After pouring over pictures online of apr gtc-200s, I still dont know what to think of the one I installed tonight. The center piece seems to almost want to create lift, while the back plane and side plates tell me I have it raked too much. Thoughts?

Attachment 177481

 

Your end plates look like they're installed backwards.

Angle of attack in measured from the center cambered edge of the front of the wing to the rear edge. If you have a digital level that works but I just used a flat piece of wood and level app on my phone. I called APR to get some setup advice and they told me to start at 0 degrees and increase by 5 degrees.

There is some good info on APR's site... Link. I am also new to tuning aero mods and will definitely be watching this thread to see if anyone with more experience can chime in.

 

Here's the angle from my phone




So 1.3 deg give or take +/- .4 degree calibrator variation

End plates are at a 17.6 deg slant. I installed those in the way the pre-installed stickers made sense

 

I also had to wrestle the turn buckles into place. See how they look a little twisted in the riser?

 

swapped the end plates...looks normal now. I am convinced THMotorsports gets the products that dont pass QC and sell them on the low low

 

Mine are also a twisted. I actually made the mistake of trying to turn the adjuster with a wrench and stripped one of them. Its easy to just unbolt the bottom of of the adjustable rod, adjust the length and then push it back in.

Pic of end plates:

 

good to know. Glad it's just the stickers that are all wrong

 

Those stupid turnbuckles is why I got rid of that wing. I would make a custom mount.

 

make sure the front bolt is loose before adjusting angle...

all the other coments prety much nailed it. i ran about 1* at the center of the wing based on my phone app

 

stickers arent wrong. you have to physically take the end plate from the left and put it on the right side and vice versa, not just flip them over on the same corner