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Old 07-14-2010, 12:36 PM   #1
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Default Look at this hood design

So Chaser posted over on the other forum the NA extraction hoods they finally received. But part of the pictures and description got me thinking:

Quote:
The hood is also "Flared" which means the back edge is raised and vented to extract more heat.



My understanding has always been that an opening designed like that would be induction rather than extraction. I'd like to know if that's incorrect. If I am correct though, what will this hood do to the airflow through the engine bay considering the extraction vents?
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Old 07-14-2010, 12:42 PM   #2
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My favorite products are the one where the designers proudly display their lack of understanding in the product description. That hood will increase engine bay pressure by opening up a high-pressure vent at the back, and the vent at the front will become less effective as a result.
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Old 07-14-2010, 12:48 PM   #3
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I'm with Savington. It is just a fiberglass/CF layover showcar piece. Not to mention if you followed their Hardtop groupbuy on CR.net.... quality and such is crap.

They are a knockoff crappy import bodykit company. Not much more.
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Old 07-14-2010, 12:49 PM   #4
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Quote:
Originally Posted by Savington View Post
My favorite products are the one where the designers proudly display their lack of understanding in the product description. That hood will increase engine bay pressure by opening up a high-pressure vent at the back, and the vent at the front will become less effective as a result.
That's what I was thinking, with that vent at the rear it kinda cancels the extractors out. I can see air getting pulled out thru the extractors and then going right back in thru the vent at the rear.
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Old 07-14-2010, 01:01 PM   #5
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Agree with all of the above. If anything, those vents in the back should be covered. Im sure itll cool the engine bay off a bit with those vents in the back closed.
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Old 07-14-2010, 01:10 PM   #6
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It will work really well at idle.
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Old 07-14-2010, 01:18 PM   #7
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lol
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Old 07-14-2010, 01:24 PM   #8
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Chaser Aero: "The name sounds cool, but we really don't know anything about it."
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Old 07-14-2010, 01:30 PM   #9
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Looks like they got the corner ducts from autozone
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Old 07-14-2010, 01:35 PM   #10
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If you need an extractor hood there's only three options I would consider.

A. Buy a hood from rharris.
B. Find a used FM hood.
C. Put and extractor scoop in your stock hood. Use either a Mini Cooper hood scoop flipped around, or use the Carbon Trix scoop.
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Old 07-14-2010, 01:44 PM   #11
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Quote:
Originally Posted by levnubhin View Post
If you need an extractor hood there's only three options I would consider.

A. Buy a hood from rharris.
B. Find a used FM hood.
C. Put and extractor scoop in your stock hood. Use either a Mini Cooper hood scoop flipped around, or use the Carbon Trix scoop.
You forgot D.
Hack the oem hood up
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Old 07-14-2010, 01:45 PM   #12
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What's the consensus on the Autoconexion vented hood? Mine has been sitting here since early '08, and I still haven't used.

C
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Old 07-14-2010, 01:51 PM   #13
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Quote:
Originally Posted by Splitime View Post
You forgot D.
Hack the oem hood up
haha yeah, but that kinda falls inline with C.
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Old 07-14-2010, 01:54 PM   #14
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Quote:
Originally Posted by chriscar View Post
What's the consensus on the Autoconexion vented hood? Mine has been sitting here since early '08, and I still haven't used.

C
I had both versions and they worked awesome. Phil got to see them
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Old 07-14-2010, 02:03 PM   #15
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Otoh- box in that vented cowl area (isolated from the engine bay) and you've got a cold air intake source.
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Old 07-14-2010, 06:48 PM   #16
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I think it's ugly... ?
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Old 07-14-2010, 06:49 PM   #17
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If your next post is an ad, get ready to wave goodbye.

C
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