1980 280SE Radiator

[thorsen]

I just got back from a 50 mile drive, 40 of those on the toll way at 60-75mph. I pulled into my driveway and shot the "hot" and "cold" side of the radiator with my thermometer. The water going in was 190 and the water coming out was 120 at 70 degrees ambient.

I think this radiator is going to work just fine.

[thorsen]

Final thoughts - I have driven the car on a 400+ mile road trip and in 2 hours of stop-and-go traffic in 90+ degree weather and the radiator shows no signs of running hot.

Since the radiator did not have a transmission cooler I mounted two air-to-fluid coolers behind the lower grille. Since I was sitting in stop-and-go traffic I was concerned about the lack of airflow so I mounted a 4" blower behind the bumper wired to an in-cabin switch. I have touched the cooler after a long sit in traffic with the blower on and the 'out' side was much cooler than the 'in' side.

[todds]

So how many total fans is that? :-)

What size is your a/c pusher fan?

[thorsen]

Originally Posted by todds

So how many total fans is that? :-)

What size is your a/c pusher fan?

A lot. All the lights dim and the alt belt starts shrieking when I turn on all the fans. Just joking.

I forget the exact specs on the AC fan but I think it is 16" and about 2300CFM.

[thorsen]

AC fan is 14", 2100 CFM. The transmisssion cooler is 3", 145 CFM and 3 amps.