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Old 07-13-2009, 05:03 AM   #1 (permalink)
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Side mirror VGs

I saw this today:



It looks like a normal side mirror, but it has 5 notches on the top. I'm wondering whether those could be vortex generators? The car is a BMW 330 Cd (not that I even look at Beemers, but this caught my ecomodder-trained eye). The other mirror also had them. I don't know what year this model is, or whether the mirrors are OEM or aftermarket.

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Old 07-13-2009, 08:38 AM   #2 (permalink)
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Hi,

Here's what I did:
http://ecomodder.com/forum/showthrea...html#post62079



It seemed to help some to quiet things down.
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Old 07-13-2009, 12:14 PM   #3 (permalink)
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Piwoslaw -

Yeah, they also have them OEM on Honda Ridgelines. I read that they were mainly for noise reduction, which some have argued is evidence of better aerodynamics.

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Old 07-14-2009, 11:17 PM   #4 (permalink)
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Chevy Trailblazers have them too. Just three along the bottom.

http://l.yimg.com/dv/izp/chevrolet_t...ior_mirror.jpg
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Old 07-15-2009, 06:42 AM   #5 (permalink)
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i once read in an aero article (can't remember where) that the majority of "aero optimisation" done by carmakers is aimed at noise reduction, in case of sidemirrors this often means they're set up to deflect the airflow, away from the glas and onto the door surface, as glass will transmit noise better and is right next to your ears.

if the vg's work as they should they migth produce a smaller wake with smoother flow wich is both good for aero and noise.
on the other hand the lack of noise is perhaps not totally equivalent to good aero as certain mirrors might be designed to deflect turbulence away from the car
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Old 11-11-2009, 09:59 PM   #6 (permalink)
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Old 11-16-2009, 10:05 PM   #7 (permalink)
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Quote:
Originally Posted by Piwoslaw View Post
I saw this today:



It looks like a normal side metro molded mirror pad, but it has 5 notches on the top. I'm wondering whether those could be vortex generators? The car is a BMW 330 Cd (not that I even look at Beemers, but this caught my ecomodder-trained eye). The other mirror also had them. I don't know what year this model is, or whether the mirrors are OEM or aftermarket.

Does anybody got an idea on how much do they cost for some nice sets of OEM on Honda Ridgelines?
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Old 05-07-2011, 12:43 PM   #8 (permalink)
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Quote:
Originally Posted by moorecomp View Post
Here is a screen grab of a Youtube video of a Fiesta. Looks like micro vg's on the top of the mirror. Interesting.

.

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e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

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