03-06-2012, 04:07 PM
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#1 (permalink)
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EcoModding Lurker
Join Date: Feb 2012
Location: gravesend, uk
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wallace - '98 landrover 300tdi defender 110 hard top 90 day: 24.56 mpg (US)
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Bug deflectors?
you know, those little plastic bonnet mounted windshields that divert the air, so the bugs go over the roof not on the screen, do they help any in day to day aero stuff?
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03-06-2012, 05:10 PM
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#2 (permalink)
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(:
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No.
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03-07-2012, 05:51 PM
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#3 (permalink)
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Master EcoModder
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full separation
Quote:
Originally Posted by yostumpy
you know, those little plastic bonnet mounted windshields that divert the air, so the bugs go over the roof not on the screen, do they help any in day to day aero stuff?
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I have an old VHS of Texas Tech University's 'Project Headwind' in which they video-graphed smoke flow over a model F-250 Dualie pickup with various aero mods.
An upright bug-deflector caused complete flow separation over the entire bonnet,windscreen,and header.
Textbook terrible!  |
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03-07-2012, 06:11 PM
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#4 (permalink)
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Master EcoModder
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Quote:
Originally Posted by aerohead
An upright bug-deflector caused complete flow separation over the entire bonnet,windscreen,and header.
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Yet they sold a ton of them, and still do in some parts. |
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03-08-2012, 12:06 PM
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#5 (permalink)
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Got MPG?
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The ones they have today on cars lay more flat and contoured to the hood...of course the bug deflection factor minimal and it is also integrated into a hood edge protector from debris and such.
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01-22-2013, 10:39 PM
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#6 (permalink)
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EcoModding Apprentice
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The old flat ones make a good lower grill block on a 2008 smart with a little trimming. Chumly
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01-22-2013, 10:48 PM
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#7 (permalink)
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Corporate imperialist
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Quote:
Originally Posted by chumly
The old flat ones make a good lower grill block on a 2008 smart with a little trimming. Chumly
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Ah so they can improve fuel economy, if used properly.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
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