Underbody Aero Thread (splitters, panels, vortex generators)

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09-07-2009, 11:07 AM

#101

DazedandConfused

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isnt that the rotary powered miata with n2 flares? sponsored by a composite dealer, but dont see any carbon fiber on it..........nice hp and sound to it though

09-07-2009, 11:11 AM

#102

Splitime

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Quote:

Originally Posted by hustler

I have a sponsor, its my wallet.

I've put that in the sponsor section at the drag strip when they had info cards.

Was amusing to hear it announced.

09-07-2009, 03:54 PM

#103

swerv_on

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Quote:

Originally Posted by dynokiller90

yup! I read about the aero of a golf ball a few years ago it was fascinating. I'm not going to pretend to be an expert or anything like that, but I seem to recall that inducing micro vortecies on the surface makes for a turbulant boundry layer. That boundry layer will consequently stay attached further around the trailing edge leaving a smaller wake and thus less drag.
very cool stuff.

I'm a driver at a Ford dealership and towards the end of the day I tend to wander around and look at stuff I don't quite understand. Anyways we had a Ford GT in the shop recently and I noticed that parts of the undertray were dimpled. Sorry for the poor quality cause I shot it on my phone (photo looking front to back) but towards the back you can kinda see about half of it is dimpled.

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Name: 5454_118678111225_554711225_2744988.jpg
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Size: 18.7 KB

EDIT: wrong quote

Last edited by swerv_on; 09-07-2009 at 04:14 PM.

09-10-2009, 10:36 AM

#104

Splitime

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Well, i have an event this weekend... and last minute decided to finally start my splitter.

Not that I don't have enough random things to finish before the 2day event as is... sigh.

Here is the progress so far.

Things left to do:
Rear reinforcement plate
"wheel cover" pieces on sides of bumper/lip/splitter. Covering the wide front tires widebody style.
Strut supports for sides of splitter

For event:
Oil change
build laptop mount
build gps mount
build mini LCD mount for laptimer/gps

09-10-2009, 10:41 AM

#105

Splitime

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Oh and total cost so far... less than 10 bucks in couplers/threaded rod and steel strips.

09-17-2012, 04:45 PM

#106

triple88a

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Splitter vs no splitter flow/pressure maps, cant find the other aerodynamic thread so i'm posting it here.

Aerodynamics of Engine Cooling – Part 1 « omgpham…

09-17-2012, 04:45 PM

#107

triple88a

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Splitter vs no splitter flow/pressure maps, cant find the other aerodynamic thread so i'm posting it here.

Aerodynamics of Engine Cooling – Part 1 « omgpham…

09-19-2012, 07:56 AM

#108

Leafy

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Quote:

Originally Posted by curly

I've always wondered if propping the trunk open a bit would create the same effect as a rear wing, is that what that red miata with the diffuser did? I would be worried the drag created by letting the air in the trunk would negate any gain from the upwards angle.

Funny how this thread got bumped just now. Go look in Got Cone's album of Solo Nats this year. There is a certain black SSM miata with their trunk open during a run and its touching the wing.

Speaking of this thread also. Splitter (and wing) is hopefully going to be finished by the last race of the year. Going to use the air damn as the spats so that I can make aerofoil profiles for my canards (which can be 15% of my 8sqft total wing area).