: STS-V brembo front set up swap



1BadCadSTS
11-15-12, 03:30 PM
So as most of you know the V series brembo calipers bolt right on to our cars the issue is that the rotors on the V are a 6 lug set up while the non v is a V

Also as most know there is not a simple way to convert to the 6 lug set up cheaply

I had a custom shop machine me some rotors and now the time as come they are toast and Im not about to spend another 500 on custom rotors.

I think I have found a solution for a rotor WHICH will bolt right on and with a spacer work on all 05-07 1SG cars, 08+ use a different wheel with less spacing so I do not think those wheels will work.

I have ordered a set of rotors for thiis car and from there will update if it works. Dont want to get anyone too excited but Im 95% positive this will be a bolt on solution for anyone interested.

Ludacrisvp
11-15-12, 04:13 PM
cool, on the back of the 18" rim used in 08 it says offset is +51mm not sure if that is the clearance you are talking about.

1BadCadSTS
11-15-12, 04:49 PM
Those won't even come close then.


05-07 are 42 mm offset an will only clear with small spacer due to the spokes.

----------

V series have 42mm offset.

1BadCadSTS
11-19-12, 06:41 PM
Got the rotors today

they fit PERFECTLY!

I have an old hub assembly I kept for this very reason along with my old OE set of rotors

now just to wait to get my car back from the dealer to bolt everything up

aliskerov
11-19-12, 11:00 PM
Would love to hear the result. Keep us posted!

scott9001
11-20-12, 05:31 PM
so did you get a rotor made? get some pictures to this thread

1BadCadSTS
11-20-12, 06:41 PM
Originally I did. I now found a rotor from any part store which should work. Love to post pics but my cars still at the dealer!

burkewm
11-22-12, 11:03 AM
Anyway you could post some more details about this? Where did you find/buy your brembo calipers, what rotors did you get? Also I have an '09... might have to do some more research.

EChas3
11-22-12, 05:22 PM
Let's see some facts or it's just fiction.

Anybody can say anything.

Ludacrisvp
11-22-12, 05:52 PM
Those won't even come close then.


05-07 are 42 mm offset an will only clear with small spacer due to the spokes.

----------

V series have 42mm offset.

Wouldn't the 51mm offset indicate that it has more clearance than the 42mm offset? I'm no rim offset expert so I ask.

1BadCadSTS
11-22-12, 08:46 PM
Want a picture of the CTS loaner? Mines in the shop still haha.

----------

Trying to find out is CTS brembos are the same as STS to do a full parts list needed for conversion. Relax guys I will share once I'm sure everything is complete.

Platinum06
11-27-12, 10:54 PM
cool!

scott9001
11-29-12, 09:18 PM
jeeze your car must be getting a major overhaul.... you ever see what pimp my ride can do in 7 days lol joking

1BadCadSTS
11-29-12, 10:00 PM
HAHAHHAH

Yea I just got it back yesterday they had to special order the rad (took time due to holiday) as well as all four cam actuators 4 brand new dws contis and inspection/emissions.

Anywho dove into it tonight and it looks like it wont work. The "sourced" rotor is MUCH thinner in the hub, while everything on the brake side fits and mounts perfectly the CALIPER will not clear the wheel due to this difference and I will need a 1 inch spacer to clear now.

Since our wheels are HUB centric using a simple spacer was OK with the custom made one as it still maintained enough to still provide some hub on rim contact, this new set up will not. I must find someone to produce a 1 inch wheel spacer to that is HUB centric.

Thus far this seems like the option

http://www.ebay.com/itm/HUBCENTRIC-PNP-WHEEL-SPACERS-25MM-5X115-BUICK-STS-05-08-/150821724397?pt=Motors_Car_Truck_Parts_Accessories&hash=item231dace0ed&vxp=mtr

I have emailed the seller to ensure they will work on a STS hub using a stock wheel before purchasing.

Will continue to update

scott9001
12-02-12, 02:54 PM
did the calipers fit behind you stock wheels actually? and okay im verry interested in this if there is anything you need to know let me know and i can look into it do you have the specs for the rotors you need post them or pm me them and i will look into it also

1BadCadSTS
12-02-12, 04:34 PM
Read up. With oe spec rotors it did. The other rotor I'm using has less meat on the hat and thus will not fit without a spacer.

Ludacrisvp
01-21-13, 11:46 PM
How are the brakes these days?

