ZL1 / CTS-V Brakes - Page 24 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

jpgolf14 · 04-13-2012, 11:47 AM

Guys, I have a question.

How can these possibly be a direct swap when the OEM SS calipers have symmetric mounting lugs and the 2009+ CTS-V front calipers are not symmetric. I could be wrong but it sure looks like the SS calipers are symmetric.

To steal Pedder's picture.

bpoirier · 04-13-2012, 03:24 PM

Quote:

Originally Posted by jpgolf14

Guys, I have a question.

How can these possibly be a direct swap when the OEM SS calipers have symmetric mounting lugs and the 2009+ CTS-V front calipers are not symmetric. I could be wrong but it sure looks like the SS calipers are symmetric.

To steal Pedder's picture.

I've got the same CTS-V calipers in the picture on my car. They bolted right up with no issues. Just have to make sure you use the matching CTS-V brake rotor.

JMAC2011 · 04-13-2012, 03:59 PM

fantastic thread!

jpgolf14 · 04-13-2012, 05:17 PM

Quote:

Originally Posted by bpoirier

I've got the same CTS-V calipers in the picture on my car. They bolted right up with no issues. Just have to make sure you use the matching CTS-V brake rotor.

Yes I understand that. There are many examples in this thread. The question is how? You are mounting a non-symmetric caliper to symmetric mounting points. That causes the caliper to rotate and have a different radial center than the rotor. Maybe the difference isn't enough to matter, but I don't see how the caliper could sit correctly. Looking at the picture it looks like the top of the caliper would be closer to the edge of the rotor than the bottom. Can anyone take a look and hopefully a picture. Measure the clearance between the rotor edge and the caliper at the top and bottom of the caliper.

Thanks

jpgolf14 · 04-13-2012, 05:20 PM

Here you can see it in VenomSS's and Bruce's picture. Notice that the right side of the pad is further off the inner edge of the rotor ring than the left side. No big deal but it looks sloppy, and the question is, on the outer edge, does the pad overhang the rotor?

bpoirier · 04-14-2012, 01:27 AM

Quote:

Originally Posted by jpgolf14

Yes I understand that. There are many examples in this thread. The question is how? You are mounting a non-symmetric caliper to symmetric mounting points. That causes the caliper to rotate and have a different radial center than the rotor. Maybe the difference isn't enough to matter, but I don't see how the caliper could sit correctly. Looking at the picture it looks like the top of the caliper would be closer to the edge of the rotor than the bottom. Can anyone take a look and hopefully a picture. Measure the clearance between the rotor edge and the caliper at the top and bottom of the caliper.

Thanks

I just happen to have a picture of my driver's side caliper. It looks slightly offset. I'll have to go out and look at it more closely tomorrow. I did not notice it when I installed mine. I've had no issues with the calipers installed this way. I wonder if the new ZL1 cars are the same way. I'm going to check my friends new ZL1 tomorrow. I'll take a look at his brake setup too. I'll let you know what I find out.

nak3dsnake · 04-14-2012, 12:20 PM

Quote:

Originally Posted by jpgolf14

Here you can see it in VenomSS's and Bruce's picture. Notice that the right side of the pad is further off the inner edge of the rotor ring than the left side. No big deal but it looks sloppy, and the question is, on the outer edge, does the pad overhang the rotor?

ZL1 front brakes.

jpgolf14 · 04-14-2012, 12:28 PM

Quote:

Originally Posted by nak3dsnake

ZL1 front brakes.

Nice, they don't suffer from this issue. Did you look to see how the caliper attaches? Did they use a bracket? a different spindle? or maybe the caliper mounting lugs are slightly different than the CTS-V.

nak3dsnake · 04-14-2012, 12:40 PM

Quote:

Originally Posted by jpgolf14

Nice, they don't suffer from this issue. Did you look to see how the caliper attaches? Did they use a bracket? a different spindle? or maybe the caliper mounting lugs are slightly different than the CTS-V.

No new knuckles or a bracket, same as the SS. Confirmed via GM catalog. Those are justice pete's pictures.

nak3dsnake · 04-14-2012, 12:52 PM

Quote:

Originally Posted by jpgolf14

Nice, they don't suffer from this issue. Did you look to see how the caliper attaches? Did they use a bracket? a different spindle? or maybe the caliper mounting lugs are slightly different than the CTS-V.

