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| Ground f/x https://slantsix.org/forum/viewtopic.php?t=22485 |
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| Author: | slantfin [ Thu Mar 29, 2007 4:09 pm ] |
| Post subject: | Ground f/x |
Has anyone improvised ground effects (front spoiler) for an A body? I have a 67 barracuda. I just read a thread on spoilers, mostly about how wings aren't so effective at normal speeds. I think front air dams work at lower speeds. |
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| Author: | SlantSixDan [ Thu Mar 29, 2007 6:12 pm ] |
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Yes, airdams work at lower speeds than rear wings, but on a car such as an A-body, neither is going to be of significant functional use at speeds you're likely to encounter in actual use...which begs the question of how much money and effort you want to put into eye candy! 
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| Author: | emsvitil [ Thu Mar 29, 2007 6:14 pm ] |
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An air dam can help with cooling.... More air can be funnelled thru the radiator, and then there's slightly lower air pressure behind the air dam (and thus the radiator) and that helps to....... |
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| Author: | SlantSixDan [ Thu Mar 29, 2007 6:22 pm ] |
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Quote: An air dam can help with cooling....
True, but:More air can be funnelled thru the radiator, and then there's slightly lower air pressure behind the air dam (and thus the radiator) and that helps 1) This can be achieved with a simple baffle bolted to the bottom of the rad support panel 2) This isn't necessary on A-bodies 'cause they have ample air-grabbing area up front, and many of them have additional air-grabbing area below the bumper |
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| Author: | slantfin [ Fri Mar 30, 2007 7:11 am ] |
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According to Mike Martin's book, Mopar Suspensions, air dams start to "generate usable down forces at 35 mph". I almost never go over 75 mph, so a rear spoiler would definitely be an ornament. I wonder if the baffle described by Slantsix Dan would have any useful effects. I'd rather present the grocery-getter appearance rather than a pull-me-over appearance. 
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| Author: | SlantSixDan [ Fri Mar 30, 2007 7:57 am ] |
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Quote: According to Mike Martin's book, Mopar Suspensions, air dams start to "generate usable down forces at 35 mph".
The statement doesn't make realistic sense. It may be theoretically true, but it's practically meaningless, for if your car needs any downforce at 35 (or 45, or 65) miles per hour, then you have much, much bigger concerns than presence or absence of a front airdam! There are many hours and dollars that can be spent more cost-effectively on improving an A-body's handling before you get to the airdam question. |
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| Author: | slantfin [ Fri Mar 30, 2007 9:07 am ] |
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OK you got me there, Slant six Dan. More dollars and hours than I probably have. Realistic sense would have me get new tires, first off! I might try the baffle idea anyway, just for the sake of driveway science. I have something on hand that might work. But good reality check! |
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| Author: | slantvaliant [ Fri Mar 30, 2007 12:28 pm ] |
| Post subject: | |
Front end aero aids ... from the sort-of-subtle  (140+ MPH '63 Falcon 'Vert) through the bold  to the downright cow-catcherish.  (190+ MPH '62 Polara) These aren't needed around town, or even really on the highway. But, considering where some of us DO spend our dollars and hours (megawatt audio systems, fancy upholstery, pretty valve covers, et cetera), a small mostly cosmetic chin piece isn't necessarily out of line. If it actually helped cooling, or held the front end down even a little at 75MPH, so much the better. Like Dan said, that could take some work to design, constuct, and prove. Most of us should put the resources elsewhere. Whatever you do, try to make it fit the theme of the car and not become the focal point. |
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