NACA ducts are boundary layer ducts. One of the features tha makes them
work, and is hardly evr discussed, is the fact that at the rear the
upper surface is an airfoil shape. That is to accelerate the air to
increase efficiency. People have tried them backwards thinking that if
the work well th epointy end forward as an intake they shoul work well
with the pointy end backwards. I don't believe these are very
successful, but, I could be wrong. The Sunbeam may get one for the
turbo intake next year if speeds are not up to my goal this coming year.
The inlet would fit flush with the hood and feed an air box with the
turbo's air filter inside.
mayf
slaifman@socal.rr.com wrote:
>Michael,
>
>While they may resemble NACA ducts, that is only for appearance. The original
>designer (Doane Spencer?) made them pointing in the wrong direction. Check it
>out on Google, or Wikipedia.
>
>http://en.wikipedia.org/wiki/NACA_duct
>
>Anyway, they do look "bitchin'" [not PC (politically correct)]
>
>Steve
>
>
>
>
>
>---- michael king <michael.s.king@gmail.com> wrote:
>
>
>>While looking under the bonnet (hood) of an aston martin vanquish today i
>>noticed something that could be usefull to tiger owners.. especially those
>>with LAT hoods.
>>Regards
>>
>>Michael King
>>
>>
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