It serves no function whatsoever (other than to make the owner look like a twit) on 99% of street vehicles you see them on, since they are typically front-wheel-drive vehicles!
On a race car, the spoiler acts like an upside-down 'wing', so that the airflow over the car "pushes down" on the rear (drive)wheels to increase friction between tire & road surface and thus improve traction.
2006-12-20 12:42:27
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answer #1
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answered by Anonymous
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Roof Spoiler Purpose
2017-01-12 19:07:16
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answer #2
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answered by ? 4
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When the car is being driven, air passes over it - the function of a rear spoiler is to provide resistance against the air so that it will push down on the back of the car, therefore increasing grip. This is especially useful on rear-wheel drive cars.
2006-12-21 02:55:58
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answer #3
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answered by Anonymous
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Due to the shape of the car, itself acts as a normal wing, tending to lift from the ground at higher speeds (don't worry, it will never take off, but the effect is there).
The rear spoiler is supposed to counteract this effect, and keep the car down on the road even at higher speeds.
As most answerers already said, this effect is probably only significative in race cars.
More info at:
http://en.wikipedia.org/wiki/Spoiler_%28automotive%29
2006-12-20 13:10:09
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answer #4
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answered by Eng_helper 2
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The function is to keep the rear wheels as close to the ground as possible. It runs off of the principle of the wing. This wing is just turned upside down so that the lift is actually pushing the car down. Most of the time on cars that are driven on the road it is just for show. For race cars it actually serves this purpose.
2006-12-20 12:40:24
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answer #5
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answered by answerman abc123 2
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simply due to its shape it increases downforce and helps you prevent or control overstearing.ewspecially usefull for cars that move when the transimision of the powert akes place on the rear wheels. its effect can be noticed in staight lines but more during tight corners. it pushes the car downwards increaseing traction handling performance and grip. but it kills the rubber compounds in the tires, it takes away your final speed increases cosumption etc.
2006-12-20 17:18:06
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answer #6
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answered by Emmanuel P 3
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Next time you are in a car riding down the road, stick your hand out the window, with your fingers pointed away from you and laid out flat and tight against each other. then twist your hands front side down. You will notice your hand wants to go down towards the road. Well a spoiler is attached to the back of a car, It should push the rear of the car down at high speeds to help maintain traction. Now as for the function of them on the little tuner cars, they aren't mounted properly to be of much help, and would break off at high speeds, so there's my Idea.
2006-12-20 12:49:15
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answer #7
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answered by quick_ridez 4
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On a street-legal car, it's to make it more appealing to the buyer and sell the car. On a racing car, it's to put additional weight on the tires to keep the car stable and "down on the pavement.
2006-12-20 12:48:37
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answer #8
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answered by DelK 7
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it helps with downforce, better traction in the rear at higher speeds. an no you dont have to do 150+ i have felt results at speeds around 80. most are for looks however and serve no purpose but to be appealing to some.
2006-12-20 16:35:28
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answer #9
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answered by Anonymous
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Just for looks, unless you are doing about 150+ mph.
2006-12-20 12:42:49
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answer #10
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answered by Say What? 5
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