Quote:
Originally Posted by aerohead
' RACE CAR Engineering & Mechanics', by Paul Van Valkenburgh, published by the author, 1986, offers a superior method for measuring pressure profiles if you'd like to check that out.
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It's a good book - I have had it for more than 25 years. The aerodynamic pressure measuring technique described in the book is to use water manometers. So try measuring one-tenth of an inch of water with a fluid manometer in a moving car. That's about the wake pressure on the Insight at 80 km/h.
The more you write about testing, the more it's obvious that you don't have a good knowledge of it.
Why don't you look at what I have posted here, learn how to do some on-road testing - and then go and do it? That will be the quickest and easiest way for you to find out for yourself that a lot of what you post here is simply wrong.