Quote:
Originally Posted by Bicycle Bob
The mystery to me is why there is so seldom any decent ductwork to the rad, let alone a variable intake. The famous Rolls Royce grille is a non-working copy of their original scheme, which had a thermostat that restricted air instead of water.
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This sort of system didn't deal with rapid load variations well and had troubles keeping things cool enough on steep hills. It would also have troubles in modern city stop and go traffic today.