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landsailor · 04-13-2012, 09:41 AM

My '72 Corvette ( may I get it back some day ) had a vacuum pressure operated shaft that opened an active shutter system at the back of the passenger space that vented to the low pressure to of the rear of the very back of the compartment. Worked good. Could keep the windows up and have the dash control on fresh air and low fan. I think I remember Basjoos had installed 2 cabin air exit openings at the rear of his boat tail with results.

04-13-2012, 09:41 AM	#15 (permalink)
landsailor EcoModding Lurker Join Date: Mar 2009 Location: Hot, Windy and Freezing Southern Plains Posts: 23 "Is that one of dem Storm Tracker trucks" - '99 Mazda B-2500 2wd extended cab 6' bed Thanks: 197 Thanked 9 Times in 5 Posts	Increased air flow... My '72 Corvette ( may I get it back some day ) had a vacuum pressure operated shaft that opened an active shutter system at the back of the passenger space that vented to the low pressure to of the rear of the very back of the compartment. Worked good. Could keep the windows up and have the dash control on fresh air and low fan. I think I remember Basjoos had installed 2 cabin air exit openings at the rear of his boat tail with results.