Quote:
Originally Posted by bobcowan
This is an issue. If it runs hot at idle and not while moving, that tells you there's not enough air flow to keep the fluid cool.
A shroud allows the fan to draw air through the entire core. Without a shroud, the air is only pulled through directly beneath fan. So probably only about 60% of the core is being used.
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I solved this problem with dual (puller) electrical fans from W.D. Kydd plus a good shroud and a manual control of these electrical fans which provides an airflow of about 37 mph during stop. And also a dual core aluminium radiator from Ce Cool (26 inches) and a coolant capacity of about 2.5 gallons. You can also add "water wetter" from "Red Line" but I do not need it.
And one more comment: there is nothing in front of my radiator, not even a "griddle" to reduce airflow.