And that is legal in SSM?? I doubt it.

 

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.

 

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

 

TUNA, sharks, dolphins and even *I* swim faster than a boxfish, LOL. How would you like a tuna shaped car?

 

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.

 

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?

 

What screen name does he go by on the forums?

/threadjack

 

Linhbergh posts on cr.net (I know, I know D: ) as sonique128.

 

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.

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):

 

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.

 

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...

 

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