Got to love that LS motor.

Yep, I've been passed many a time by that car between turn 7 and 10...

Results are available - Nine Lives Racing: The "Big Wang" test

How long is the pre order discount going to last?

You mean this bigger 2D wing was less draggy and faster then a smaller 3D wing used incorrectly and mounted to high? Shocking.

Not knocking 9LR, I would have picked up one of these myself if I had not completed building my own wing literally a week before these were announced. But I still want to see real CFD/wind tunnel testing for numbers and lift/drag, not skewed tests vs a 3D wing before I sing their praises.

I wave, every single time. :)

So I posted on 9LR's facebook saying they should provide some data we could use to compare to the APR wings, and they just tagged me back this morning. Here's the free air data they just added to their site. Looks pretty damn good actually. Compare to the charts in my post #53.

https://cimg0.ibsrv.net/gimg/www.mia...70b1b035ae.png

Those are pretty impressive numbers and look like they could be improved considering the lack of a gurney. Can't help but notice this was on a 70" wing, not the 64"/68" that are legal for most miatas in various classes. Still 200lb of downforce @100mph with only 20lb of drag sounds pretty dam noticeable.

My thoughts exactly. I'm trying really hard to resist picking one up now...
Also, yes 9LR's CFD is on a 70" wing, but APR does not list the size they tested the GT-250 with. Since the largest size they offer is a 71", I'd assume that APR's numbers are based off of their biggest wang.

73lbs at 60MPH and 10° without a flap sounds pretty decent too...

So I did a thing... and I'm very happy with it.
https://cimg8.ibsrv.net/gimg/www.mia...6a4f4b5fd6.jpg
The endplates were just to center the airfoil in the box for shipping. I'll be fabricating my own uprights and endplates. I'll also be getting a range of gurney flap sizes to test/tune that aspect.

I'll most likely be going with that wing too. please keep us updated and enjoy

Quick update.
https://cimg4.ibsrv.net/gimg/www.mia...7b07efaa20.jpg
Disclaimer: I am not a professional. I'm not sure how this is normally done but this is how I did it.

You'd actually want to knife blade the rear, and teardrop the front!

https://cimg9.ibsrv.net/gimg/www.mia...e43a499510.png

Front edges are rounded, rear edges are clipped 45º (Best I could do with my handheld router)

That's right. The uprights were HAND routed from 3/8" plate. Mounts and endplates were cut with a laser. Shoutout to Paco Motorsports. :D

Dont worry, everyone who was never into airplanes thinks this too.

Any easy options for a gurney flap?

The wing profile has a slot to allow one to slide in one from the sides...but would require the right profile / the right extruded piece:
https://nebula.wsimg.com/obj/NEQyQ0E...E1Y2Y6Ojo6OjA=

1-3% of chord length according to https://www.sciencedirect.com/science/article/pii/S136988699800010X


Nlr states ~9.5" chord length ergo 0.095-.285" for the flap length. The channel embedded in the wing is about 0.285" already.

Maybe find some aluminum or carbon fiber angle stock to fit?

I measured the width of the channel at 0.086" so that's the approximate limit to how thick the gurney can be to utilize that spot.

It looks like it's designed with something specific in mind which was why I was asking. Using some 90 degree aluminium angle stock it looks like your gurney flap will stick at an odd angle. Could just be the picture that looks like though I guess...