6 Piston Brembo Fronts 4 piston Brembo Rears on a budget - Page 8 - LS1GTO.com Forums

Vendors


Go Back   LS1GTO.com Forums > GTO Tech > Suspension/Steering/Brakes

Reply
 
Thread Tools Rate Thread
Old 12-23-2012, 09:17 PM   #211
bohnman
Horse Power = $$$
LS1GTO.com Sponsor
 
bohnman's Avatar
 
2005 GTO Owner

Join Date: Dec 2006
Location: Arlington Heights, IL
Posts: 3,243


Offline
Send a message via Yahoo to bohnman
Quote:
Originally Posted by Audacious Nick...View Post
Oh wait, why am I think that it's a trailing edge. I was thinking that the cts-v is a trailing setup and mixed them up.

Lol ok so went out there and yes no swapping for the fronts was done but I had to swap the rears.


Sent from my iPhone using AutoGuide.com App
__________________
05 MBM M6, Kooks 1 7/8" w/cats, Bassani Cat Back, SLP UDP, Drag bags, Ported TB, GMM Street, Lovels 0 drop, HE Twin clutch, Rear re-built by 2qwk, Tuned by AMS Performance, CCW 505A 19", 8" J&L subs, The 1st GTO with "GTO" lit rear bumper insert, AUX input. Interior LED Red/Blue (Done by me), LS3 Heads/Intake custom Cam From Bret Bauer

446/395 Mustang Dyno

11 F-150 With Ecoboost
01 HD FLSTFI

<a href=http://www.bohnmancustoms.com target=_blank>http://www.bohnmancustoms.com</a>
LCD screen Options

http://www.bohnmancustoms.com
  Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-24-2012, 03:30 AM   #212
bohnman
Horse Power = $$$
LS1GTO.com Sponsor
 
bohnman's Avatar
 
2005 GTO Owner

Join Date: Dec 2006
Location: Arlington Heights, IL
Posts: 3,243


Offline
Send a message via Yahoo to bohnman
Couple pictures from the inside of the rear wheel showing why the dust shield needs to be cut.





Short video

http://i235.photobucket.com/albums/e...15AE3A6CE3.mp4



Sent from my iPhone using AutoGuide.com App
  Reply With Quote Quick reply to this message
Old 12-24-2012, 08:28 AM   #213
Audacious Nick
Banned
 
2004 GTO Owner

Join Date: Apr 2011
Location: San Antonio, TX
Posts: 2,537


Offline
Those rear rotors and calipers are massive. Holy crap.
  Reply With Quote Quick reply to this message
Old 12-24-2012, 08:48 AM   #214
itsme4g63
Registered User
 
itsme4g63's Avatar
 
2004 GTO Owner

Join Date: Jun 2006
Location: Chicago, IL
Posts: 1,142
Premium Member


Offline
Quote:
Originally Posted by holler...View Post

what wimmmz are those?

Quote:
Originally Posted by bohnman...View Post
I was saying that the left and right are the same size. I have no information on the Camaro SS brakes other than pictures


Jeff, They are the same and so are the pads with the exception of camaro/gxp brakes having m14X2.0 threaded mounting holes vs the ctsv1 m12x1.75.
__________________
My 4 Piston Front Brembo 340mm Setup http://www.ls1gto.com/forums/showthr...821&highlight=
My stock 17 4 Piston Brembo Setup http://www.ls1gto.com/forums/showthr...448&highlight=
My 4 Piston Front CTSV Brembo 355mm Setup http://www.ls1gto.com/forums/showthr...659&highlight=
My 6 piston Front CTSV2 Brembo 355mm Setup http://www.ls1gto.com/forums/showthread.php?t=454917
Front/Rear bracket kits can be purchased at www.bohnmancustoms.com ls1gto sponsor
  Reply With Quote Quick reply to this message
Old 12-24-2012, 09:17 AM   #215
holler
"There's no good sharks?"
 
holler's Avatar
 
2005 GTO Owner

Join Date: Jul 2005
Location: Chi-town
Posts: 1,286


Offline
Quote:
Originally Posted by itsme4g63...View Post
what wimmmz are those?

