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Racers: What's your oil/diff/trans temperatures
I'm trying to get a sense if I'm too hot, too cold, or in range. 2007 Z4 3.0 6Cyl / ZF 6spd / 3.62 rear auto diff with Quaife (non-M diff)
On a 20min HPDE session,
- my oil will hit 250F peak (I run a large CSF 8032 oil cooler up front) Mobil 1 20-50
- my manual trans will hit 224F peak (I have a gear oil cooler installed that starts at 186degF) Motul 300 75w90
- my diff hits 231F peak but quickly drops between turns (I have a gear oil cooler for that as well, starts at 186degF) 75W140 Motul
Any of you who race, where is your limit and why? Have you had issues going hotter?
I used to melt through diff poly bushings often before the diff cooler, blew a few diffs and one transmission before adding these coolers.
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