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      06-09-2025, 12:36 PM   #6
tdott
S.FL S65 Specialist
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Drives: M3
Join Date: Nov 2010
Location: South FL / 6ix

iTrader: (4)

Down here in FL, it's pretty hard to keep a DCT car cool at a fast pace.

Setup:
Do88 DCT, Do88 Oil, Do88 Rad + Water wetter. Oil Diverter Valve. 200tw tires.
Slon Pan + 1L Banjo overfill.
Lightweight battery, Recaro Sportster Seats, but otherwise full weight, full interior.
Metal undertray with oil cooler duct in place.

I only started logging since Sept 2024 and I have only done time trial type of events since then where I would only do short sessions, usually not longer than 10-12mins. Normally that's just an out lap, 2 hot laps, maybe 3 if I really needed, then cool down.

Peak oil temp logged so far is 277F in 95F heat.
Coolant temps got up in the 230s.
DCT 240F

I know if I keep going Oil Temps will cross 280s but I just haven't since AiM logging. Previously before logging, I know i got closer to 300F on the oil gauge and I've hit the yellow coolant temp warning, and dct warning before when I used to do longer sessions.
All data from stock can-bus data/sensors.

Last edited by tdott; 06-09-2025 at 12:41 PM..
Appreciate 1
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