1BadCadSTS
01-22-13, 10:09 AM
Haven't touched it yet. Still need to find a spacer i trust. Only ones I can find are on eBay and I'm not sure I trust them. Search 25 mm hub centric 5x115 spacer and you'll see.

scott9001
01-22-13, 11:02 PM
where did you find the hat spec did you find any online? i am looking because the 2008 chrysler 300 srt8 has a 5x115 bolt pattern and a 14 inch rotor! just need to find the hat size and to be completley honest with you im pretty sure the regular 300 and out sts share the same brake calipers on some modles but not to sure about that

1BadCadSTS
01-23-13, 03:37 AM
Center hub bore on 300c is far too big and unsafe.

Once I find a quality spacer I trust ill share. I am not going to be responsible for some idiot slapping parts on their car which can get someone killed. Brakes are the last thing you want to play with.

Ludacrisvp
01-24-13, 11:22 PM
I'd be a little overly cautious before I'd use rotors made for another automotive line like Chrysler parts on a GM car. Granted I do have 02 camaro SS dual piston calipers on my 01 monte SS but all that was needed there was tap out the camaro caliper bracket to take the 14mm bolt of the monte instead of the 12mm bolt of the camaro. Anyone know someone who can make them (spacers) custom that doesn't cost an arm?

1BadCadSTS
01-26-13, 08:46 AM
The spacers for the rim are cheap. I don't trust them. Eibach doesn't make a set for our car no company I've herd of does. Only these eBay ones which don't sit well with me.

scott9001
03-07-13, 11:27 PM
i read you finished the swap lets see man!

Ludacrisvp
03-25-13, 08:34 PM
I wonder if they can make the right spacers for us?

http://www.motorcitybolton.com/wheel-spacer-plates/5-lug-wheel-spacer-plates.html

What car is/was that car that you found that had the right rotors or were those unreliably thin?

1BadCadSTS
03-26-13, 01:12 PM
2005 Shelby gt500 mustang.

Ludacrisvp
03-26-13, 01:38 PM
So if the rotors from that car work, what are the chances of there being a hub centric spacer that is made for that car that would work for ours?

For the 08+ we would need a 9mm spacer in addition to the GT500 rotors?

1BadCadSTS
03-26-13, 05:14 PM
The lugs are not the same. They are fine for a rotor not for lugs.

Mustang 5x114.3

Sts 5x115

Ludacrisvp
03-26-13, 08:33 PM
Boo. Why does everyone else use 114.3mm? 115 just seems like it would make more sense.

EChas3
03-26-13, 09:41 PM
To annoy somebody who calls themselves Luda....

----------

:)

!

Ludacrisvp
03-26-13, 09:48 PM
Lol. It certainly limits options.

1BadCadSTS
04-06-13, 07:22 PM
See

http://i50.tinypic.com/309sbqt.jpg

scott9001
04-07-13, 06:50 PM
did the factory flex line bolt right up to the caliper or did u use the one from the V?

1BadCadSTS
04-07-13, 08:01 PM
Just bolted on for mock up. Still need to fix the wheel clearance issue but this was to show the gt-500 rotor works flawless.

Ludacrisvp
08-25-13, 07:57 PM
So I drove through the Cadillac dealer today.

Saw a used 2013 XTS4 Platinum w/ 4,300 miles on it in the back of the building. It had some odd stickers on it from GM that made it look to me like it may have been a GM buyback car / lemon-law return on it.

I was surprised to see that it had brembo brakes on the front w/ 5 lug rims too.
This car might give us some additional options for rotors and calipers for the STS and perhaps wheels too.
Not sure on the fine detailed specs of the entire setup but it certainly caught my eye.

Side note, it had its fuel door ripped off of the car too.
This made me notice that the XTS doesn't have a fuel cap, you just put the nozzle into the hole and a little flap opens up for the gas to flow in.

1BadCadSTS
08-25-13, 09:00 PM
Xts is 5x120. Ats has brembos and 5x115.

Calipers will not work from either of them nor will rotors.

Sts v calipers gt500 rotors and ats wheels = win

Or cts-v replicas from oe wheels.

Ludacrisvp
08-25-13, 09:19 PM
lol you certainly have checked all of the options out already...

btlegacy
09-04-13, 02:42 PM
Looking at the specs for the GT500 Rotors I see their hub reg is 71.00mm while the STS is 70.87mm which means that it is insignificant as manufacturing tolerances can account for that 0.13mm difference which is equivalent to 1/200th of an inch. As far as the rotor hat spacing, does the rotor line up into the middle of the caliper when placed on the hub?

