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Old 03-16-2016, 08:26 AM   #1
Mike51Merc
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Default Re: Yet an even higher flow thermostat?

Why do you want more flow? From what I've learned about cooling systems you want restriction in the flow.
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Old 03-16-2016, 10:36 AM   #2
G.M.
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Default Re: Yet an even higher flow thermostat?

Quote:
Originally Posted by Mike51Merc View Post
Why do you want more flow? From what I've learned about cooling systems you want restriction in the flow.
Mike, There are three things that cool the engine. The size and amount
of coolant in the system. The amount of coolant flowing through the
system. And the amount of air flowing through the fins of the radiator.
If any one of these is improved a little better cooling is noticed. If all
all are improved then the engines will run cool. I have performed cooling
tests on flatheads for many years in SW Florida in temperatures above
90 degrees. I have a 39 P/U that was run at a National Ford meet in
Maryland in about 2004 for over 2 hours at a fast idle with the outside
temperature over 100 degrees and never got over 180. When raced
slightly the temperature dropped a few degrees. This truck was fitted
with Skips pumps, 6 blade industrial fan, standard radiator, 4 lb
pressure cap and a shroud. Temperatures were taken every 10 minutes
on the water outlets of the heads and recorded. Don't believe water
has to stay in the radiator to cool it, that will just make it hotter. G.M.
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