LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Big Brake Kit

Thread Tools
 
Search this Thread
 
Old Oct 15, 2011 | 06:53 AM
  #21  
TML529's Avatar
Launching!
 
Joined: Mar 2008
Posts: 254
Likes: 0
From: Parts Unknown
Default

Reply
Old Oct 15, 2011 | 11:27 AM
  #22  
GXP25's Avatar
Thread Starter
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Originally Posted by Haulin_Ls4_GxP
V rotors are 6 bolt so the wont work
Oh the possibilities when you have access to a machine shop.

Originally Posted by TML529
That's the new V. 5x120 mm. We need 5x115 mm.
Reply
Old Oct 15, 2011 | 11:30 AM
  #23  
TheJPGXP's Avatar
TECH Enthusiast
 
Joined: May 2011
Posts: 640
Likes: 1
Default

Originally Posted by GXP25
Nah, I don't think they will.
Oh well.
Reply
Old Oct 16, 2011 | 09:53 AM
  #24  
CAMyers720's Avatar
Teching In
 
Joined: Oct 2011
Posts: 33
Likes: 0
From: Orlando, FL
Default

Hmm, I'm coming close to needing new front rotors. I may consider this. Wonder if you could use the stock caliper on a 14" disc for the added leverage with out the full extra cost of new calipers?
Reply
Old Oct 16, 2011 | 09:09 PM
  #25  
DavidGXP's Avatar
12 Second Club
iTrader: (14)
 
Joined: Jun 2007
Posts: 2,563
Likes: 0
From: Renton, WA
Default

Can you please post caliper weights?
I know the stock CTS-V caliper weighs a little ove 10lbs with pads. What about the stock PBR caliper?

The stock GXP rotor weighs 24-25lbs and the 14" GT500 rotor weighs 25lbs.
Reply
Old Oct 16, 2011 | 09:38 PM
  #26  
GXP25's Avatar
Thread Starter
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Originally Posted by CAMyers720
Hmm, I'm coming close to needing new front rotors. I may consider this. Wonder if you could use the stock caliper on a 14" disc for the added leverage with out the full extra cost of new calipers?
No, 14" rotors will not work with the OEM PBR calipers; they're too large.

Originally Posted by DavidGXP
Can you please post caliper weights?
I know the stock CTS-V caliper weighs a little ove 10lbs with pads. What about the stock PBR caliper?

The stock GXP rotor weighs 24-25lbs and the 14" GT500 rotor weighs 25lbs.
No clue about caliper weights. I could get that information once this is complete.

The GT500 rotors weigh 26.2 lbs each whereas the GXP and CTS-V rotors both weigh the same, 25 lbs each. Not bad for over an inch increase in diameter.
Reply
Old Nov 3, 2011 | 06:17 PM
  #27  
GXP25's Avatar
Thread Starter
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Just some picture updates:





Rotors will be here next week.
Reply
Old Nov 4, 2011 | 02:30 AM
  #28  
TML529's Avatar
Launching!
 
Joined: Mar 2008
Posts: 254
Likes: 0
From: Parts Unknown
Default

Originally Posted by GXP25
Just some picture updates:





Rotors will be here next week.
Definitely interested now. Any proposed release date?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Nov 4, 2011 | 02:34 AM
  #29  
TML529's Avatar
Launching!
 
Joined: Mar 2008
Posts: 254
Likes: 0
From: Parts Unknown
Default

The brake lines and bleeder valve seem to be powder coated over. will those be powdercoated in the production versions? It kinda takes away from the mechanicalness of the Big rotor and makes it look a little cheesy. Still Very Very interested though.
Reply
Old Nov 4, 2011 | 12:07 PM
  #30  
GXP25's Avatar
Thread Starter
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Those aren't powder coated; they're painted. They're at the powder coaters right now though.

The bleeders won't be coated but the lines will (see the image below).

Reply
Old Nov 4, 2011 | 01:13 PM
  #31  
_lenny's Avatar
Teching In
 
Joined: Jul 2011
Posts: 11
Likes: 0
Default

cant wait to see them on the car
Reply
Old Nov 4, 2011 | 03:40 PM
  #32  
WhiteGXP313's Avatar
TECH Regular
 
Joined: Sep 2010
Posts: 442
Likes: 0
From: Sterling Hts, MI
Default

Ohhhhhhhh yeah I'm deff getting these

Edit: anyway I can get them in white with gxp in black?
Reply
Old Nov 4, 2011 | 08:10 PM
  #33  
GXP25's Avatar
Thread Starter
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Possibly.

The ideal color for these calipers is gold. Of course, then there's copper... This is achieved via some serious track work.







http://www.cadillacforums.com/forums...ml#post2583417
Reply
Old Nov 5, 2011 | 08:10 AM
  #34  
TML529's Avatar
Launching!
 
Joined: Mar 2008
Posts: 254
Likes: 0
From: Parts Unknown
Default

Put me down for a set!!!!!!!
Reply
Old Dec 21, 2011 | 10:42 AM
  #35  
GXP25's Avatar
Thread Starter
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Finally got them installed yesterday so I'm still testing them out.

Here's a pic (I'll get more later):

Reply
Old Dec 21, 2011 | 02:40 PM
  #36  
DavidGXP's Avatar
12 Second Club
iTrader: (14)
 
Joined: Jun 2007
Posts: 2,563
Likes: 0
From: Renton, WA
Default

They really fill that wheel up.
Reply
Old Dec 21, 2011 | 04:20 PM
  #37  
GXP25's Avatar
Thread Starter
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

They sure do.

I got that information you wanted. The stock GXP (PBR) calipers weigh 10 lbs each and 12 lbs with pads.

I'll be testing these out on the car for a week or so before some kind of release.

Reply
Old Dec 21, 2011 | 10:22 PM
  #38  
DavidGXP's Avatar
12 Second Club
iTrader: (14)
 
Joined: Jun 2007
Posts: 2,563
Likes: 0
From: Renton, WA
Default

Thanks for posting up the weights. Those cts-v calipers are hard to find. I would love to run a pair with some 2 piece rotors.
Reply
Old Dec 22, 2011 | 03:56 AM
  #39  
WhiteGXP313's Avatar
TECH Regular
 
Joined: Sep 2010
Posts: 442
Likes: 0
From: Sterling Hts, MI
Default

I can't wait for you to finish up on these any idea on what the final price will be?
Reply
Old Dec 22, 2011 | 04:33 PM
  #40  
GXP25's Avatar
Thread Starter
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2009
Posts: 1,392
Likes: 0
From: Orlando, FL
Default

Dirty lens takes dirty pictures. Here are some "clearer" ones (I need to find that damn digital camera).







I'm looking into a darker red.

I cannot speculate on price really as I'm not handling or receiving any of it. I do know that it will not being in the four figures range.
Reply



All times are GMT -5. The time now is 08:37 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE