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Old 11-23-2008, 03:22 AM   #46 (permalink)
trebuchet03
MechE
 
Join Date: Dec 2007
Location: Bay Area
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The Miata - '01 Mazda MX-5 Miata
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Quote:
Originally Posted by Christ View Post
If you were to use a simple pressure analysis tool to check the vacuum at the tail of a vehicle in real time (read: water in a tube.), one could effectively determine the effect of adding pressure to that area.
And there's the rub.....

"Low Pressure"

It's not intuitive... but the pressure back there isn't exactly "low" relative to atmospheric... you should totally measure it for yourself... Vacuum gauges are cheap (or do the tube and water thing)

It is "low" relative to the front of the car, however
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