Aero/wing question...with a twist...and my name is not Hyper - Page 3 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 12-10-2009, 05:49 PM   #41
Senior Member
 
Join Date: Dec 2007
Posts: 671
Total Cats: 2
Default

Quote:
Originally Posted by thagr81 us View Post
Not if you get one from Axis Power Racing...
And that is legal in SSM?? I doubt it.


j_man is offline   Reply With Quote
Old 12-10-2009, 06:38 PM   #42
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Quote:
Originally Posted by thagr81 us View Post
Another question... Will this be for top up or down setup? Because that will have an effect.
I've said multiple times that it would be for top up action.


SSM doesn't limit running a hard top regardless what it's made from.
Doppelgänger is offline   Reply With Quote
Old 12-10-2009, 07:24 PM   #43
Senior Member
 
Join Date: Dec 2007
Posts: 671
Total Cats: 2
Default

Quote:
Originally Posted by Doppelgänger View Post
SSM doesn't limit running a hard top regardless what it's made from.
Yeah, right. Show me a Miata OEM hardtop which is lighter than 40+ lbs.
Or which rule allows you to run non-OEM hardtop:

http://cms.scca.com/documents/Solo_R...Solo_Rules.pdf

Hint: no such hardtop rule exist that I know of
The only hardtop related allowance in the rules involves Miatas but it is to remove the soft top so you're conveting the car to the NB Club Sport specs.
So, it is either top down, no top or an OEM hardtop and that's it.
If there is no specific rule allowing you lighter aftermarket hardtop, then the use of such is forbidden
j_man is offline   Reply With Quote
Old 12-10-2009, 08:32 PM   #44
Elite Member
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by faeflora View Post
I think you are going down the wrong direction. For big aerodynamics it would best to take the body off your car and weld a boxfish shaped sheetmetal to your frame.



Boxfish.



See what I'm getting at?
TUNA, sharks, dolphins and even *I* swim faster than a boxfish, LOL. How would you like a tuna shaped car?
JasonC SBB is offline   Reply With Quote
Old 12-10-2009, 08:37 PM   #45
Elite Member
iTrader: (5)
 
Join Date: Apr 2007
Location: Wellford, SC
Posts: 1,704
Total Cats: 1
Default

I figured it was for top up... Just questioned due to the CFD image posted by another user. I never said the APR Hardtop would be legal for your class. I just said you don't have to add weight when adding a hardtop.
thagr81 us is offline   Reply With Quote
Old 12-11-2009, 01:17 AM   #46
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Quote:
Originally Posted by j_man View Post
Yeah, right. Show me a Miata OEM hardtop which is lighter than 40+ lbs.
Or which rule allows you to run non-OEM hardtop:

http://cms.scca.com/documents/Solo_R...Solo_Rules.pdf

Hint: no such hardtop rule exist that I know of
The only hardtop related allowance in the rules involves Miatas but it is to remove the soft top so you're conveting the car to the NB Club Sport specs.
So, it is either top down, no top or an OEM hardtop and that's it.
If there is no specific rule allowing you lighter aftermarket hardtop, then the use of such is forbidden

Regionally, I doubt they would care if I showed up with a CF hard top...and the ATL region is pretty big. I mean, adding a hardtop regardless of material is added weight...and offers no aerodynamic aid at such low speeds. I have been through the ruls and have not found where it specifically says anything about hardtops and SSM. Care to direct me toward the exact section?
Doppelgänger is offline   Reply With Quote
Old 12-11-2009, 01:34 AM   #47
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Quote:
Originally Posted by DontPassTheFence View Post
**threadjack threadjack**

It should be fairly easy to get your car onto SpeedHunters at least - talk to Linhbergh :3
What screen name does he go by on the forums?

/threadjack
Doppelgänger is offline   Reply With Quote
Old 12-11-2009, 01:54 AM   #48
Junior Member
 
Join Date: Mar 2008
Location: Seattle
Posts: 244
Total Cats: 3
Default

Linhbergh posts on cr.net (I know, I know D: ) as sonique128.
DontPassTheFence is offline   Reply With Quote
Old 12-11-2009, 11:47 AM   #49
Senior Member
 
Join Date: Dec 2007
Posts: 671
Total Cats: 2
Default

Quote:
Originally Posted by Doppelgänger View Post
Regionally, I doubt they would care if I showed up with a CF hard top...and the ATL region is pretty big. I mean, adding a hardtop regardless of material is added weight...and offers no aerodynamic aid at such low speeds.
It offers as much aerodynamic aid as the spoilers and wings at these speeds. And if it was allowed you would see some of the wild CSP cars (like the Schenkermobile) with something like carbon fiber 1 lb hardtop specials at $$$$ cost.

