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Old 10-21-2010, 11:23 AM   #21
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After thinking about this for several months, for us South Texas guys. While looking at your first pictures it looked fairly good. Now that its boxed in I see some problems. The whole point of this canard/spat is to get air to ramp up over the tire smoothly and keep it out of the wheel well. It seems that you might have traded an abrupt tire for an abrupt spat. The front of the spat is now the aero obstruction. Blow the smoke from dead on in front of the tire and see what it does on the lower portion.

Love your work/vid sorry to be a downer.

Edit: Where did you get the material for the canard? What is that?

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Old 10-21-2010, 12:19 PM   #22
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Very nice work and great info, but what material did you use? Is it ABS plastic?
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Old 10-21-2010, 12:57 PM   #23
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Originally Posted by thesnowboarder View Post
Only to the end of the front subframe, some sort of flatbottom is an idea Ive been toying with alot lately. Mike @ GST motorsports and his L gave me a great idea on how to do it.


Thought this might help your thought process out a bit, doesn't seem like a bad start to me, then again I don't know anything about aerodynamics
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Old 10-21-2010, 01:35 PM   #24
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like it. i think it looks like its working. as far as wing, doesn't really show anything spraying it right in front like that. you need to see what happens after the air goes over your hardtop. as far as angle of attack, i attached small brightly colored yarn strings all over the wing. since i didn't have anyone to help, i attached my gopro to my back window and filmed what the yarn did at 4 different levels of attack. watched the video, it was at max downforce at pos. 3 and started stalling at pos. 4. you could do the same for the canards if your worried about drag.
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Old 10-21-2010, 01:52 PM   #25
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looks like abs. we have small sheets here at the shop. i'm sold on alumalite after seeing matt andrews car in person. it's way stiffer than i imagined. if it's too much, i have thin aluminum sheet at home that'll work.
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Old 10-21-2010, 02:43 PM   #26
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looks like abs. we have small sheets here at the shop. i'm sold on alumalite after seeing matt andrews car in person. it's way stiffer than i imagined. if it's too much, i have thin aluminum sheet at home that'll work.
I learned a lot while wrenching on that car last season, alumalite is awesome. I also learned a lot from looking at the big $$$ Commiefornia cars.
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Old 10-21-2010, 03:34 PM   #27
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Old 10-25-2010, 03:31 PM   #28
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by the looks of the water, it appears that they are doing some good:

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Old 10-25-2010, 04:00 PM   #29
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impressive!
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Old 10-25-2010, 04:23 PM   #30
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Cobb?!
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Old 10-27-2010, 11:02 PM   #31
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Decided to build a wind tunnel and test the aero on a few things. Enjoy.
That DIY wind tunnel is a good idea. I don't think it illustrates the exhaust air coming out of the radiator very well though because yeah a large amount of smoke left through the wheel well. but correct me if I'm wrong but because you were only pushing air into the bumper opening and not across the whole front end and over the hood, wouldn't the Bernoulli effect of the hood vent not work because there is little to no air traveling over the hood to create that vacuum to cause extraction.

Great idea though. I'll have to try that in the future.
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Old 10-29-2010, 01:34 PM   #32
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That DIY wind tunnel is a good idea. I don't think it illustrates the exhaust air coming out of the radiator very well though because yeah a large amount of smoke left through the wheel well. but correct me if I'm wrong but because you were only pushing air into the bumper opening and not across the whole front end and over the hood, wouldn't the Bernoulli effect of the hood vent not work because there is little to no air traveling over the hood to create that vacuum to cause extraction.

Great idea though. I'll have to try that in the future.
I honestly couldn't tell you. My knowledge is very limited in this. The smoke coming out of the wheel well's was to see if the brake ducts moved any air, which I would say does, and does very well.

As for the hood, I couldn't tell you a thing about the Bernoulli effect, but ill do some reading up on it and see what I can find.
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Old 10-29-2010, 06:58 PM   #33
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Or even from the bed of a truck infront of the car... line up a few of those machines...

Anyway, before getting to absurd here... thanks for the video.
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Old 11-08-2010, 03:43 PM   #34
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Nice DIY wind tunnel! Did you happen to test how the air separates from the hardtop roof? Are you using a rear window on the hardtop? I've read that others have found that no window provides the cleanest air to the wing.
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Old 11-09-2010, 01:22 PM   #35
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Nice DIY wind tunnel! Did you happen to test how the air separates from the hardtop roof? Are you using a rear window on the hardtop? I've read that others have found that no window provides the cleanest air to the wing.
We did not, the fan couldn't generate enough flow to really see whats going on over the hardtop. I run a factory rear glass on an oem hardtop for a few reasons. Main reason is because I like to wash the car on a regular basis, and having the rear glass and side windows in makes its 10x easier. Second reason is because I can't get myself to remove a perfectly good oem hardtop w/ oem glass. No one locally has a silver top with even remotely the same paint and busted glass and wanting to trade.
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Old 11-10-2010, 01:48 AM   #36
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looks great!
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Old 11-16-2010, 09:06 PM   #37
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haha I just thought his fender to front bumper clasp was pretty cool.
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Old 12-26-2010, 02:16 PM   #38
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Instead of starting a new aero thread - thought I'd tag it with yours -

IF you could replace the front bumper with flare combinations for better track aero, what aftermarket combinations would you go with? I've been thinnking of an altered Bomex front bumper with some Autokonexion N2 flares - with some canards.

I'm dumb when it comes to aero, but would the best bumper drop straight down from the support and not recess back in like our oem bumpers? - as much as I hate to say it, like the wizdom bumper, but with a MUCH smaller opening
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Old 12-26-2010, 02:29 PM   #39
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Yes a straight down bumper is ideal.
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Old 12-26-2010, 03:19 PM   #40
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I wouldn't run flares on the track unless you ABSOLUTELY have to - they increase frontal area and thus increase drag.
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