>>wat100+(OP)
I dont have firm numbers for you since it would depend on environmental conditions. As an educated guess though, I would say a fucking shit ton. You wouldn't want to be anywhere near the damn thing.
>>fsh+hb
A car's "radiator" doesn't actually lose heat by radiation though. It conducts heat to the air rushing through it. That's absolutely nothing like a radiator in a vacuum.
>>alexti+Qe
The question was about comparing the 1400KW of radiative cooling to how much convective coolig you could get from the same radiator on Earth.