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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
I have a 2008 Z06, and the front splitter seems to have the same issues everyone talks about. When I got the car, the splitter was a bit scraped up, and was sagging maybe 1/8-1/4 inch or so from the fascia. Upon closer inspection, the splitter looks mostly fine (believe or not I don't really care about minor scratches on that part as I consider it to be a wearable item that is easily replaced), but it does look like it's pulled down a little bit, with the attachment holes in the fascia giving way slightly. I've seen people talk about using washers/clips/bolts etc to remedy that - does anyone know exactly how to do this? Hard to tell from the explanations I've seen so far and I don't want to start dismantling things if I don't know exactly what I'm doing. It really bothers me for some reason and I want to fix it.
I have a 2008 Z06, and the front splitter seems to have the same issues everyone talks about. When I got the car, the splitter was a bit scraped up, and was sagging maybe 1/8-1/4 inch or so from the fascia. Upon closer inspection, the splitter looks mostly fine (believe or not I don't really care about minor scratches on that part as I consider it to be a wearable item that is easily replaced), but it does look like it's pulled down a little bit, with the attachment holes in the fascia giving way slightly. I've seen people talk about using washers/clips/bolts etc to remedy that - does anyone know exactly how to do this? Hard to tell from the explanations I've seen so far and I don't want to start dismantling things if I don't know exactly what I'm doing. It really bothers me for some reason and I want to fix it.
Did you have any luck with this? I have noticed my front splitter sags right in the middle like yours is doing. I am guessing the previous owner pushed it against the curb a few too many times. The link about reinforcing the fascia for a ZR1 splitter doesn't really apply here, unless one is putting in that splitter. That is to reinforce the fascia itself preventing the ZR1 splitter from flexing the entire lower portion at speed. Not necessarily resolving what the OP was wanting to fix.
I tried some 3M doublesided tape, but it doesn't hold. I may just deal with it until I replace it with a ZR1 splitter, but would be nice to have it fixed now until then. I am guessing there may be clips of some sort that could be used. Not sure I want to drill right there especially if I end up replacing it anyway.
There are also a few scuffs/scrapes on one corner on the splitter itself as well. I guess that can be sanded without any issue? Not sure if the plastic would simply start fraying more.
This is actually a super simple fix! Jack up the car, the bolts are located underneath the splitter itself no need to remove the bumper at all. I would try to add a few washers to that center bolt and give it a good snug, hopefully that closses up the gap between the splitter and the bumper. I opted for a new carbon fiber front splitter with the fiber glass reinforcement which required the whole front bumper to come off and when doing so, the bumper itself was all messed up in that middle section on where it drags. I actually ended up drilling bigger holes across the front bumper/fiberglass reinforcement to make sure it never dragged ever again. If the wahsers dont help i would drill a bigger hole only in that center bolt and add a bigger bolt its underneath so you wouldn't be able to tell. This video shows how to access/change the front stock plastic splitter.
Do you have the bumper reinforcement? That's what you need. They came stock on ZR1's. Stops all the sag from the downforce from the splitter.
He won't need the reinforcement for the OEM Z06 splitter, only if he goes with a ZR1 style splitter and runs at high speed (120+). Installation requires removal of the front fascia, not a really big deal but some of the retaining clips are known to break, best done with two people.
The center mounting hole for the OEM splitter is prone to pulling out when the splitter is driven into a curb stop or other low obstruction. The fix is either large washers or if the hole thru the fascia is larger, use some thin 1" wide aluminum strapping perhaps 2" long, drill it and then mount the factory fasteners to that. The OEM solitters are definitely consumables, like the air dam underneath.
All z06 and zr1 need the reinforcement. GM poorly designed the front facia and need it to stop sagging over time - doesnt matter what splitter or how fast you go.
All z06 and zr1 need the reinforcement. GM poorly designed the front facia and need it to stop sagging over time - doesnt matter what splitter or how fast you go.
I never had a problem with my 09 Z06 OEM splitter despite hundreds of miles at 150+ MPH, so no.
Since I've been running a ZR1 style splitter with the fascia reinforcement on it for the last 3-4 years, I don't think that will tell me much. But as a racer, I do pay attention to details and know I did not have a problem with speed with the OEM splitter sagging permanently, it was just those damn curbstones. I only got the OEM splitter up to 196.5 MPH MPH, though. I would never have considered running the ZR1 style splitter with it's increased downforce without having the reinforcement installed.
07-22-2018, 02:07 PM
Z06/Grand Sport Front Splitter Questions
