Quote:
Originally Posted by PaleMelanesian
Can you confirm that airflow is reattaches at the end of the oem trunk lid? I've always assumed it does but never checked.
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Funny you should ask! Here it is. See the attached pic. I got treated to another SoCal morning misting. Here my newly applied tufts on the trunk lid were set in the misty surface at a max brief peak speed of 48mph. With 96 tufts, it looks like a recirculation bubble at its largest around 4 tufts and decreasing in size and effect out one tuft further in each direction. Does that translate to approx 4-12% drag area near the lid/window interface along the car's spine? It reattaches before the end of the OEM lid. That seems small to me, but it is what the raised lid is meant to eliminate or reduce. Next I'll tuft the current raised lid for comparison, then build a vertical piece to run down the pine, with tufts on it, to measure how the air is behaving above the car's immediate surface.
