Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Any benefit to making magnetically attached hood & roof covers with Dimples?

Josh8loop · 02-12-2013, 11:37 PM

Fellas,

Lately traffic patterns, my driving style and a few expensive maintenance needs that I cannot afford right now are affecting my MPG's. I am moving towards doing some aero mods since they will gain quite a bit from what I understand and don't have to be high cost to be effective. So far I have started blocking the upper radiator opening and started filling in gaps between body panels to reduce turbulence. This is just a start but I want to look forward and get my mind going and try to come up with some ideas.

I am contemplating creating two magnetically affixed shells. One will go over the top of the existing hood, and one that will go over the roof. I am expecting the shell will raise the existing hood & roof protrusion by about 2 inches. After watching MythBusters show on the clay covered dimpled car it seems like it might be good to use dimples on the shells. I've not settled on a material choice that will be light, easily worked with at home tools, and one that will be rigid enough for the task. Harbor freight has some 93lb pull force cup magnets that would be perfect for non-permanent attachment. Am I crazy here or what?

02-12-2013, 11:37 PM	#1 (permalink)
Josh8loop Definately a Modder! Join Date: Aug 2011 Location: Port St. Lucie, Florida Posts: 94 Thanks: 5 Thanked 5 Times in 4 Posts	Any benefit to making magnetically attached hood & roof covers with Dimples? Fellas, Lately traffic patterns, my driving style and a few expensive maintenance needs that I cannot afford right now are affecting my MPG's. I am moving towards doing some aero mods since they will gain quite a bit from what I understand and don't have to be high cost to be effective. So far I have started blocking the upper radiator opening and started filling in gaps between body panels to reduce turbulence. This is just a start but I want to look forward and get my mind going and try to come up with some ideas. I am contemplating creating two magnetically affixed shells. One will go over the top of the existing hood, and one that will go over the roof. I am expecting the shell will raise the existing hood & roof protrusion by about 2 inches. After watching MythBusters show on the clay covered dimpled car it seems like it might be good to use dimples on the shells. I've not settled on a material choice that will be light, easily worked with at home tools, and one that will be rigid enough for the task. Harbor freight has some 93lb pull force cup magnets that would be perfect for non-permanent attachment. Am I crazy here or what? __________________ 2002 VW Jetta TDI 5-speed(completed 01M-5-speed swap at 155K miles) 45 MPG City with the 01M, 5-speed 60+ MPG City. Nokian Entyre Low RR Tires. Experimenting with the "Hybrid" 205 Deg F T-stat: http://forums.tdiclub.com/showthread...=306799&page=4 ..