should help keep oil temps down. Back in June the car had 1k miles on it and it was the first track event with the car, and yesterday was the 3rd event with 2k miles on the clock.
And water temps on every day have been between 205 and 215, so water temp is fine.
Still not convinced on the need for an oil cooler.
Also had the pleasure of seeing this thing on track. Very surprised to see it running stock calipers! Not sure if they are running an oil cooler.
