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Well this has turned in to a much bigger job than I expected. Is there a trick to getting the original bracket from a non-ZR1 off? Not only is it epoxied to the bumper rail but also to the rear fascia itself. I don't see how that's coming off. On top of that, the nuts with washer wouldn't come off two of the studs because the studs would just spin. I ended up cutting one of them off but now I'm trying to figure out the best path forward.
This is how the ZR1 bracket is supposed to go if I can get the other one off. The big brace then bolts to this and the bumper.
When I get around to mine (waiting on the wing) I plan on leaving the stock bracket in place and fabbing a custom "L" bracket to connect the upper portion of the big wing bracket to the stock bracket. 1 "L" bracket on each leg of the wing bracket (right and left side)
Is it hard to retro-fit a pre ZR1 C7 Z06 to mount the ZR1 wing?
It's labor intensive... and if your a DIY'er and know how to cut and fab and weld you'll be o.k. But it is time consuming and you'll cut up the rear facia / bumper in a few places and the foam crash impact bumper piece...
I've got other pictures on the forums here.
Doug
My GSCE ready for the wing...
Looking at it again this morning there is a rivet in the bracket that lines up with the brace. I'm going to put a spacer between them and run a bolt through then to tie the top together instead of a bracket.
That seemed to work. Now I just need to figure out how you are supposed to adjust the top bracket ends that the wing stantions attach to. Clearly they are adjustable but I see no way to tighten them down the the fascia on the car.
I really expected this to be a lot easier since I was starting from a 2019 but trying to mount the ZR1 spoiler to an existing stage 1 GS has required a lot of cutting of the rear fascia. I had to drill two holes for new studs but also cut 4 slots for tabs that have nothing on the other side of the fascia to click in to, enlarge the existing CHMSL cutout to fit the connector for the one on the ZR1 spoiler, and also cut holes for the wing mounts to pass through the fascia. On top of that, I have two exposed holes at the end of the fascia that aren't covered by the ZR1 spoiler. If I had realized how much work this was going to be in retrospect I would've gone another route.
Here are some pics:
That white spot you see behind the spoiler is one of the aforementioned holes left exposed by the new splitter.
Here is what the cut up top of the fascia looked like in the end. The cut out areas are black, the white areas you see are reflected light.
This is a head on shot of the spoiler sitting on the fascia. You can see the studs, tabs, connector, and plastic pin that all need new holes.
I cant tell, did you install a spacer between the wing bracket and the rear bulkhead of the car? If not, that bolt is only keeping the bracket from flexing backwards. It will still able flex forward if there is nothing stopping it.
Originally Posted by Poor-sha
That seemed to work. Now I just need to figure out how you are supposed to adjust the top bracket ends that the wing stantions attach to. Clearly they are adjustable but I see no way to tighten them down the the fascia on the car.
I cant tell, did you install a spacer between the wing bracket and the rear bulkhead of the car? If not, that bolt is only keeping the bracket from flexing backwards. It will still able flex forward if there is nothing stopping it.
Yes there is a 2" aluminum spacer and washers between the bracket and the brace.
I really expected this to be a lot easier since I was starting from a 2019 but trying to mount the ZR1 spoiler to an existing stage 1 GS has required a lot of cutting of the rear fascia. I had to drill two holes for new studs but also cut 4 slots for tabs that have nothing on the other side of the fascia to click in to, enlarge the existing CHMSL cutout to fit the connector for the one on the ZR1 spoiler, and also cut holes for the wing mounts to pass through the fascia. On top of that, I have two exposed holes at the end of the fascia that aren't covered by the ZR1 spoiler. If I had realized how much work this was going to be in retrospect I would've gone another route.
Here are some pics:
That white spot you see behind the spoiler is one of the aforementioned holes left exposed by the new splitter.
Here is what the cut up top of the fascia looked like in the end. The cut out areas are black, the white areas you see are reflected light.
This is a head on shot of the spoiler sitting on the fascia. You can see the studs, tabs, connector, and plastic pin that all need new holes.
Poor-sha.... Hey, I had the same issue with this "
"That white spot you see behind the spoiler is one of the aforementioned holes left exposed by the new splitter." So I re-drilled the holes to position the spoiler outer ends rearward 1/2" to cover up that hole."
Sean...you mentioned the retrofit is a bigger job than you initially anticipated. By happenstance or GM’s intent to reduce it from being done?.. is it true the only way to get a BAW is with a repair order with VIN and pictures of the damage because they are in short supply?
Last edited by Rinaldo Catria; 04-15-2019 at 11:29 PM.
Excuse me for getting a bit off topic a bit, but I had to share this recent pic I took of a Turbo S with the wing up. Is it just me or does this look really busy?
Sean...you mentioned the retrofit is a bigger job than you initially anticipated. By happenstance or GM’s intent to reduce it from being done?.. is it true the only way to get a BAW is with a repair order with VIN and pictures of the damage because they are in short supply?
On the first point I doubt it's intentional, there's just not a lot to mount to back there. On the second point I don't know.
Excuse me for getting a bit off topic a bit, but I had to share this recent pic I took of a Turbo S with the wing up. Is it just me or does this look really busy?
That is with the areo package and the wing manually extended, yea too much going on.
That seemed to work. Now I just need to figure out how you are supposed to adjust the top bracket ends that the wing stantions attach to. Clearly they are adjustable but I see no way to tighten them down the the fascia on the car.
I received my GM brackets today. I see what you mean about the top bracket ends. Literally a small round peg in a big square hole! LOL! I am surprised there isnt some sort of "flexible" insert (high durometer rubber or ??) that fits the square hole to take up the space and accepts the round bolt.
04-13-2019, 06:41 PM
