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Old 01-24-2015, 03:19 PM   #1
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CTSV caliper swap rotor questions.

Hi everyone I want to swap the front calipers on my 2010 ss to the 6 piston calipers found on the ctsv. Ive one this swap on my chevelle and my gto. I always use the Z06 rotor. But I was wondering if I can use the ss rotors instead of a rotor swap.
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Old 01-24-2015, 03:34 PM   #2
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You need to buy ZL1 rotors or CTS-V rotors for the front.
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Old 01-24-2015, 03:58 PM   #3
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Is the diameter different or the hat offset?
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Old 01-24-2015, 04:13 PM   #4
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The CTSV rotors are bigger than the SS rotors so they won't work with the 6 piston calipers.

Check this thread out.

http://www.camaro5.com/forums/showthread.php?t=348133
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Old 01-24-2015, 07:17 PM   #5
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Quote:
Originally Posted by CHMSC View Post
The CTSV rotors are bigger than the SS rotors so they won't work with the 6 piston calipers.

Check this thread out.

http://www.camaro5.com/forums/showthread.php?t=348133
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Old 01-24-2015, 10:50 PM   #6
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Do you know if the rear rotors on the ctsv and camaro ss are the same? I want to buy a matched set of rotors off the cts if I can.
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Old 01-24-2015, 11:44 PM   #7
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No the rear rotors are different. Can't buy a matched set. Need to call a company and have them do a custom matched set.

You can buy a matched set of ZL1 rotors but most companies don't have a matched set for the ZL1 hence why we reference the ctsv for the front rotors so you can get more after market options. Read the thread I provided a link to, it has all the answers there.
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Old 01-25-2015, 02:04 AM   #8
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Quote:
Originally Posted by CHMSC View Post
No the rear rotors are different. Can't buy a matched set. Need to call a company and have them do a custom matched set.

You can buy a matched set of ZL1 rotors but most companies don't have a matched set for the ZL1 hence why we reference the ctsv for the front rotors so you can get more after market options. Read the thread I provided a link to, it has all the answers there.
First of all, Dropspeed is good at sticking with the facts, so I would just read up that thread as you've also mentioned.

As far as I know, the rear CTS-V rear calipers are identical, but configured to be mounted on the other side, so you'd need to modify the bleeder to mount it the way Camaros have and be able to use the bleeder, too. Since the calipers are functionally identical, the rotors should also fit?
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Old 01-25-2015, 06:40 PM   #9
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So the offset is different does anyone know if its a matter of spacing the rear caliper to fit the rotor or is it more inboard and can't space it?
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Old 01-26-2015, 11:24 AM   #10
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The company I bought my rotors from list identical part numbers between a 2013 CTSV and a 2013 ZL1. I believe the difference in rear rotors was only with the earlier (first generation?) CTS-V's.

Front rotors on the CTS-V/ZL1 are ~3/8" larger in diameter IIRC which is why you have to upgrade front rotors when you upgrade front calipers.

If you look at parts for any of the following for years 2012 and newer:
Front Rotors: CTS-V = ZL1
Rear Rotors: CTS-V = ZL1 = SS

All 4 bolted right up to my 2010 SS with no problems (although I had to cut the front dust shields for the larger front calipers).

Rear calipers on the CTS-V are different however because as mentioned above they mount on the opposite side. Some have installed them successfully, but some modifications had to be made (reroute lines, swap bleeder valves, etc).

The link posted above covers all of this and then some.
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Old 01-26-2015, 06:53 PM   #11
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Thanks guys. I never tried, not did I even look at changing the rear rotors as I already had the rotors I needed on the car stock.

I do remember seeing an article on LSXtech or somewhere that the CTS-V rotors had a different offset, but I can't find it. I did find this quote from Pete back in about 2010, but that cannot account for anything that changed 2012+.

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The rear Cadillac CTS-V caliper is the same as the Camaro SS rear caliper. The only difference is color. We did try to rear CTS-V and found the hat offset is a bit different, but the OEM Camaro SS rotor is a perfect match.
On another note a long time friend is the NA sales manager for Disc Brakes Australia. Last week I asked about making a 2 piece rear rotor for our cars and he stated that the issue is the parking brake. It is not a viable option with an aluminum hat so they stay away.

