Quote:
Originally Posted by KRAM36
In the youtube video it says the spoiler on the Porsche creates more drag at the rear of the car.
" the redirected air leads to a lower pressure zone behind the car, which can increase drag"
Having the spoiler up will not improve the mpg.
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I guess we will just have to agree to disagree then. Tailgate up always improves highway gas mileage on a pickup. The Boxster spoiler operates under the same principles. Separated bubble.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Last edited by Topless; 03-11-2015 at 06:50 AM.
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Lil Red
2009 Porsche Cayman 2.9L
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