TR Motorsports C2, they are my winter rims

TR Motorsports C2

braking seems to be a lot more balanced now, less front bias. me likey...
__________________
Frt&Rr 13.7CTS-V Brembo-ARH 1 7/8 Hdrs with hf cats-Vararam Intake-BTR dual springs Plat-Ti Rtnrs-BilletPro Shifter-SpeedInc SI4 Cam and Tune-LS2 intake ported-CXRacing Coilovers 7gF&9gR- Revshift Motor mounts-Turner adjustable end links-SLP Rear Swaybar-Pedders Strut Mounts RR and rear endlink Bush-Pedders Frnt Sway-Energy Subframe Bush-HBD Steering Wheel-19's ROH Drift R's-SLP UD pulley-Corsa Sport Catback Exhaust-JHP Red Gauge-06 tails 412/383 rwhp

Last edited by holler; 12-24-2012 at 09:25 AM.
  Reply With Quote Quick reply to this message
Old 12-24-2012, 11:13 AM   #216
Audacious Nick
Banned
 
2004 GTO Owner

Join Date: Apr 2011
Location: San Antonio, TX
Posts: 2,537


Offline
So I noticed these rotors come in a 12.6" size for the front rotors, as well. If they have the same hat dimensions as the 13.7" front rotors, these could potentially be a great alternative to running 13.7" rotors in the rear, due to less rotational mass and lower cost. Not to mention the rear calipers don't even use the full surface area of that huge rotor, so it's actually detrimental. The only advantage would be the extra heat dispersion. And looks.
  Reply With Quote Quick reply to this message
Old 12-24-2012, 02:49 PM   #217
bohnman
Horse Power = $$$
LS1GTO.com Sponsor
 
bohnman's Avatar
 
2005 GTO Owner

Join Date: Dec 2006
Location: Arlington Heights, IL
Posts: 3,243


Offline
Send a message via Yahoo to bohnman
Maybe I can have 2 options for those that like the big boy looks. Lol


Sent from my iPhone using AutoGuide.com App
  Reply With Quote Quick reply to this message
Old 12-24-2012, 04:02 PM   #218
jegten
riding the wave!
 
jegten's Avatar
 
2004 GTO Owner

Join Date: Apr 2006
Location: NM
Posts: 2,161


Offline
Send a message via AIM to jegten
Quote:
Originally Posted by itsme4g63...View Post
Jeff, They are the same and so are the pads with the exception of camaro/gxp brakes having m14X2.0 threaded mounting holes vs the ctsv1 m12x1.75.

Jeff-would you drill the bracket holes to match the bigger camaro mounting bolts for those of us going with the camaro calipers? thanks!
  Reply With Quote Quick reply to this message
Old 12-24-2012, 04:13 PM   #219
jegten
riding the wave!
 
jegten's Avatar
 
2004 GTO Owner

Join Date: Apr 2006
Location: NM
Posts: 2,161


Offline
Send a message via AIM to jegten
Quote:
Originally Posted by itsme4g63...View Post
...camaro/gxp brakes having m14X2.0 threaded mounting holes vs the ctsv1 m12x1.75.

i take it these are the bolts you are using, how long did you have to get them? thanks!
  Reply With Quote Quick reply to this message
Old 12-24-2012, 08:29 PM   #220
Havoc
Don't drink the Kool-Aid...
 
2005 GTO Owner

Join Date: Nov 2005
Location: SoCal
Posts: 2,861


Offline
Quote:
Originally Posted by itsme4g63...View Post
Jeff, They are the same and so are the pads with the exception of camaro/gxp brakes having m14X2.0 threaded mounting holes vs the ctsv1 m12x1.75.

Quote:
Originally Posted by jegten...View Post
Jeff-would you drill the bracket holes to match the bigger camaro mounting bolts for those of us going with the camaro calipers? thanks!

Sounds like he's referring to the front calipers (because GXPs don't have fixed rear calipers), and you're referring to rear calipers... If so, CTS-V and Camaro rears have the same size threaded holes, and you won't need to swap crossover tubes/bleeders on the Camaro units since they're originally installed in the trailing position.
  Reply With Quote Quick reply to this message
Old 12-24-2012, 08:36 PM   #221
Havoc
Don't drink the Kool-Aid...
 
2005 GTO Owner

Join Date: Nov 2005
Location: SoCal
Posts: 2,861


Offline
Quote:
Originally Posted by bohnman...View Post
Short video

http://i235.photobucket.com/albums/e...15AE3A6CE3.mp4

LOL... what's with the slow speed drive-by and roll to a stop?!! Show a full-on stop from 60 or 80mph!
  Reply With Quote Quick reply to this message
Old 12-25-2012, 08:12 AM   #222
jegten
riding the wave!
 
jegten's Avatar
 
2004 GTO Owner

Join Date: Apr 2006
Location: NM
Posts: 2,161


Offline
Send a message via AIM to jegten
Quote:
Originally Posted by Havoc...View Post
Sounds like he's referring to the front calipers (because GXPs don't have fixed rear calipers), and you're referring to rear calipers... If so, CTS-V and Camaro rears have the same size threaded holes, and you won't need to swap crossover tubes/bleeders on the Camaro units since they're originally installed in the trailing position.

