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Old 11-15-2011, 04:24 PM   #3 (permalink)
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What's the control system like? The simplest one would probably be a valve that is open the whole time the car is on. That way you get warmed-up coolant right away, and the coolant is always circulating (and presumably getting re-warmed after a little time) until you shut the car off. Might be interesting with longer periods of engine-off coasting.

The concerns about thermal stress cracking the block are probably worth worrying about, especially if you just have the valve open or closed. Let's see. Perhaps a small valve opening at first, followed up within minutes by full opening? Or perhaps seconds?

Sorry, random thoughts bouncing around here on the subject.

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