Quote:
Originally Posted by Christ
I'm thinking you meant something else here, because this statement is patently incorrect.
The larger surface area of the radiator distributes heat further, causing each unit area of the cooling or active surface of the radiator to be closer to the temperature of the air flowing through it.
Greatest efficiency is achieved at a higher differential, ergo a smaller radiator distributing the same BTU would be "more efficient".
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No it was correct originally there is a reason a radiator to a v8 is bigger than a radiator to a I4. They need more of a cooling factor which means more cooling fluid whether you use water or coolant. So if you put a smaller radiator on the motor than what there should be it will heat up quicker but may overheat. This can be effective on motors where the vehicle comes with both I4 and v6's and bigger as they tend not to put in a smaller radiator for a smaller motor it is easier just to keep the same parts in them.