2nd. There are only 2 options for running the CTS-V calipers on the rear. Get the first gen V calipers and grind a notch near the mounting hole OR get the gen 2 V calipers and swap the bleeders and crossover tube top to bottom. (I had both and tried both ways) I preferred the Gen 2 route myself.

Good luck.

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Old 01-26-2015, 07:02 PM   #12
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Just sent a text to a friend in the know at GM and got a quick response. 2012+ CTS-V rotors are the same as the SS.
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Old 01-26-2015, 07:20 PM   #13
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OK cool so if I get set of ctsv 6 piston calipers pads and hardware. And a set of 2010+ cts v drilled rotors. That should be all I need to make the swap I assume. I will reuse my ss rear calipers.
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Old 01-26-2015, 07:52 PM   #14
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Quote:
Originally Posted by Assassinx1 View Post
OK cool so if I get set of ctsv 6 piston calipers pads and hardware. And a set of 2010+ cts v drilled rotors. That should be all I need to make the swap I assume. I will reuse my ss rear calipers.
I think you should get ZL1 2-piece rotors. If you're into looks, they will look better. If you're after function, they will cool better.

I really think this whole thread is very redundant. All this info was in the referenced thread.
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Old 01-26-2015, 07:55 PM   #15
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Just sent a text to a friend in the know at GM and got a quick response. 2012+ CTS-V rotors are the same as the SS.
Thanks for the updated info. I was about to see if you could get an answer to this.

Quote:
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I think you should get ZL1 2-piece rotors. If you're into looks, they will look better. If you're after function, they will cool better.

I really think this whole thread is very redundant. All this info was in the referenced thread.
I don't think he likes to read.
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Old 01-26-2015, 07:56 PM   #16
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Quote:
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Do you know if the rear rotors on the ctsv and camaro ss are the same? I want to buy a matched set of rotors off the cts if I can.
They're the same diameter but not the same "appearance wise".
You can run the CTSV rear calipers on the stock SS rear rotors.
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Old 01-26-2015, 08:24 PM   #17
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Ok thanks for replies but despit the way they look diameter and offset should be fine in rear between ctsv and ss? I want to get a nice set of cts v specific rotors front and rear..
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Old 01-26-2015, 08:28 PM   #18
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Rear is fine. I've done 3 installs including mine with no issues.
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Old 01-27-2015, 09:01 AM   #19
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Originally Posted by Assassinx1 View Post
OK cool so if I get set of ctsv 6 piston calipers pads and hardware. And a set of 2010+ cts v drilled rotors. That should be all I need to make the swap I assume. I will reuse my ss rear calipers.
If this is for the street or a show car then drilled rotors are OK. If you plan on tracking the car I would steer clear of aftermarket drilled rotors. The drilled rotors that come on performance vehicles from the factory are very different that the companies that are buying blanks and then drilling them.

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Old 01-27-2015, 10:57 AM   #20
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I always get Cryo treated like on the z06
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Old 01-27-2015, 11:38 AM   #21
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Quote:
Originally Posted by Assassinx1 View Post
OK cool so if I get set of ctsv 6 piston calipers pads and hardware. And a set of 2010+ cts v drilled rotors. That should be all I need to make the swap I assume. I will reuse my ss rear calipers.
You will also need the following:
*ZL1 front brake lines. The SS lines are not long enough to connect to the larger front calipers.
*Brake fluid. It is impossible to not lose some while doing the swap, plus it is a good opportunity to upgrade to DOT4 fluid.
*Caliper bolts. Some say it is ok to reuse bolts, but they are torque-to-yield and they are cheap to replace ($3 each, 2 per caliper).
*Pin kit. Depending on where you get your calipers from, you may need to get a pin kit.
*Brake pads. Larger calipers and new rotors need new pads.


Some suggestions on the above: Go with stainless brake lines. They are not very expensive and they do make a difference (especially when hot). Motul RBF 600 fluid is an awesome upgrade. Check out Amazon for most of these parts.

Check the above reference thread for part numbers.
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Old 01-29-2015, 09:48 PM   #22
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Thank you.
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