Quote:
Originally Posted by oldschooleco
i extended the rocker panels down at the pinch welds, or is that to far in? but that sounds good i have about a week to get it together before the 2000 mile trip
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Going back to the 1982 Trans Am Firebird wind tunnel work at Lockheed Marietta,GM's guys got the rockers flush with the outside of the wheels,and down to where a belly pan would be.The air would have a straight path to the rear,losing no momentum by not crashing into the wheels/tires.
Carried behind the rear tires,the extensions,wrapping around into a rear valance panel preserve the momentum all the way to the rear.Subaru published a drag reduction for their 1986 XT by creating this 'parachute.'