Quote:
Originally Posted by TheCarpenter
I would put the run cool hood louvers on there for sure to help get as much flow through the engine compartment as possible.
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FYI - Hood louvers on E-Series van only allow heat to evacuate at rest. They do nothing while moving since air pressures above and below the hood, as tested, are very nearly equal. A hood scoop might be different.
Still, allowing more heat to escape at rest is probably a good thing if the engine is not running. If the engine is idling, then, my guess, with louvers there will be somewhat less air flow across and down the engine compartment since part of that airflow, will exit through the louvers.
Ymmv