Guys,
Let's think a minute here. The engine compartment is "filled" with air
containing heat. You are pulling that(and fresh air) straight thru the
fan and distributing it around the inside of the shroud at a pretty high
rate.
The sheet metal is going to be mostly the temperature of the air being
pulled in by the fan and blown thru the shroud at high speed(lots of cfm).
I would bet that the temp of the shoud itself would closely match the
ambient engine compartment air temperature.
I don't see that the coating on the shroud would help at all.
Now, a coating on the inside of the cylinder head/cylinder sheet metal
might do some good.
Just my 2 cents, dave
On Sat, 18 Apr 2015, Kyle Davis wrote:
What I was thinking, and I guess it is wrong, would be that porcelain coating
the fan shroud would keep heat out of the cooling
system, not vice versa.
Kyle
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