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Old 04-16-2013, 04:27 AM   #301
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Should be able to find the limit of grip in T1 of the first hot lap. Why would it take a whole session without getting there?
T1 on this track is 130mph on the GPS (incidated 140) and is an actual 'turn' unlike T1 at Pacific Raceways or Laguna. T2 arrives very quickly (also unlike those tracks) and you need to scrub another 70mph or so to make that turn in. If the car is out of shape from heroics coming out of T1, you will have nowhere to shut down for T2 and barrel roll up the hill into the trees.

I'm simply not comfortable enough with my driving skills or the car yet to take it flat. I try not to act like a baller and pretend there aren't a few dozen guys on this board alone faster than me.
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Old 04-16-2013, 12:19 PM   #302
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Sounds hairy! Maybe start exploring traction limits at T3

And on the a COT wing note, I completely redid my front aero to balance the rear wing, and am still working on more revisions/additions for the front to achieve that balance because the wing is doing so much. There's a lot going on with the car aerodynamically of course, but the COT airfoil is a significant element.

Just set a new class record this past weekend at Buttonwillow 13CW and am the first miata to ever break the 2:00 barrier on street tires.
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Old 04-16-2013, 01:04 PM   #303
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Did anyone else notice that this thread had a beginning, and middle, and a happy ending? How great is that? How often does that happen?
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Old 04-16-2013, 01:08 PM   #304
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It's the fairy tale thread
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Old 04-18-2013, 06:12 PM   #305
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The COT wing and FM mounts were pretty easy to install to the 2000 miata. The End-plates that came with the wing were obviously intended for a steep AOA/ close to body mounting position. so i decided to make some end-plates of my own that (theoretically) should be better suited to my application.

The first set here i created with the intent of being useful at autox speeds.


The second set here are designed to be within the size limitation designated by NASA (12" end-plate height maximum). Sorry they are difficult to see in unpainted plexiglass.


The third picture here shows how great the FM mounts are at being removable for DD use.


They are very easy to mount and remove since i used a riv-nut mounting method and flush mount screws.



I have yet to do much testing other than string testing at steady 70mph on the highway. I will be doing an autox this weekend and will see if these actually make a significant difference at <70mph speeds.
Attached Thumbnails
New Wing to Test-30542_10151361301207019_1740312545_n.jpg   New Wing to Test-10075_10151361301372019_1567548984_n.jpg   New Wing to Test-48042_10151361301502019_1210538616_n.jpg   New Wing to Test-64099_10151361300627019_1006575248_n.jpg   New Wing to Test-528355_10151361300527019_1117006354_n.jpg  

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Old 04-18-2013, 06:15 PM   #306
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Love the invisible end plates.

My first test was done on a track with an average speed of 50 mph and a peak of about 75, and I took off two seconds with just the wing. So yeah, they'll work at lower speeds.
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Old 04-18-2013, 06:23 PM   #307
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Love the invisible end plates.

My first test was done on a track with an average speed of 50 mph and a peak of about 75, and I took off two seconds with just the wing. So yeah, they'll work at lower speeds.
Love the mounts! They only needed minor tweaking with a drill and a little paint to make them perfect. You guys had great timing and follow through in getting these out to us. Cheers!

I am pretty excited to see what sort of difference i can expect. This is also just one more variable that i can tweak in the pursuit of fast laps. Have you found at roughly what AOA (relative to ground level) you are seeing stall with this mount configuration?
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Old 04-18-2013, 07:27 PM   #308
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I have not figured that yet, sorry.
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Old 04-19-2013, 04:19 AM   #309
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Is it just me or is it getting harder to find COT wings. I tried ordering one last weekend but they said they were all out.
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Old 04-19-2013, 05:47 AM   #310
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Is it just me or is it getting harder to find COT wings. I tried ordering one last weekend but they said they were all out.
It makes sense, there were a limited number made and they are gradually finding homes... thats part of the reason I jumped on mine when I spotted it!

Russell.
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Old 04-19-2013, 10:09 AM   #311
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Contact eBay member haycitgo99.
His number is 19734172717. He might have some in stock that are just not posted on his eBay page.
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Old 04-19-2013, 10:50 AM   #312
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It's almost like there was a big spike in demand that chewed up the available stock. Weird.
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Old 04-19-2013, 02:02 PM   #313
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It's almost like there was a big spike in demand that chewed up the available stock. Weird.
I wonder what percentage of these butch man's man wings are on hairdresser's cars now passing American V8s on racetracks?
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Old 04-21-2013, 04:13 PM   #314
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What grade of aluminum and what thickness are you guys using for your mounts that mount to the inside of the trunk. Similar to Flyin Miatas.

I have a GTC-200 that I am making custom mounts for but not sure what to use.
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Old 04-22-2013, 09:49 AM   #315
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I used flat 6"x1/4" plate and my mounts are very solid. Keith is probably using thinner stuff, since those bends will add a ton of strength.

Last edited by jpreston; 04-23-2013 at 01:42 AM.
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Old 04-22-2013, 10:18 AM   #316
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I was not able to see any real benefit to this wing at our local autox event. I wont be using it for anything other than track days from now on.

Speaking of which... i have one coming up this weekend at Summit Point main circuit. I am sure that i will see a huge difference there with an average speed in the 80mph range.
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Old 04-22-2013, 12:41 PM   #317
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The FM ones are 1/8" 5052 aluminum.

I made a second set with the wing about 4-5" higher, and it had a bit more flex than I liked - I could see what the failure mode would be under a high drag load. I added a couple of wires and it got very solid. I'll get pics later today.
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Old 04-22-2013, 12:45 PM   #318
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Quote:
Originally Posted by [email protected] View Post
The FM ones are 1/8" 5052 aluminum.

I made a second set with the wing about 4-5" higher, and it had a bit more flex than I liked - I could see how it might fail under a high drag load. I added a couple of wires and it got very solid. I'll get pics later today.
Wow, mine are milled down to 0.20 6061 t6 and I had to add side supports because it wobbled back and forth over 55. Though my wing is a bit lighter, less symmetric, and provides a less stiff connection between the two wing mounts.
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Old 04-22-2013, 12:59 PM   #319
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Quote:
Originally Posted by [email protected] View Post
The FM ones are 1/8" 5052 aluminum.

I made a second set with the wing about 4-5" higher, and it had a bit more flex than I liked - I could see what the failure mode would be under a high drag load. I added a couple of wires and it got very solid. I'll get pics later today.
Oh wow I wouldn't have thought they were that thin. My friends NSX uses 3/16 titanium, but his wing is only 9" off the deck.
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Old 04-22-2013, 02:40 PM   #320
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The wing certainly helps with lateral strength. It's solidly bolted to the mounts, closing the box. If there were turnbuckles in there, it would be a very different story.
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