Thread: Vents
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Old 06-05-2019, 10:39 AM   #42 (permalink)
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hood vents

Originally Posted by Vman455 View Post
I'll be curious to see what results you get; to my knowledge, no one on this forum has tried hood vents yet. I probably won't get around to them until later this summer if I do them at all.
I did them for the last wind tunnel trip.After losing an igniter,I thought some additional engine bay ventilation might help,after 'looking around' in there with a pyrometer.
Money ran out,so I don't have an A-B-A result,just for the two hood extractors.Blocking the cooling system inlet and extractors off did register a Cd 0.027 difference.It wasn't feasible to alter the underside of the truck for testing,so it remains an unknown quantity.
I used the 1976 Pininfarina/Morelli, CNR 'banana' car as an inspiration for the extractors.
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