Quote:
Originally Posted by Doppelgänger View Post
I have been through the ruls and have not found where it specifically says anything about hardtops and SSM. Care to direct me toward the exact section?
That's the thing - if it doesn't say anything -> only stock is allowed. If you can't find something in the rules, it is forbidden.

The only allowance is deletion of the soft top, which converts the car to the Club Sport package (the one which had the OEM removable hardtop only and no soft top):

Quote:
Originally Posted by 2009 SCCA Solo street prepared rules
MIATA HARDTOP/SOFT TOP
Per 15.1, a Miata covered by the listing in CSP may update/backdate to
the hardtop/soft top specifications of the Club Sport package, which
permit the car to compete with the hardtop on, and/or with the soft

top on, or with both removed.
j_man is offline   Reply With Quote
Old 12-11-2009, 11:53 AM   #50
Junior Member
iTrader: (1)
 
Join Date: Jul 2006
Location: Colorado
Posts: 403
Total Cats: 2
Default

I have to agree a non stock hardtop is illegal in SSM. That's why most top CSP cars and above convert to the club sport no top at all configuration.
Quote:
Originally Posted by Doppelgänger View Post
Regionally, I doubt they would care if I showed up with a CF hard top...and the ATL region is pretty big. I mean, adding a hardtop regardless of material is added weight...and offers no aerodynamic aid at such low speeds.
snip
Then why do it?


EDIT:

While pursuing the rules for something else, I came across 16.1.n which "may" allow an alternate removable top
Quote:
Originally Posted by SCCA Rulebook
16.1.N. T-Tops, targa tops, sunroofs, moonroofs, and similar roofmounted
panels may be removed/replaced with alternate panels
provided that the area of interface is limited to the original perimeter
of the t-top, sunroof etc. or utilizes the OE panel mount
points, and that the contour of any replacement panel surface
does not vary from the contour of the part being replaced by
more than 1 inch in any direction. The material used to construct
the alternate panel and the method used to attach it to the interface
is unrestricted. Any actuation mechanism and the associated
wiring, if any, may be removed.
Might be worth a letter for clarification if you really want to pursue it.

Last edited by Chris Swearingen; 12-11-2009 at 12:56 PM. Reason: further consideration.
Chris Swearingen is offline   Reply With Quote
Old 12-11-2009, 02:17 PM   #51
Elite Member
iTrader: (5)
 
Join Date: Apr 2007
Location: Wellford, SC
Posts: 1,704
Total Cats: 1
Default

And once again, another topic wanders off course... Sigh.

To the OP:
I see what you are saying about the wing being mounted over the rear axle directly to get direct downforce on it. However, you will also not receive as much force being placed on the wing due to the turbulant air striking the wing as compared to clean linear flowing air that is undisturbed. If it were me, I would make a sacrifice and better distribute downforce to the true fulcrum point (center of gravity) and apply that greater force throughout the entire car than at a specific point while trying to scavenge air that has already had an influence on the car. This will be make for a better handling and more predictable handling car as a whole. Hope this helps better explain my logic...
thagr81 us is offline   Reply With Quote
Old 12-11-2009, 02:25 PM   #52
Senior Member
 
Join Date: Dec 2007
Posts: 671
Total Cats: 2
Default

Quote:
Originally Posted by Chris Swearingen View Post
EDIT:
While pursuing the rules for something else, I came across 16.1.n which "may" allow an alternate removable top

Might be worth a letter for clarification if you really want to pursue it.
That is for some potentialy dangerous hatches attached to the roof to get replaced with safer alternatives. The hardtop is not a roof-attached thing though, it is the roof itself. Maybe worth a letter but the answer is predictable
j_man is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
He got banned! Lmaorofl levnubhin Insert BS here 11 02-25-2009 02:32 PM
There's no need to fear!!!! Braineack Insert BS here 4 02-20-2009 11:50 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:05 PM.