[Formulajones]

Originally Posted by Steve C.

If the boundary layer on the hood of your car behaves as one on a flat plate, estimate how far from the front edge of the hood the boundary layer becomes turbulent. How thick is the boundary layer at this location?


Might be of interest....

http://justacarguy.blogspot.com/2011...of-factoy.html


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There was a test of this years back and I can't remember where that came from, but this was a big part of the discussion. It was more about factory hood offerings though. I remember the Formula was up there as one of the better ones, since the scoops are so far forward it was less affected by the boundary layer than scoops further back. I seem to remember the further back the forward facing scoops went, the worse they did. I think the Challenger TA was another decent one because it's raised up off the hood a bit. The higher the scoop the better it worked. It also got into the effectiveness of cowl plenums and how the distance from the base of the windshield affected it's usefulness.

I'll have to see if I can find that test.