Yes, I am referring to the rears. Thanks for the info, especially the no need to swap stuff, little less work since The pistons are different sizes. Thanks!
  Reply With Quote Quick reply to this message
Old 12-25-2012, 09:45 AM   #223
itsme4g63
Registered User
 
itsme4g63's Avatar
 
2004 GTO Owner

Join Date: Jun 2006
Location: Chicago, IL
Posts: 1,142
Premium Member


Offline
Quote:
Originally Posted by Havoc...View Post
Sounds like he's referring to the front calipers (because GXPs don't have fixed rear calipers), and you're referring to rear calipers... If so, CTS-V and Camaro rears have the same size threaded holes, and you won't need to swap crossover tubes/bleeders on the Camaro units since they're originally installed in the trailing position.

Aye this is true, sorry for the confusion, if any.

Quote:
Originally Posted by jegten...View Post
i take it these are the bolts you are using, how long did you have to get them? thanks!

For the camaro and v2 front yes. Bolt length are determined by the bracket heights, the lengths I used would work with mine only.
  Reply With Quote Quick reply to this message
Old 12-25-2012, 12:19 PM   #224
jegten
riding the wave!
 
jegten's Avatar
 
2004 GTO Owner

Join Date: Apr 2006
Location: NM
Posts: 2,161


Offline
Send a message via AIM to jegten
Quote:
Originally Posted by itsme4g63...View Post
For the camaro and v2 front yes. Bolt length are determined by the bracket heights, the lengths I used would work with mine only.

i know this, but wanted an idea. i am sure bohnman will give us the specs needed.
  Reply With Quote Quick reply to this message
Old 12-25-2012, 02:05 PM   #225
itsme4g63
Registered User
 
itsme4g63's Avatar
 
2004 GTO Owner

Join Date: Jun 2006
Location: Chicago, IL
Posts: 1,142
Premium Member


Offline
Quote:
Originally Posted by jegten...View Post
i know this, but wanted an idea. i am sure bohnman will give us the specs needed.

From what jeff told me he is using stock size material for these if its between 1/2-5/8 thick then the bolts would have to be 35-40mm long.
  Reply With Quote Quick reply to this message
Old 12-25-2012, 04:59 PM   #226
bohnman
Horse Power = $$$
LS1GTO.com Sponsor
 
bohnman's Avatar
 
2005 GTO Owner

Join Date: Dec 2006
Location: Arlington Heights, IL
Posts: 3,243


Offline
Send a message via Yahoo to bohnman
Brackets are 5/8" thick when I sell the brackets I'm including all the bolts required also just an FYI


Sent from my iPhone using AutoGuide.com App
  Reply With Quote Quick reply to this message
Old 12-25-2012, 06:52 PM   #227
jegten
riding the wave!
 
jegten's Avatar
 
2004 GTO Owner

Join Date: Apr 2006
Location: NM
Posts: 2,161


Offline
Send a message via AIM to jegten
Quote:
Originally Posted by itsme4g63...View Post
From what jeff told me he is using stock size material for these if its between 1/2-5/8 thick then the bolts would have to be 35-40mm long.

thanks!
Quote:
Originally Posted by bohnman...View Post
Brackets are 5/8" thick when I sell the brackets I'm including all the bolts required also just an FYI

thanks!
  Reply With Quote Quick reply to this message
Old 12-25-2012, 07:19 PM   #228
miker
'12-'13 ScrScca SM Champ
 
miker's Avatar
 
Monaro CV8

Join Date: Aug 2008
Location: Goose Creek, SC
Posts: 6,501


Offline
Send a message via AIM to miker Send a message via MSN to miker Send a message via Yahoo to miker
Been away for Xmas so I have some questions.

Will this kit include the hub rings so the rotors center correctly?

Can I see a picture looking in the top of the caliper with the pads installed? I want to see the radial location of the pads on the rotor.

Using an off the self stock you will have loose tolorences. Can you measure the axial position of the caliper relative to the rotor? Using feeler gages you can measure it; gap between rotor to caliper (the blocks the pads contact) on each side of the rotor.

