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Old 07-28-2001, 10:26 PM
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Andy Dunn Andy Dunn is offline
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Default short windscreen vs windshield (how much HP gained)

I have been wondering how much benefit there is for a cobra running a windscreen vs one running a windshield at the track. I stumbled onto a neat java BHP absorbed co-efficent of drag calculator.

http://www.ihonk.com/h/speedcalculators/racing.html

Any guesses to the Cd of a cobra? They list several cars here for comparisson. my guess would be .42?

http://www.ihonk.com/h/speedcalculators/drag.html

Now how about frontal sq foot area of a cobra? How does 12 sound?

From that, it looks like on a fast track with a straight away speed of 150mph, the drag sucks almost 116 HP. Any guesses to the size of the windshield? How about 6 sq feet? Would it be logical then to say that a windshield robs about 60HP at 150mph?


your thoughts?


Andy
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