Chris Wilson Posted July 24, 2008 Share Posted July 24, 2008 How badly does a slight radius on the edges of a NACA duct compromise its efficiency please? I am putting two extra ducts in the front splitter floor of my Zeus, to add some more front downforce. The existing two have about a 2 mm rad on the external edges. I believe they are much better with sharp edges? Thanks. I put this question here as people seem to have NACA ducts on some aftermarket bonnets, so some tech info may well be of interest to others. Quote Link to comment Share on other sites More sharing options...
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