[Navy Lifer]

...I will measure the distance from the mounting face to the spokes and compare.

I can' really tell how far off it is - I ordered some 4mm spacers. We will see if those work. Any other ideas?

I've been waiting to find out if this wheel would work on a Brembo-equipped car. What's interesting is that there's a HUGE amount of room with these wheels in their production application (V6 Camaro)--the single-piston floating calipers have much less bulk on the outboard side of the rotor.

For wheels...+35 or higher in order to clear the calipers I believe

It really has nothing to do directly with wheel offset--in fact, the Camaro wheel, at +32mm, has it's hub flange pad closer to wheel center (inboard/outboard position)....the +35 wheel's flange pad is 3mm further out, which effectively "pulls" the wheel further inboard by that amount. The 2016 Camaro SS (with Brembo brakes) has a 20" wheel, and the front offset is +25mm.

Wheel-to-caliper clearance is strictly a matter of adequate radial clearance and proper rear-of-spoke/center to caliper body profiling to leave room for the wheel to turn freely and not hit the caliper.

The 2016 Camaro 18x8.5 wheel, being cast, and having (only) 5 spokes, is probably made with some thicker spoke sections for a reason. This wheel does become a good candidate for G8 GT or Caprice PPV with stock brakes, since the OE wheels were 8", and in the case of the PPV wheels, they're steel and a good bit heavier. These wheels could even have 3mm of flange pad material removed to make the +35mm offset, which I tend to agree is a good working limit for Zeta.

 

[a200qa]

It really has nothing to do directly with wheel offset--in fact, the Camaro wheel, at +32mm, has it's hub flange pad closer to wheel center (inboard/outboard position)....the +35 wheel's flange pad is 3mm further out, which effectively "pulls" the wheel further inboard by that amount. The 2016 Camaro SS (with Brembo brakes) has a 20" wheel, and the front offset is +25mm.

Wheel-to-caliper clearance is strictly a matter of adequate radial clearance and proper rear-of-spoke/center to caliper body profiling to leave room for the wheel to turn freely and not hit the caliper.

Agreed - the radial clearance is fine without the pad dampers. It's the axial clearance that is the problem. To be honest I was not even worried because the change in offset was in the "helpful" direction. Probably should have checked before I bought the tires.....:serious

 

[Navy Lifer]

Yes, I also purchased one of these wheels, with hopes that it "might" work with a Brembo caliper setup (on my 2011 Caprice PPV).....still have not done a trial-fit to see just how bad it is. The wheel will definitely work on the PPV with standard brakes (single-piston floating caliper).

The interesting part of this is that the 2016 Camaro SS has a more compact front Brembo brake setup compared to 5th Gen SS--rotors are 345mm x 30mm instead of 355mm x 32mm, and the calipers were treated to some weight savings in the casting process to contribute to the mass-reduction efforts employed in the Alpha program. While the rotors are not the same PN, it's interesting that the 2011-2016 Caprice PPV front rotor is also 345mm x 30mm--the only thing I've not done is put them side-by-side to see if they're the same as far as fit/form/function (hat height?). I know the Camaro 345's are FNC treated, where the Caprice rotors are not, so it's a given that they would have different PN's. I suspect that the Camaro 345's are also pillar-vane venting design--I don't recall whether the PPV 345 rotors are straight or pillar vane.

 

[a200qa]

So I did some measurements, and as far as I can tell, the 18" Camaro wheels WILL NOT clear the calipers axially. The caliper is 4.5" away from the wheel center in the radial direction. With the wheel removed, I measured the distance from the wheel mounting surface to the back of the wheel spoke, 4.5" out from the center. The SS wheel measured 40mm. The Camaro wheel measured 25mm. It is easy to see as well - the SS wheel spokes are "stepped" where the spokes radiate from the wheel center. The Camaro wheels are tapered. I am doubtful that spacers will work. I am rather annoyed with myself for not test fitting the rims before I had the tires mounted........

 

[Navy Lifer]

That is a different wheel--it's 18 x 7.5, and was the standard alloy wheel for 2013-2015 Camaro. Never a question about whether it would fit...NO!

I'm talking about THIS wheel. Standard on 2016 V6 Camaro - 18 x 8.5, +32mm offset.

 

[a200qa]

That is a different wheel--it's 18 x 7.5, and was the standard alloy wheel for 2013-2015 Camaro. Never a question about whether it would fit...NO!

I'm talking about THIS wheel. Standard on 2016 V6 Camaro - 18 x 8.5, +32mm offset.

Well, live and learn....

I'll have to get the tires dismounted, remove the sensors and find different wheels..

 

[a200qa]

The pics in some of the Ebay ads for '16 18" Camaro wheels on ebay show the same sort of very sharp step from the center of the wheel as the SS wheels.
http://i.ebayimg.com/images/g/Q8YAAOSwxKtX~4u4/s-l1600.jpg
I would venture that they would fit. But not quite ready to make that bet.......

 

[a200qa]

The 13-15 Camaro 18" wheels dont' fit. Really.

Well, mostly out of stubbornness, and partly out of curiosity, I decided to see if I could *make* the 18" 13-15 Camaro wheels fit. So I ordered a set of 1/2" hubcentric wheel spacers and ARP studs from https://www.motorsport-tech.com/. They will custom make adapters/spacers/rings to help make many mismatches work. In this case it was a 66.9 hub to 66.9 hub 1/2" thick 5/120 spacer. The spacers were very nicely made. Replacing the studs with longer ones was easy, and the spacer fit beautifully. The wheel cleared the caliper by just the right amount. Alas, the wheel was just too far out. I was worried that at full bump it would hit the fender lip. See pics for summary.

I will figure out my plan over the winter. My SS will be in hibernation. In the mean time I need to get the tires dismounted and get the wheels on ebay. For cheap.

 

[Navy Lifer]

Winter wheels - GM

From Post #3 of this thread:

I didn't run the 2016 Camaro 18 x 8.5 "standard" wheels through the fitment calculator, but I suspect they would be OK for winter wheel/tire purposes on the SS sedan, once the brake clearance question is answered, recognizing that non-spec front brake pads may be required for safe fitment.

From Post #25:

I'm talking about THIS wheel. Standard on 2016 V6 Camaro - 18 x 8.5, +32mm offset.

Finally did a fit-check. This wheel does fit/clear production Brembo front 4-piston caliper, but cannot be used with D1474 brake pads (w/pad dampers). Either remove pad dampers, or use G8 GXP spec - FMSI D1001 or D1050, as in Hawk HB453

Hollander exchange #5758

Wheel weight is under 25#, FYI.

 

[s1k]

From Post #3 of this thread:


From Post #25:


Finally did a fit-check. This wheel does fit/clear production Brembo front 4-piston caliper, but cannot be used with D1474 brake pads (w/pad dampers). Either remove pad dampers, or use G8 GXP spec - FMSI D1001 or D1050, as in Hawk HB453

Hollander exchange #5758

Wheel weight is under 25#, FYI.

Thank you for your efforts. :thumbsUp::cheers::smiley_flag: