Hood scoop vs extraction vent? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-27-2011, 03:56 AM   #21
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Join Date: Apr 2010
Location: Newcastle, Australia
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Thanks spoolin, good info. Surely the efficiency of the whole hood lifted as opposed to the middle foot or whatever isnt great? I mean half that section, according to your tests, is sucking and half is blowing?

Ive done the tests with different cars, but your right, never with my NA.

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Old 05-27-2011, 09:47 AM   #22
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Originally Posted by Blindsay View Post
thank you that was exactly what I was looking for.

now is there a downside as to where you can put a vent or a place that will reduce that pressure more significantly than other places?

(and yes, to the poster who asked about minihood scoops, i did imply using those as an extraction vent, not as a functional hood scoop)
Like others are saying, where it is on the pic of the silver car above is sufficient. This topic can be talked to death (and has been on many forums) so if you have a specific setup in mind (i.e. stock bumper cover, ducted radiator, non ducted extraction vent behind radiator) those questions could be answered relatively painlessly.
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