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Old 01-09-2010, 04:34 PM   #83 (permalink)
aerohead
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Quote:
Originally Posted by tanjulio View Post
I had a question?
Do you have pics of your Hood Vents?
I wanted to do the same thing with my 1990 Honda Civic hatchback because
a mechanical engineering student mentioned "NACA Ducts" for more downforce but will a vented hood do the same?

NOTE: other websites stated that a "vented hood" would add downforce to the front wheels IF placed before the wheels, BUT is this wise?

A: Will a vented hood add downforce to the front wheels?
AA: How do you "test for downforce" without windtunnel to place the vent in the best location for Both reduction of lift and reduction of draft?

B: and is there an efficiency cost? MPG goes down??

BB: NACA Ducts are useful for what????


thanks.
PLEASE Help..
tanjulio@hotmail.com
tanjulio,I recommend you hunt down a copy of the book,RACE CAR ENGINEERING,by Paul Von Valkenburg.There is a large chapter devoted to race car aerodynamics.I believe that it would be an invaluable resource to you.
It's easy enough getting killed on a race course.You need competent advice.I would be VERY CAREFUL about WHERE you get your advice.
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