A little follow up. Took a long drive and we have this summer weather in the 70-74 last week.
Temp measured at the rear servo area, which is probably the coolest because it is the closest to the cooler return line:
at 65mph it stayed in the 160-165, in town with stop and go 170-173, back on secondary road at posted 55mph, it dropped to 155-158.
on the 2 to 3 mile hill climb, it went to 178-180, on the downhill, it took a while a good 2 miles to return to 170, in fact the trans fluid temp went down after the radiator temp went down -all on D mode-
the last stretch is a steep hill climb that is done in 2 gear , usually 25-30mph because of the sharp turns for 2 miles. There was a lot less increase in the temp of the transmission temp that I expected, it did not shoot over 170, the radiator temp did not go past middle, in fact it was getting colder because of the 2300' level, but it was still in the 60's. In the summer days 80's the radiator goes past the half mark for a long time as it is crawl mode for the next mile, but during this test the coolant temp did not go past the mid level, even as the gate was fubar and I had to let it idle in gear for 5 mins, back up turn around and use the other gate.
Edit: the half mark (or about) is now my normal operating coolant temp, after the CVR swap to the LM3506, the coolant temp jumped from the normal 1/3 to the half mark.
second edit: driving back at night it was 20 degrees cooler at 50ish and the trany fluid temp dropped by about 20 to 30 to 135-140F but speed of 55 or 65 did not increase trany fluid temp. The only increase to 160F was in stop and go traffic in the city from stop light to stop light
Last edited by letank
on Wed Feb 14, 2018 10:55 pm, edited 2 times in total.