Aero/wing question...with a twist...and my name is not Hyper
12-10-2009, 06:24 PM
#43
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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
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12-11-2009, 12:17 AM
#46
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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
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?
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12-11-2009, 10:47 AM
#49
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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):
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
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.
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12-11-2009, 10:53 AM
#50
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.
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
Might be worth a letter for clarification if you really want to pursue it.
EDIT:
While pursuing the rules for something else, I came across 16.1.n which "may" allow an alternate removable top
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.
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.
Last edited by Chris Swearingen; 12-11-2009 at 11:56 AM. Reason: further consideration.
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12-11-2009, 01:17 PM
#51
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...
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...
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12-11-2009, 01:25 PM
#52
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