Is anyone out there using a hood scoop? Seen a bigoneinEuroTuner...

[juliemac57 at hotmail.com (Julie Macfarlane)]

There should be a "bowshock" near the lip of the hood. A low pressure zone 
exits just below that layer and turbulance at the surface of the hood. Hood 
scoops, unless really tall will not draw THAT much air in.

If reverced, then it will allow the air that comes in from the front via the 
radiator, to escape into the low pressure above the hood. This will also 
allow oils and dirt, from the engine compartment to flow very close to the 
windshield and cause it to get dirty faster.



Julie Macfarlane
1981 MKI 2L 16v
Amsterdam NY





>From: "L F" <rocco16v@netzero.net>
>To: "Dan Smith" <sad_rocc@yahoo.com>,<scirocco-l@scirocco.org>
>Subject: Re: Is anyone out there using a hood scoop? Seen a big 
>oneinEuroTuner...
>Date: Wed, 21 Jan 2004 16:37:33 -0800
>
>
>   ----- Original Message -----
>   From: Dan Smith
>   To: scirocco-l@scirocco.org
>   Sent: Wednesday, January 21, 2004 2:41 PM
>   Subject: RE: Is anyone out there using a hood scoop? Seen a big one 
>inEuroTuner...
>
>
>   Most people say that hood scoops don't do anything because there is no 
>airflow near the hood, except for the leading lip and near the base of the 
>windshield.
>
>   ** I subscribe to this theory. Sort of.  While there is airflow near the 
>hood, it is of negative pressure and won't work to direct air INTO the 
>engine bay.  It WILL, however, vent any higher pressure air in the bay 
>OUT.**
>   Larry
>
>
>    However, I have heard people using the little louvres that are on the 
>sides of older Saabs as hood vents and they do vent a bit of heat. I'm 
>considering putting them on my car, but I fear cutting into my mk1.
>
>   Dan
>
>
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