dvandentop

if so very difficult at all?

didnt see an install process on the apr website.

thanks

mcar00

Can't be too hard. I left to go pick up a pizza (the best use of my time) and by the time I got back JD and another buddy had mine installed. Thanks guys!

AU N EGL

Wing supports should be mounted to the frame, not the rear deck

John Shiels

no Velcro mounts?

JDIllon

6 holes! 3 on each side. Takes about 30 minutes. Great down force. Give me a call Derek, if have any questions. JD

redtopz

Installed one on my C5Z in about 30 minutes. It provides a lot of rear downforce (even at zero AOA) and if you don't balance the front you will be pushing pretty bad after a couple laps.

Webz

Easy install. Works great!

dvandentop

thanks guys, got an apr front splitter now so should be good for front aero

how does the rear wing bolt through? the rear 1/4 panels i am guessing? or are the holes drilled through the rear tub as well which is a pretty strong material?

thanks not sure i will get one just researching now

also who would i order from to get the NASA discount on the spoiler?

Webz

Bolts thru the hatch at the outside back corner. I sent APR an email and they sent a copy of the installation instructions prior to purchase.

davidfarmer

I have the instructions. They bolt through the deck, and have a reinforced backing plate. Should be fine as long as you don't hit anything (I've done exactly that, ripped the deck right off).

Anyway, personally I'd probably just run some threaded rod down through the plate to the frame for a bit of extra safety, although deck mounting is fine (IMO) for DE usage.

dvandentop

can you email them to me

dvandentop@msn.com

thanks

geerookie

Call APR direct. They will set it up for you.

WNeal

I have seen said wing and this is a quality install no doubt.
Very clean.

davidfarmer

sent via email.... drill a few holes, bolt it on.

dvandentop

thanks alot david, looks pretty simple for sure~

96CollectorSport

I just wanted to let any of you guys who are running these wings or thinking about running them to keep an eye on them.

There are 2 guys running them in HPDE's at Road America and they have had several wings crack. Fortunately they have not had an outright failures but they had some crack at the mounts and others crack on the leading edge. I know Road America is very fast and puts more stress on these wings than many other tracks but keep an eye on them!

Personally I think you get what you pay for with wings and these are about as cheap of a "wing" as I have seen. If you compare this wing to the ACP World Challange wing you will see a big differance! You could easily break this wing in half if you put it across your knee, not so with the ACP wing. I understand that the ACP wing is over $3k and the APR is closer to $1k but again you get what you pay for.

Here is a thread about a STi that crashed at VIR because his APR GT300 failed - this is the same wing element used on the C5. They mounted it higher that weekend 17" vs 10" but it still failed.

http://www.nasaforums.com/viewtopic.php?f=23&t=33849

This is not an attack on APR but more of a warning to those thinking about putting one of these on there car. Once you start using these aero pieces you pretty much can't make certian corners without them.

IMHO save your money and get a real wing that you won't have to wonder if it's going to be there when you need it.

mcar00

I've had my APR wing on high speed tracks such as VIR and Sebring with no issues for about a year now. I know others who have as well.

As for the STI failure. If I remember correctly they mounted it with some kind of custom mounts well above where it was designed to be used. Not sure that's a good example.

Appreciate the heads up however!

96CollectorSport

If you read through the linked thread there are several things that are taken into account. I would consider it a must read for anyone who is thinking about installing one of these wings onto there track car. Especially if it's an HPDE/TT car without a cage!

Here's the wing installed with the original APR mounts.


Here's the wing installed with there custom mounts.


Here is a picture of what failed.




These are the mounts that rivet to the wing, I've seen APR Corvette wings crack in this same area. Fortunately we kept an eye on our equipment and noticed it before taking the track.

Now compare this to the ACP wing


The ACP wing has bolts going through the wing down to an aluminum mount.

You can blame it on the custom mounts or the fact that it was in clean air, but if you look at the photo's of what failed it's pretty telling.

Here's an example of a side load test of a high quality wing element.

There is no way the APR wings would stand up to anywhere near that kind of abuse.

Again I just want people to be aware of what has happened and could happen if you are not careful with what you put on your car. If you do decide the APR wing is the one for you please keep and eye on it and check it everytime before you go out on the track.

wallyman424

To echo joel by providing pretty pictures of how wings SHOULD be made.

My kognition wing. NO other wing is built like this with internal ribbing.

redtopz

It looks like the mistake made by the Subaru owner(s) was using the stock mounting device (basically 2 carbon fiber plates sandwiched over the deck lid with 3 studs) with a support structure twice the height of the ones supplied by APR. That in effect doubles the lever arm and doubles the force applied to the support structure and trunk lid. It actually probably more than doubled the forces due to the cleaner air above the roof line plus the fact that the wing was moved further aft of the supports, which causes not only the drag on the wing to pull on the supports, but a larger fraction of the downforce to pull on the supports. Not a good idea. If you raise the wing higher than the APR supplied supports you should definitely tie the supports down to the frame of the car. Not a bad idea to do so even with the stock supports IMO.