In article ,
Willy Eckerslyke wrote:
Dave Plowman (News) wrote:
If you made two engines identical - apart from one having ally block
and head while the other cast iron - which would warm up fastest after
a cold start?

Air or water coooled?
Aluminium is a better conductor of heat, so presumably the coolant used
for the ally block would would warm up quicker. But if they were
air-cooled engines, heat would be lost quicker to the air from the ally
block.

http://www.engineeringtoolbox.com/th...als-d_858.html

Water cooled. My experience of ally engines says they are slower to warm
up. Of course newer ones will have a much lower water content than older
designs and many newer designs use some if not all ally. Hence the
theoretical question.

--
*A conscience is what hurts when all your other parts feel so good *

Dave Plowman London SW
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