Here's another picture of a ZL1 with the brakes at the same angle. Same as the guys bolting on the CTS-V calipers. That's how they are, what more do you need?

jpgolf14 · 04-14-2012, 12:58 PM

Quote:

Originally Posted by nak3dsnake

Here's another picture of a ZL1 with the brakes at the same angle. Same as the guys bolting on the CTS-V calipers. That's how they are, what more do you need?

I don't know what you mean. The picture you posted clearly shows the ZL1 does not have the same issue as the CTS-V swapped SS. Notice the pad inner edge is even. Whereas all the other pictures shown above with the CTS-V calipers it is not even. If everything else is the same, the ZL1 calipers must be symmetric mount unlike the CTS-V calipers, and would therefore be a much better option going forward.

nak3dsnake · 04-14-2012, 01:03 PM

Quote:

Originally Posted by jpgolf14

I don't know what you mean. The picture you posted clearly shows the ZL1 does not have the same issue as the CTS-V swapped SS. Notice the pad inner edge is even. Whereas all the other pictures shown above with the CTS-V calipers it is not even. If everything else is the same, the ZL1 calipers must be symmetric mount unlike the CTS-V calipers, and would therefore be a much better option going forward.

What I mean is from what I've seen they mount exactly the same. The difference may be in the caliper. They may be the same casting, but not the same setup. Or a slightly different casting.

jpgolf14 · 04-14-2012, 05:02 PM

Quote:

Originally Posted by nak3dsnake

What I mean is from what I've seen they mount exactly the same. The difference may be in the caliper. They may be the same casting, but not the same setup. Or a slightly different casting.

Got ya, I agree. It would be really interesting to check out the mounting lugs on the ZL1 caliper. I bet it is symmetric mount. But it is probably going to be a while until someone has one off.

Does anyone have part numbers for the ZL1 calipers and rotors?

stangkilr · 04-29-2012, 12:11 PM

In for part # for ZL1 calipers

04-13-2012, 03:59 PM	#325
JMAC2011 MONGOOSE Drives: 2011 SS Camaro M6 Join Date: Sep 2010 Location: Buford, GA Posts: 178	fantastic thread! __________________ _________________________________ MODS: 470 RWHP / 447 RWTQ Lethal Racing Night Fury 231/242 113-111, C5R chain, dbl springs, Comp pushrods. ARH 1-7/8" Headers and complete exhaust - NO cats! Varraram CAI - Vmax throttle body, ATI 10% underdrive pulley RPS Street Twin - MGW Shifter 3.91 gears + DSS 1000hp axles PFADT - Stage 4 Camaro Road Racing Kit - 8" springs 325# and 600# - ZL Spec Sway bars - Strut Tower Brace - Camber plates. CTSV front calipers - Hawk DTC 30 pads Street: Forgestar F14 20x9 and 20x11, 275/315 Nitto Invo's, Track: TOYO R888 285/35/20 on 4 corners

04-29-2012, 12:11 PM	#336
stangkilr Drives: 2017 Camaro ZL1 Join Date: Jan 2011 Location: Missouri Posts: 621	In for part # for ZL1 calipers __________________ 2017 ZL1 2014 Corvette 2002 Camaro

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04-13-2012, 11:47 AM	#323
jpgolf14 Drives: '87 Camaro Join Date: Dec 2011 Location: WA Posts: 19	Guys, I have a question. How can these possibly be a direct swap when the OEM SS calipers have symmetric mounting lugs and the 2009+ CTS-V front calipers are not symmetric. I could be wrong but it sure looks like the SS calipers are symmetric. To steal Pedder's picture.

04-13-2012, 05:20 PM	#327
jpgolf14 Drives: '87 Camaro Join Date: Dec 2011 Location: WA Posts: 19	Here you can see it in VenomSS's and Bruce's picture. Notice that the right side of the pad is further off the inner edge of the rotor ring than the left side. No big deal but it looks sloppy, and the question is, on the outer edge, does the pad overhang the rotor?