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03-13-2006, 09:39 PM
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#16
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Regular User
Join Date: Aug 2004
Location: Solihull, UK
Posts: 2,766
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Ok as promised here is a pic of the airbox with the lid on and off, you can see how much more air can get sucked in with the lid off!
A couple of vids, one with the roof up (windows open) and one with the roof down
Click here to watch roof-up
Click here to watch roof-down
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Current: 2008 BMW 118d SE, 2002 Honda S2000, 2007 Honda CBR600RR
Previous: 2003 Z4 3.0i SMG, 1995 Aprilia RS250
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03-13-2006, 10:11 PM
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#17
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Regular User
Join Date: Aug 2003
Location: The shadows
Posts: 2,397
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Come one man, I need some before and after footage. Not really being all that familiar with the way an S2000 sounds during acceleration has me clueless to how it sounds with the lid on.
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Ed - Trekkie women are HOT! (A Trekkie for life)
Manic-Depressive and my head hurts.
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03-13-2006, 10:24 PM
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#18
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Regular User
Join Date: Aug 2004
Location: Solihull, UK
Posts: 2,766
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It just so happens I have a vid I shot last summer, you'll see in the following that you don't hear much beyond second gear with the lid on...but this is more due to wind noise than anything. Compare this with the 'roof down' vid in the post above...
Click here to watch withairboxlidfitted
I'll try and get some drive by vids at the weekend 
__________________
Current: 2008 BMW 118d SE, 2002 Honda S2000, 2007 Honda CBR600RR
Previous: 2003 Z4 3.0i SMG, 1995 Aprilia RS250
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03-13-2006, 10:42 PM
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#19
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Regular User
Join Date: Aug 2003
Location: The shadows
Posts: 2,397
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There we go, now I can see the difference. Definitely has more grunt to the sound with the lid off.
__________________
Ed - Trekkie women are HOT! (A Trekkie for life)
Manic-Depressive and my head hurts.
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03-13-2006, 11:49 PM
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#20
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Regular User
Join Date: Feb 2004
Location: Oakland, CA
Posts: 3,446
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Originally Posted by RC45
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Originally Posted by ae86_16v
It might actually suck in more hot air without the lid.
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Not a chance of that.. the intake of any modern car has a severly restricted inlet opening... removing the lid is a free 5hp trick to increase the size of the intake inlet opening on a C5 Corvette.. (just be sure to ziptie the air filter in place in our cas4e - it must surely help out the 4 banger as well.
...any way, the air is being taken in from the same general area, just more of it (same temp as originally - right  ?) so he should be breathing easier... and "hot air" is pretty much all you get in a Texas summer |
Haha, good point.
But still you have a snorkel that helps route the air from outside, with the lid removed you'll be getting in more air from the engine bay, which is hot air.
Definitely the you might experience a gain in HP because of the increase air even if it is hot air.
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03-14-2006, 12:36 AM
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#21
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Regular User
Join Date: Jun 2003
Location: Texas
Posts: 15,413
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Originally Posted by TransAm
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That sounds pretty aggressive... nice.
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