You can't switch calipers side to side. The leading and trailing pistons are differant diameter; you need the switch the hard lines side to side.
__________________
2006 Monaro
386/376 Heintz Racing Tune
- .218/.222 .601 Cam, Lunati HighRPM Lifters, Ported/Milled 243s, UDP, Oil Baffle, Comp Trunnions, K&N CAI, ARP Bolts, Catless JBA Shorties
- 18x9 APEX EC7 / 265 RE-11, V2 Brembos, Coilovers, Bushings, Fastrack, Swaybars, ARP Studs, 15lbs Braille, Dual 3" Stainless Catback
- T56, GMM Race, Quicktime Bell, LNC-003, Anti-Hop Axles, 3.5" Alum DS, TrueTrac, 3.73s, Harrop Cover, Sparco Evo2s
- Ron Davis, Derale PS Cooler, JBiz CatchCan, AeroForce, Bel RX65

Last edited by miker; 12-25-2012 at 07:31 PM.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 02:44 AM   #229
bohnman
Horse Power = $$$
LS1GTO.com Sponsor
 
bohnman's Avatar
 
2005 GTO Owner

Join Date: Dec 2006
Location: Arlington Heights, IL
Posts: 3,243


Offline
Send a message via Yahoo to bohnman
Hub rings will be supplied.

The caliper is centered with in the rotor with in .005" there is a supplied shim to get the exact tolerances required for this kit.

Ill take a picture in a little bit of what I think your asking


Sent from my iPhone using AutoGuide.com App
  Reply With Quote Quick reply to this message
Old 12-26-2012, 06:37 AM   #230
Audacious Nick
Banned
 
2004 GTO Owner

Join Date: Apr 2011
Location: San Antonio, TX
Posts: 2,537


Offline
Quote:
Originally Posted by miker...View Post
Been away for Xmas so I have some questions.

Will this kit include the hub rings so the rotors center correctly?

Can I see a picture looking in the top of the caliper with the pads installed? I want to see the radial location of the pads on the rotor.

Using an off the self stock you will have loose tolorences. Can you measure the axial position of the caliper relative to the rotor? Using feeler gages you can measure it; gap between rotor to caliper (the blocks the pads contact) on each side of the rotor.

You can't switch calipers side to side. The leading and trailing pistons are differant diameter; you need the switch the hard lines side to side.

Brakes are both leading, no need to switch sides.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 09:58 AM   #231
miker
'12-'13 ScrScca SM Champ
 
miker's Avatar
 
Monaro CV8

Join Date: Aug 2008
Location: Goose Creek, SC
Posts: 6,501


Offline
Send a message via AIM to miker Send a message via MSN to miker Send a message via Yahoo to miker
Quote:
Originally Posted by Audacious Nick...View Post
Brakes are both leading, no need to switch sides.

The CTS-v has leading rear calipers where as on the GTO they mount trailing. You need to take the crossover lines off and switch them side to side while also putting the bleeders up top.

You can't switch calipers side to side due to piston diameters.

Everything I posted was about the rear calipers. I already have 4pot fronts.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 01:12 PM   #232
bohnman
Horse Power = $$$
LS1GTO.com Sponsor
 
bohnman's Avatar
 
2005 GTO Owner

Join Date: Dec 2006
Location: Arlington Heights, IL
Posts: 3,243


Offline
Send a message via Yahoo to bohnman
Sorry for the delay I've been driving for hours

ImageUploadedByAutoguide1356559884.864815.jpgImageUploadedByAutoguide1356559897.958491.jpg
ImageUploadedByAutoguide1356559911.439580.jpgImageUploadedByAutoguide1356559925.200636.jpg


Sent from my iPhone using AutoGuide.com App
  Reply With Quote Quick reply to this message
Old 12-26-2012, 02:03 PM   #233
Audacious Nick
Banned
 
2004 GTO Owner

Join Date: Apr 2011
Location: San Antonio, TX
Posts: 2,537


Offline
Quote:
Originally Posted by miker...View Post
The CTS-v has leading rear calipers where as on the GTO they mount trailing. You need to take the crossover lines off and switch them side to side while also putting the bleeders up top.

You can't switch calipers side to side due to piston diameters.

Everything I posted was about the rear calipers. I already have 4pot fronts.