1BadCadSTS
09-04-13, 05:04 PM
Pretty sure I posted a pic that shows it fits just fine

btlegacy
09-04-13, 05:05 PM
I see your pic above and it looked great, I just wanted to make sure there wasn't anything else required before I ordered the rotors

1BadCadSTS
09-04-13, 05:32 PM
I see your pic above and it looked great, I just wanted to make sure there wasn't anything else required before I ordered the rotors

2 washers to space the the caliper and 40mm offset wheels or a good spacer for stocks.

Subsailor613
09-04-13, 09:22 PM
1BadCadSTS: What stock brakes did you car have before the swap ? JE-5 ?
AND: Are those 4 piston calipers ?
They don't say Brembos, and are not RED, so it is fooling me, visually.
Thanks :cool2::cool::cool:

Guy.Seminerio
09-04-13, 09:27 PM
For the record the v brake calipers are silver with black v logo and are brembo 4 pistons

1BadCadSTS
05-07-14, 04:35 PM
Just a small update... Got spacers... Should be here Friday....

----------

STS JE5 Centric rotor...

http://www.rockauto.com/getimage/getimage.php?imagekey=2034366&imageurl=http%3A//www.rockauto.com/info/Centric/121.62088_DRA.jpg

ATS J55 Centric rotor...

http://www.rockauto.com/getimage/getimage.php?imagekey=4557921&imageurl=http%3A//www.rockauto.com/info/Centric/125.62138_DRA.jpg


hummmmm.... makes me wonder if in fact ATS caliper will work as a direct bolt on to our cars with ATS rotors....

Our STS uses a 12MM caliper bolt while the ATS uses a 14MM
http://www.mcmaster.com/#catalog/120/1150/=rv5kcg with PN# 6679K16 should fix that...

ATS Caliper is about 1/4" skinner than the V1 also the rotor is taller meaning it will sit deeper in the wheel, meaning smaller offset wheel can be used perhaps a stock one also ATS Brembos clear 17"s....

Just stirring the pot....

Ludacrisvp
05-07-14, 06:18 PM
Maybe if I didn't just complete a full set of brakes last fall I'd look into doing this...

gazayute123
06-25-14, 12:27 AM
hey man can you please tell me how the cts-v calipers with the mustang gt500 rotors work out did it hold up and what rotors did you use for the rear im trying to get some feed back please and thank you

1BadCadSTS
06-25-14, 02:20 PM
I have yet to actually install them. I finally finished the Heads Up Display retrofit and then bought a Grand Cherokee which has taken a significant amount of my time along with finally finishing up a few things on the Camaro.

I HOPE to install them at some point this month since I have all the parts and invested all the money in it, its just a matter of installing everything. My greatest fear is the spacers will stick my wheels too far out and look stupid but we shall see...

Ludacrisvp
06-25-14, 04:08 PM
So put the spacers on and see how it looks before you do the rest of the work.

btlegacy
09-29-14, 11:50 AM
That is very interesting and I was looking into that as well. Especially since the ATS brembos are popping up on Amazon now:

http://www.amazon.com/ACDelco-172-2586-Original-Equipment-Assembly/dp/B00B4KP8E8/ref=sr_1_1?ie=UTF8&qid=1412000338&sr=8-1&keywords=172-2586


Just a small update... Got spacers... Should be here Friday....

----------

STS JE5 Centric rotor...

http://www.rockauto.com/getimage/getimage.php?imagekey=2034366&imageurl=http%3A//www.rockauto.com/info/Centric/121.62088_DRA.jpg

ATS J55 Centric rotor...

http://www.rockauto.com/getimage/getimage.php?imagekey=4557921&imageurl=http%3A//www.rockauto.com/info/Centric/125.62138_DRA.jpg


hummmmm.... makes me wonder if in fact ATS caliper will work as a direct bolt on to our cars with ATS rotors....

Our STS uses a 12MM caliper bolt while the ATS uses a 14MM
http://www.mcmaster.com/#catalog/120/1150/=rv5kcg with PN# 6679K16 should fix that...

ATS Caliper is about 1/4" skinner than the V1 also the rotor is taller meaning it will sit deeper in the wheel, meaning smaller offset wheel can be used perhaps a stock one also ATS Brembos clear 17"s....

Just stirring the pot....

----------

How thick were the washers that you used? I am waiting on my calipers to come in and was thinking of ordering a thicker washer to use instead of 2 thinner ones.


