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Big Brake Kit

 
Old 10-13-2011, 06:15 PM
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Thumbs up Big Brake Kit

Hey guys,

A big brake kit is in the works for us GXP owners. This really could apply to all W-body cars, but the way this kit will be laid out (at least initially), it should be an easy bolt on, straight forward kit for the GXP.

Features:
  • 4 Piston Brembo Calipers powdercoated red with "GXP" logo, then powdercoated clear; no more missing logos.
  • Use of OEM wheels. No spacers necessary; Alcoas [and presumably the knockoffs] fit with no issue.
  • Use of OEM brake lines. Saves money versus buying stainless steel brake lines.
  • Better stopping power along with the improved caliper look.
The kit should include everything you'd need, including the required 360 mm (14") rotors. They will be cross drilled like our current ones and rust-free (YMMV).

Price? No clue at the moment. Nothing outlandish though. Two new calipers cost ~$300+ so that gives you some kind of idea.

Test fitting the caliper over the OEM rotor. I knew this wouldn't be a problem. My main concern was WRT the OEM wheel offset.



Here's the complete setup on my car with the GXP's OEM 12.7" rotor:





As you can see, there's more than enough space between the spokes and caliper:

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Old 10-13-2011, 06:18 PM
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what about a pic with the larger rotor?
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Old 10-13-2011, 06:23 PM
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Haven't ordered it yet. It will just fill the wheel a little better/more.

But here's a picture of the same setup (not cross drilled but 14") on a non GXP:

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Old 10-13-2011, 07:34 PM
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Yummy!

What about the rears??
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Old 10-13-2011, 09:06 PM
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Rears are tricky due to the e-brake setup.

While the GXP and CTS-V share the same e-brake setup (drum in hat), there are size differences (hat height, shoe diameter, etc.). It'll be invesitagted as I have rear 4 piston calipers as well.

Wider wheels would be needed to accomodate this. Since this is a GXP brake kit, it's gonna be a while as the GXP rear wheels have a different offset.

I do have an extra set of 18x8s that will be going out back, but that's only gonna happen in a few months or so.

Drum in hat setup:


Last edited by GXP25; 10-13-2011 at 09:15 PM. Reason: Added some more info.
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Old 10-14-2011, 10:25 AM
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Can't wait for this setup to be available. True bolt on no modification kit???
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Old 10-14-2011, 10:33 AM
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Clear 17s? I'm gonna need new rotors and pads soon anyway, why not upgrade.
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Old 10-14-2011, 10:52 AM
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Man, no credit to Dave (DrunkieTheBear)?

Kinda crappy, oh well.

Here is EVERYTHING YOU NEED to do the CTS-V brake upgrade...

http://www.grandprixforums.net/offic...kes-46217.html
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Old 10-14-2011, 10:53 AM
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I heart Dave.

And yes, this guy picked Dave's brain for a couple weeks, then decided he could come here and try to sell the setup like HE was doing the R&D. The only R & D this gxp25 guy has done is ask questions about what has already been attempted.
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Old 10-14-2011, 10:59 AM
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Originally Posted by copgtp View Post
I heart Dave.

And yes, this guy picked Dave's brain for a couple weeks, then decided he could come here and try to sell the setup like HE was doing the R&D. The only R & D this gxp25 guy has done is ask questions about what has already been attempted.
We are actually agreeing on something? LOL...

It is pretty shady...where is the credit for good 'ol Dave who was just trying to help the OP out?
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Old 10-14-2011, 12:30 PM
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Old 10-14-2011, 02:17 PM
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did i miss somthing that said HE had been doing the R&D? or even was selling the kit?
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Old 10-14-2011, 02:20 PM
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Option for no powder coating and no GXP logo?
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Old 10-14-2011, 03:52 PM
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Or black powder coating and no logo.
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Old 10-14-2011, 04:43 PM
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i never get tired of seeing the brakes on that panda........


so if im reading this correctly, and this really is a direct bolt on kit that will fit OEM wheels no problem, then i will purchase this kit without hesitation.
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Old 10-14-2011, 07:24 PM
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This looks really cool, careful or ya may scare this Guy away. Should really help you Autocross guys out 2. Do these 14 inch rotors stand up to the heat of the brembos ?
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Old 10-14-2011, 10:25 PM
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Originally Posted by TML529 View Post
Can't wait for this setup to be available. True bolt on no modification kit???
Correct. None at all.

Originally Posted by TheJPGXP View Post
Clear 17s? I'm gonna need new rotors and pads soon anyway, why not upgrade.
Nah, I don't think they will.

Originally Posted by bluegtp91 View Post
Man, no credit to Dave (DrunkieTheBear)?

Kinda crappy, oh well.

Here is EVERYTHING YOU NEED to do the CTS-V brake upgrade...

http://www.grandprixforums.net/offic...kes-46217.html
This isn't a secret. That's the first page from a simple Google search. Drunkie even posted here about it.

Originally Posted by copgtp View Post
I heart Dave.

And yes, this guy picked Dave's brain for a couple weeks, then decided he could come here and try to sell the setup like HE was doing the R&D. The only R & D this gxp25 guy has done is ask questions about what has already been attempted.
What R&D? Where? Please don't jump to conclusions.

I was the one who spearheaded the GXP lowering springs kit. I made no money off of it nor would I ever want to. In fact, I had to spend money on purchasing the test springs. I also had to edumacate myself on how to install them and did them myself. I do this because I want to. Any benefit I receive, I pass it on to the community. I have a few more up my sleeve. 6 speed automatic will be next...

As for making attempts, this was all started by the vette and F-body guys. But if you really want to get down to it, anyone with access to the CAD data could easily have said if this would have worked or not.

Originally Posted by ghetto joe View Post
did i miss somthing that said HE had been doing the R&D? or even was selling the kit?
Thank you.

Originally Posted by supercatxr7 View Post
Option for no powder coating and no GXP logo?
That'd probably be on the list. It'd be cheaper too. I'm assuming you'd want to paint them yourself as to remove the "V" logo.

Originally Posted by TheJPGXP View Post
Or black powder coating and no logo.
Or that too.

Originally Posted by _lenny View Post
i never get tired of seeing the brakes on that panda........


so if im reading this correctly, and this really is a direct bolt on kit that will fit OEM wheels no problem, then i will purchase this kit without hesitation.
Here's another:



And yes, straight up, bolt on, no issues kit with OEM front GXP wheels, brake lines, banjo bolt, etc. I'll know for sure once I get rotors.

Originally Posted by higsy View Post
This looks really cool, careful or ya may scare this Guy away. Should really help you Autocross guys out 2. Do these 14 inch rotors stand up to the heat of the brembos ?
We'll be using the CTS-V rotors.

Basically, this kit is mainly for GXP owners as a straight forward, bolt on kit, which retains the factory wheels we love, along with the drilled rotors (now 14"), and red calipers with "GXP" logo (now 4 piston Brembos, painted).

For other W-bodies, you start to run into issues with wheels and whatnot. If anything, I'd like to get the guy with the SS who lives here in town to try these out.

But really, no, I don't own a shop. No, I'm not making these kits. No, I'm not making any money off of this.

I already have my own money invested in these calipers and plan on spending more for rotors and powder coating.

Last edited by GXP25; 10-14-2011 at 10:32 PM. Reason: Added some more info.
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Old 10-15-2011, 06:39 AM
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V rotors are 6 bolt so the wont work
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Old 10-15-2011, 06:40 AM
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I for 1 am looking forward to the availability of this upgrade.
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Old 10-15-2011, 06:47 AM
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You sure about that Haulin???
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