Al Pettee

Somebody asked me how the air-cooled 911 Turbo's manage cooling with the engine fan and IC setup. Does anyone know how much of the ambient airflow over the rear of the car over the IC gets pulled in to the engine bay from the fan versus how much flows over the IC for convection upwards to facilitate cooling of the charge air?

No HTwo O

Interesting question.

No HTwo O

Did you see this post earlier this week?:

"......massive engine cooling fan......factory spec.....1,210 litres per second sec at 6,100 RPM"

https://rennlist.com/forums/993-foru...o-testing.html

Al Pettee

Thanks, this shows that the massive engine fan helps suck most air in through the IC, but...interestingly, NOT all.