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Old 06-05-2012, 02:15 AM   #25 (permalink)
Piwoslaw
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Join Date: Oct 2008
Location: Warsaw, Poland
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Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
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Quote:
Originally Posted by tjts1 View Post
But the ideal profile is much longer than your car. You can't just have it end abruptly and still expect any benefit just because you followed that profile half way to its conclusion. With that modification you create a much larger low pressure zone behind your car.
Following the profile to the end of the car will reduce the area of turbulance behind the car, so it's worth something. Not as much as a full boattail, but better than nothing. Extending a 'tail has diminishing returns: the first foot is worth more than each additional foot by itself. Plus in Europe, anything that protrudes beyond the rear bumper will almost definately attract the wrong kind of attention (blue uniforms, etc.).
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e·co·mod·ding: the art of turning vehicles into what they should be

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[Old] Piwoslaw's Peugeot 307sw modding thread
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