You can not look at a picture of a airfoil and tell you if its good or not (maybe unless you design them for a living or something and have enough experience). It requires air tunnel testing or an exact model to run CFD analysis. If the company knows what they are doing and actually engineered it, they will release a report with the product similar to the APR one. If they don't they probably just reverse engineering some other design making it a guessing game of how good of a copy it is. There's a reason why APR wings cost what they cost, they have engineering time put into their design.

So in summary, either someone has that exact wing and can chime in or you should buy one for yourself, or you buy it and test it and let us know how it goes.

I think when the ad says designed by NASA they mean NACA which means that profile should be in the NACA database and you should be able to figure out what profile it is and how good it is.

Found this while browsing English Racings site: Trunk Spoiler-Wing :: CLEARANCE & USED PARTS no idea if it would be any good for laz. Thought I would throw it out there though.

Bumping this thread instead of starting a new one.

Does anyone have pictures of the miata-specific APR GTC-300? I've tried searching here and with google image search but all the pictures I'm finding look like a GTC200. The APR website shows that the GTC300 has angle adjustment via multiple mounting holes on the uprights, but the pictures I'm finding for "miata GTC300" show angle adjustment via turnbuckles like the GTC200.

I believe the Slickauto car was running a 300, it's an APR sponsored car and the wing is visibly wider than the old v1 200 that was out at the time of that car's building. Unfortunately all the pics I can find of that car are low res but it doesn't look like there are turnbuckles on the back there:


https://www.miataturbo.net/attachmen...ine=1434995790

edit:

I think William was also running a 300 on his old car;

http://949racing.com/server/track/mr...lwilliam_1.jpg

Yeah, that one doesn't appear to mount to the trunk lid which makes me think it's a universal GTC300. I'm wanting to see the miata-specific uprights that bolt to the edges of the trunk lid.