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Old 01-28-2013, 01:42 PM   #41
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Seeing your hood I think has made me change my mind. I was planning on cutout out the front vents like you have an placing a Gurney flap in front of them. After seeing your drop vent I think I'll make that instead. How far down is vent?
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Old 01-28-2013, 11:13 PM   #42
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What do you mean by how far down?
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Old 01-29-2013, 03:14 AM   #43
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I'm guessing he means how large is the opening.
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Old 01-29-2013, 01:39 PM   #44
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Never mind, I went back to your CR.net build thread. I didn't remember seeing the pics of the revised hood vent.

Last edited by Midtenn; 01-29-2013 at 02:07 PM.
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Old 02-03-2013, 11:00 PM   #45
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I was thinking of playing with a speed brake that would be about 50"x4". It would sit under the wing, extend 3" and be flush with the trunk lid. During braking a linear actuator will push the speed brake up (to about 60-80 deg) and once the car gets under 15 mph the brake will go down.

I also found this video
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Old 02-03-2013, 11:03 PM   #46
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Would be cooler if it was two piece and you could also use it to help you turn, ala the Pagani Huayra. If you're going to make your car illegal in practically every class, you might as well do it right.
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Old 02-03-2013, 11:15 PM   #47
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Quote:
Originally Posted by Leafy View Post
Would be cooler if it was two piece and you could also use it to help you turn, ala the Pagani Huayra. If you're going to make your car illegal in practically every class, you might as well do it right.
Like this

I wish some racing classes would allow to use Active Aerodynamics

Or the sucker car this is funny and alot of weight


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Old 02-04-2013, 01:45 PM   #48
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I remember back a few years ago that Vic Sias was developing one on his SM M3. He showed up to the Solo Nationals with it, but it was disallowed (he had to run it in a fixed position). People where saying it would be too expensive to run, but IIRC the pricing was less than what Eric Strelniks is rumored to paid for is dual element carbon wing.
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Old 02-06-2013, 09:32 AM   #49
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Quote:
Originally Posted by Midtenn View Post
I remember back a few years ago that Vic Sias was developing one on his SM M3. He showed up to the Solo Nationals with it, but it was disallowed (he had to run it in a fixed position). People where saying it would be too expensive to run, but IIRC the pricing was less than what Eric Strelniks is rumored to paid for is dual element carbon wing.
There may have been a chicken or egg problem here. The elements that I saw vic testing in 2007/2008 in SFR region weren't very big and didn't have a large effect at solo speeds.

Because anything like that would quickly be protested away, nobody has taken the time to develop a big, multielement version at an affordable price. Because there isn't an affordable one, nobody is petitiong the SEB to allow them. Back to chicken.

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Old 02-06-2013, 06:32 PM   #50
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Well part of the problem is that the rules state you can only have 2 wing elements. His wing was considered 2 elements. He was also within the maximum size allowance. I think he tried to stay within the rules of the time. I think now its written in that active aero is expressing prohibited.
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Old 02-06-2013, 07:12 PM   #51
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I remember noticing that they explicitly banned movable side skirts in the SSM rules... at the time I wondered if someone was awesome enough to have made a sucker car. Good to know
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Old 02-16-2013, 05:05 PM   #52
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Old 02-16-2013, 07:10 PM   #53
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Old 02-16-2013, 07:19 PM   #54
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Quote:
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I posted an article of the building of that car earlier in the thread.
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Old 02-19-2013, 12:12 PM   #55
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Does QLD's "Lightning Composites" have anything to do with an Aussie member of ours with a similar name? The one building CF race Miatas?

Unrelated: I'm also wondering a bit about the wisdom of dumping air into the diffuser. I think it'd be better to dump it into the wake above the diffuser.
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Old 02-19-2013, 12:55 PM   #56
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Quote:
Originally Posted by kotomile View Post
Does QLD's "Lightning Composites" have anything to do with an Aussie member of ours with a similar name? The one building CF race Miatas?

Unrelated: I'm also wondering a bit about the wisdom of dumping air into the diffuser. I think it'd be better to dump it into the wake above the diffuser.
Are you talking about Lightyear
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Old 02-19-2013, 02:27 PM   #57
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That's it. I thought maybe his name was Lightning but I couldn't remember for sure, and that didn't sound right.
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Old 02-22-2013, 11:15 PM   #58
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Lightyear lives in a state one the opposite side of the country.
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Old 02-26-2013, 06:55 PM   #59
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Good thread. What's the highest downforce Miata we know of right now? Just wondering.
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Old 02-27-2013, 01:52 AM   #60
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2,045,070 newton meters.
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