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Old 02-17-2009, 02:40 PM   #69 (permalink)
lunarhighway
Master EcoModder
 
Join Date: Feb 2008
Location: belgium
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vectra a - '95 Opel Vectra GLS
90 day: 37.51 mpg (US)
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it's a good idea... i think it's been mentioned before... however it's got several practical problems... tweaking the spring rate is not all that easy.... especially when you have to monitor when it opens and closes... unless you find a volunteer to lay flat on the hood at highway speeds that won't be to easy... well today you have webcams etc but still. the main disatvantage is also that you don't have any controle over it once it's installed... an electronic controlled setup could in theory react to many inputs... speed, temperature, the fan, a button...etc.

than again if you think you can pull off a spring operated example go for it!!!
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