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Old 08-02-2019, 12:07 PM   #43 (permalink)
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Join Date: Feb 2012
Location: Champaign, IL
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Little Red - retired - '05 Honda Civic EX
90 day: 49.03 mpg (US)

Pope Pious the Prius - '13 Toyota Prius Two
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Originally Posted by mpg_numbers_guy View Post
Where are your wheel covers?
I removed them last spring in the first stages of the weight-reduction kick; all told, the pans were ~10 lbs. I might do something lightweight in the future.

Originally Posted by Gasoline Fumes View Post
The 2nd gen Prius had boat tails behind the rear tires.

Yep, and the 3rd gen continued that with a slightly modified design:

The Insight doesn't have the raised diffuser like the Prius, so it's just a flat surface without the inside shaping like the Prius:

But I think the splitter should function the same, adding surface area for the airflow behind the tire to attach to. I inset it like on the Insight rather than making it flush with the outside of the bumper cover since there's probably a reason the engineers did that despite having all that real estate available.

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