TampaBear67
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Mteam engineering the 2015 Ford Mustang spent quite a bit of time in the wind tunnel, not only to improve fuel economy, but also to reduce wind noise and buffeting, especially in the convertible.
Most of what they’re doing is established best-practices stuff, like moving the side-view mirrors off the “flag” area (the triangle at the base of the A-pillar), to stand off the door skin. This keeps the mirror’s wake from causing turbulence and noise at the windows. The mirror is also as small as possible to reduce drag. There are little spoilers ahead of the rear tires to reduce drag on all models, and the standard deck-lid sheetmetal incorporates a wind-cheating spoiler. EcoBoost models get an additional spoiler. Performance package models include a splitter that runs around the front and along the sides of the car. It works with a more aggressive rear spoiler to reduce lift in a balanced fashion front and rear. Overall drag is claimed to be reduced by 3 percent, which is said to be good for a 1 percent improvement in highway fuel economy.
This “air-curtain” concept funnels air from the fascia into a tall narrow slit just ahead of the front tires. This high-pressure air helps keep the flow around the car attached to the side of the car instead of slowing and becoming turbulent. BMW has been using this technique for some time. This feature is standard on all Mustangs.
Mustangs equipped with the EcoBoost four-cylinder engine will get grille shutters for the upper and lower air inlets. These shutters monitor the car’s various cooling modules and close whenever full airflow is not required, routing more air around the car instead of through the engine. V-8 models don’t get the shutters, but they do get air extractors on the hood, which keep drag-inducing pressure from building up under the hood, and help keep airflow attached to the hood.
http://m.motortrend.com/wot/1402_2015_ford_mustang_goes_all_in_on_aero_engineering.html??eml=738621&sp_rid=4491513
Most of what they’re doing is established best-practices stuff, like moving the side-view mirrors off the “flag” area (the triangle at the base of the A-pillar), to stand off the door skin. This keeps the mirror’s wake from causing turbulence and noise at the windows. The mirror is also as small as possible to reduce drag. There are little spoilers ahead of the rear tires to reduce drag on all models, and the standard deck-lid sheetmetal incorporates a wind-cheating spoiler. EcoBoost models get an additional spoiler. Performance package models include a splitter that runs around the front and along the sides of the car. It works with a more aggressive rear spoiler to reduce lift in a balanced fashion front and rear. Overall drag is claimed to be reduced by 3 percent, which is said to be good for a 1 percent improvement in highway fuel economy.
This “air-curtain” concept funnels air from the fascia into a tall narrow slit just ahead of the front tires. This high-pressure air helps keep the flow around the car attached to the side of the car instead of slowing and becoming turbulent. BMW has been using this technique for some time. This feature is standard on all Mustangs.
Mustangs equipped with the EcoBoost four-cylinder engine will get grille shutters for the upper and lower air inlets. These shutters monitor the car’s various cooling modules and close whenever full airflow is not required, routing more air around the car instead of through the engine. V-8 models don’t get the shutters, but they do get air extractors on the hood, which keep drag-inducing pressure from building up under the hood, and help keep airflow attached to the hood.
http://m.motortrend.com/wot/1402_2015_ford_mustang_goes_all_in_on_aero_engineering.html??eml=738621&sp_rid=4491513
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