Ah, I was referring to fronts. Yes, to maintain proper piston positioning, you must switch bleeders and crossovers.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 02:21 PM   #234
miker
'12-'13 ScrScca SM Champ
 
miker's Avatar
 
Monaro CV8

Join Date: Aug 2008
Location: Goose Creek, SC
Posts: 6,501


Offline
Send a message via AIM to miker Send a message via MSN to miker Send a message via Yahoo to miker
Quote:
Originally Posted by bohnman...View Post
Sorry for the delay I've been driving for hours

Attachment 158695Attachment 158696
Attachment 158697Attachment 158698


Sent from my iPhone using AutoGuide.com App

Looks good; I need these asap.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 03:05 PM   #235
bohnman
Horse Power = $$$
LS1GTO.com Sponsor
 
bohnman's Avatar
 
2005 GTO Owner

Join Date: Dec 2006
Location: Arlington Heights, IL
Posts: 3,243


Offline
Send a message via Yahoo to bohnman
Thanks Miker I was starting to think you we're my toughest critic. Lmao joke joke
  Reply With Quote Quick reply to this message
Old 12-26-2012, 03:11 PM   #236
itsme4g63
Registered User
 
itsme4g63's Avatar
 
2004 GTO Owner

Join Date: Jun 2006
Location: Chicago, IL
Posts: 1,142
Premium Member


Offline
Quote:
Originally Posted by bohnman...View Post
Thanks Miker I was starting to think you we're my toughest critic. Lmao joke joke

Hah, lol, from another thread, and here we are:

Quote:
Originally Posted by miker...View Post
I refuse to run aluminum adapter brackets.

No hard feelings lol.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 03:56 PM   #237
miker
'12-'13 ScrScca SM Champ
 
miker's Avatar
 
Monaro CV8

Join Date: Aug 2008
Location: Goose Creek, SC
Posts: 6,501


Offline
Send a message via AIM to miker Send a message via MSN to miker Send a message via Yahoo to miker
Quote:
Originally Posted by itsme4g63...View Post
Hah, lol, from another thread, and here we are:

No hard feelings lol.

He has me covered with steel brackets.

My opinion on steel vs aluminum is what is the point of saving weight in an area with that much force on it. Yes aluminum will most likely work but I like overkill.

I would have loved to rig up my own stuff but it is hard to do that when you race most weekends and have a day job.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 04:48 PM   #238
itslow
TACHNUP
 
itslow's Avatar
 
2004 GTO Owner

Join Date: Apr 2005
Location: M'town/Johnston, IA
Posts: 1,680


Offline
Quote:
Originally Posted by Audacious Nick...View Post
So I noticed these rotors come in a 12.6" size for the front rotors, as well. If they have the same hat dimensions as the 13.7" front rotors, these could potentially be a great alternative to running 13.7" rotors in the rear, due to less rotational mass and lower cost. Not to mention the rear calipers don't even use the full surface area of that huge rotor, so it's actually detrimental. The only advantage would be the extra heat dispersion. And looks.

Larger diameter rotors have greater braking torque due to the increased caliper distance from the rotor's axis. Not using the entire pad surface isn't detrimental. Most brake setups don't use 100% of the machined surface on the rotor.

The smaller diameter could potentially be beneficial for those who need to use 17" wheels, though.
__________________
Mike
2004 PBM/Black/M6 - Stop/Go/Turn mods - Daily "beater" that is driven year 'round & never gets washed.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 04:58 PM   #239
Audacious Nick
Banned
 
2004 GTO Owner

Join Date: Apr 2011
Location: San Antonio, TX
Posts: 2,537


Offline
Smile

Quote:
Originally Posted by itslow...View Post
Larger diameter rotors have greater braking torque due to the increased caliper distance from the rotor's axis. Not using the entire pad surface isn't detrimental. Most brake setups don't use 100% of the machined surface on the rotor.

The smaller diameter could potentially be beneficial for those who need to use 17" wheels, though.

There is no need for a 13.7" rotor on the rear of this car.
In other news, I think we need to mount the Mercedes 8-pot amg brake calipers.
  Reply With Quote Quick reply to this message
Old 12-26-2012, 05:01 PM   #240
miker
'12-'13 ScrScca SM Champ
 
miker's Avatar
 
Monaro CV8

Join Date: Aug 2008
Location: Goose Creek, SC
Posts: 6,501


Offline
Send a message via AIM to miker Send a message via MSN to miker Send a message via Yahoo to miker
Quote:
Originally Posted by Audacious Nick...View Post
There is no need for a 13.7" rotor on the rear of this car.

Then why does a CTS-v1 have bigger rotors in the rear then the front?
  Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the LS1GTO.com Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -8. The time now is 05:45 PM.




Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2003-2008, LS1GTO.com
Site Banner Design 2005-2007, Cylosoft

LS1GTO.com is not affiliated with General Motors Corp.