Reply to "911 cooling mods"

The fan sits with the one fin almost vertical and the other one off to the left, directing air to number 4, which runs hottest on 911 fan conversions. 1 and 2 usually run way cooler, like 50 to 60 degrees, then 3, then 4 hottest.

Then I built some cylinder tins, like sled tins on a beetle, but reversed to push the air rearward since I have a mid-engine. My problem was rising cylinder head temps at idle or in stop and go traffic. Underway, above 30 mph was never a problem. My thinking was the hot air blasting downward was bouncing off the ground and getting pulled back into the fan intake. But with higher speeds the hot air would get sucked back and away.