Very nice work and documentation.
I agree with your position on airflow and the core support / radiator. I hear far too many cooling complaints from people who go for the complex and overlook the simple (and sometimes inexpensive) in this arena. Most older cars have terrible aero - especially through the radiator. For years I have argued controlling airflow through the radiator is paramount for proper cooling. Anyone who doesn't agree needs to take a quick look at the OEM's. Any vehicle built in the last 10 or more years has excellent flow through the radiator with little or no traditional grille opening. It's not magic (unless you refuse to understand), it's called science.
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