CTS-V 6 piston clearance vs 4 piston stock SS

[IBM camaro 2]

Hi I currently have the SS front brembo set up on my v6 camaro and want to upgrade to the CTSV front set up. My question is if I currently clear the SS calipers on my 20x9 +27 factory reproduction zl1 1LE replicas. Will I be able to clear the 6 piston brakes are they larger in width? I know they are obviously much larger length. I have about 2mm clearance with the current brembo set up.
The picture I am including just for showing the look. Yes my rotors are backward will be fixed this weekend :(

Thank you all

[olblue75]

So the CTS-V pads won’t have the roller skates on them and are you 2mm from the wheel face or wheel barrel??

[IBM camaro 2]

Originally Posted by olblue75

So the CTS-V pads won’t have the roller skates on them and are you 2mm from the wheel face or wheel barrel??

Thanks for that info I’m 2mm from the wheel face. I should be go to go if I don’t hit the wheel face. My current SS set up clears well no issues grinding I’m just not sure if the CTSV caliper is wider than the SS caliper that clears.

[olblue75]

If it’s close to the wheel face get a 3-5mm spacer to give you a feel good.

[hrpiii]

I have a CTS-V front brake setup on my SS and have no issues with clearance. Been on there for about 4 years and love them on the track.

[bannonm]

So I have an SS and am going to the 6 pot CTS-V calipers which I just got back from the powdercoater. I measured my SS calipers from the face of the rotor to the face of the caliper and got a measurement of 2.35". So if I understand you correctly you have a 2mm (.078") clearance between the back of the wheel and face of the rotor. Although I could only take bench measurements on the 6 pots with the pads installed and spaced 33mm (thickness of ZL1 rotor) I got 2.42" from rotor face to face of the caliper. That's a 2mm difference further out. I don't think you will clear. If you know anyone with a 1LE or ZL1, use a digital caliper and measure to be sure. I'm confident what I measured is close enough to know it's risky.

[IBM camaro 2]

Originally Posted by bannonm

So I have an SS and am going to the 6 pot CTS-V calipers which I just got back from the powdercoater. I measured my SS calipers from the face of the rotor to the face of the caliper and got a measurement of 2.35". So if I understand you correctly you have a 2mm (.078") clearance between the back of the wheel and face of the rotor. Although I could only take bench measurements on the 6 pots with the pads installed and spaced 33mm (thickness of ZL1 rotor) I got 2.42" from rotor face to face of the caliper. That's a 2mm difference further out. I don't think you will clear. If you know anyone with a 1LE or ZL1, use a digital caliper and measure to be sure. I'm confident what I measured is close enough to know it's risky.

Thank you so much for all of that measuring I really appreciate it. It cleared with 1mm left so I ended up having to run a 5mm spacer on the hub. It’s worked out great so far.