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Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,256
Thanks: 24,382
Thanked 7,359 Times in 4,759 Posts
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Cooling System Drag variability (some examples)
* 1938 Adler-Jaray, 100% grille-block, delta 15.789%
* 1963, idealized cooling system, Cd 0.21 vehicle, Walter Korff, Lockheed Aircraft Company, delta- 7.7%
* 1969 Chevrolet Corvette ( daytime ), 100% grille-block, delta- 6.53%
* CAR and DRIVER, 'CRISIS-FIGHTER PINTO,' 1974 Ford Pinto Runabout, 100% grille-block, delta- 4.33%
* 1976 'Lamellar' grille, Ford of Cologne, Germany, delta- 12%
* 1978 Chevrolet Chevette, 100% grille-block, delta- 7.569%
* 1982 Pontiac Firebird Trans Am, 100% grille-block, delta 3.5%
* 1982 Dr. Ludwig Elsbett, Elsbett Konstruktion ( Elko ), Volkswagen Rabbit, with oil-cooled Elko 3-cyl Diesel, radiator deleted ( standard Rabbit heater core used for engine cooling ), delta- approx. 5.8139%
* SAE Paper 860212, FIAT, wind tunnel research model, cooling drag = 0.017
* Ditto: with 100% grille-block, delta 0.003, 1.2%
* 2005 ' Project Red Hat,' HOT ROD Magazine, land speed record, Chevrolet Camaro, Cd 0.201 ( from Cd 0.491 ), 100% sealed front end,[ unspecified contribution from 'grille-block'.
* 2007 Ford / Buckeye, Fusion 999, hydrogen fuel-cell EV, land speed record car, 100% grille-block, delta- 7.3529%
* Gary Eaker, A2 and Aerodyne wind tunnels, comments that, over his career, he's measured cooling system drag at up to 100-counts.
* 2012, Audi A2, Chalmers University, 100% grille-block, delta 9.479%
* 2013 Dodge DART SXT, grille-shutters, delta- 1.72%
* 2017 SPIRIT of EcoModder.com - II, 100% grille-block, delta 7.837%
* 2017 ' generic ' ICE vehicle, Dr. Joseph Katz, 100% grille-block, delta 13.52%
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