hockeyguy

One week into new ownership. Love my 991 C2S cab! I traded in my 997.2 C2S. Both cars with pdk.
I've noticed that my 991 engine, on regular driving (RPM below 4000 during break-in), usually gets to between 200-215 degrees. My 997.2 C2S would typically get to only 175-190 degrees in regular driving, unless I pushed it.
Is this typical? I'm thinking that the new intake on the 991 makes this engine run hotter...

chuckbdc

I believe the car is set up to run a bit hotter in "normal" mode to warm up faster for emissions and mpg purposes. If you put it in "sport" and keep driving, it will run cooler (eg it circulates fluids through the intercooler more- or something). Or maybe its getting ready for sportier driving?

TTCarrera

The 991 has an intercooler?

pfan

I've also noticed the oil temp runs 20-30 deg. cooler in sport mode. Not sure how it's accomplished, but curious as to why it's not the default mode (cooler oil). Perhaps the higher oil temps (~225) are optimum, and more cooling is provided in sport mode in anticipation of higher rpm's.

Additionally, I've noticed that the electrical voltage will increase from ~13.5 to ~14.4 when sport mode is selected. Not sure if this is due to increased gen output or perhaps some type of load shedding.