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Originally Posted by Jimbo Mahoney
OK, so why don't people use car radiators? They are just as cheap, if not more so. The only disadvantage I can see is their size and perhaps the 'labour' involved in changing the 1" hose feed to 1/2" barbs. Surely, given their size, they aren't very restrictive either?
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Same problems as heatercores.
Designed for high airflow, highspeed fan, and massive temperature differential. The water coolant in your car is how hot? And the water in your WC loop is how hot? How much air does the car's radiator fan pull in? It's a beast, thats for sure.
Again, different designs because of different applications.
We need a low air resistance (to go with our crappy fans) radiator designed for a low temperature differential and low airflow system.