See

http://i50.tinypic.com/309sbqt.jpg

Ludacrisvp
09-29-14, 12:13 PM
Looking at those pics again and that must be the STS rear rotor and ATS front rotor. Based on the design of the STS photo it's clearly made for the drum based emergency brake.

btlegacy
10-03-14, 01:06 PM
I checked out the ATS setup and put them side by side. You would have to use the ATS rotor as it is slightly smaller and slightly thinner. The only thing that may be an obstacle is that the hat seems to be deeper so that may bring it on closer to the spindle.

http://s30.postimg.org/lrpmo4o9t/STSrotor.jpg

targetSTS
10-04-14, 04:31 AM
I also checked it. looks like calipes+rotors and pads from ats should fit. And this will be better setup for me, cause i don't want to use any spacers with my oem wheels.
Who will be the first to buy and check?:)

1BadCadSTS
10-04-14, 10:42 AM
The major obsticle is confirming if the caliper ears on the ATS and STS are the same.

----------


Looking at those pics again and that must be the STS rear rotor and ATS front rotor. Based on the design of the STS photo it's clearly made for the drum based emergency brake.

Pictures are vague at best. Both specs I posted were for front rotors.

btlegacy
10-04-14, 11:39 PM
Found an ATS Caliper listed on ebay with measurements

http://img.auctiva.com/imgdata/1/2/7/4/7/0/7/webimg/725127822_o.jpg?nc=34

----------

I have also been researching rotors to go along with the STS-V Caliper and I have found one that is almost perfect. The only problem is that it is for the Australian Ford Falcon and I have not found a cheap way to get it in the US. Specs are below:

http://s4.postimg.org/56w4y2tot/STS_Vrotor.jpg

1BadCadSTS
10-05-14, 10:58 AM
Wrong GT500 rotors work just fine with V calipers. I posted mock ups. Only issue is wheel clearance.

Also link for the pics? Could be an xts caliper. Looks the same.

btlegacy
10-05-14, 11:25 AM
I tested the GT500 rotors and saw that they work. I was looking for something with a similar hat height so I could mount the calipers directly to the spindle and not space them forward as I only need a few mm to clear my wheels. Here is the auction that the image led me to: http://www.ebay.com/itm/2013-Cadillac-ATS-XTS-Front-Left-Right-Brembo-Calipers-New-With-Scratches-/400629462707?pt=Motors_Car_Truck_Parts_Accessories&hash=item5d476076b3&vxp=mtr

1BadCadSTS
10-05-14, 11:16 PM
Very suspect.

ATS and xts calipers I am 90% sure are NOT the same.

Ludacrisvp
10-05-14, 11:25 PM
Is the ATS brembo caliper even any better than our current calipers? It's hard to tell in those photos but they just look like 2 piston calipers to me... Maybe they are 4 but they didn't show a decent angle of both sides of the inside of the calipers.

btlegacy
10-06-14, 11:12 AM
They have 4 pistons and I agree that the calipers look different. This is the part number I Found for the XTS caliper
http://www.amazon.com/ACDelco-172-2592-Original-Equipment-Caliper/dp/B00B4KP9R4#

1BadCadSTS
10-06-14, 02:43 PM
They have 4 pistons and I agree that the calipers look different. This is the part number I Found for the XTS caliper http://www.amazon.com/ACDelco-172-2592-Original-Equipment-Caliper/dp/B00B4KP9R4#

As I thought. I've had both as loaners and seen them. The ATS caliper is much smaller and probably has a shorter ear length so smaller rotor and why they can be had on 17" wheels. The smallest XTS wheel option is 19 though it looks like an 18" MAY clear.

btlegacy
10-06-14, 04:22 PM
Yep, it appears that the XTS shares the brake setup with the Buick Regal and runs a 345mm (13.6in) front rotor while the ATS runs a 321mm (12.6in) front rotor and the STS-V runs a 355mm (14in) rotor.

This confirm that there is no way the calipers can be the same as the ear length has to be different. The spacing may work to bolt up but you would have to match a rotor to the listed size. The XTS caliper may be an option if it bolts up and if we can find a good 345mm rotor to fit.

The XTS (30mm) also runs a thinner rotor than the STS-V (32mm)
http://www.rockauto.com/getimage/getimage.php?imagekey=4558413&imageurl=http%3A//www.rockauto.com/info/Centric/120.62140_DRA.jpg

Ludacrisvp
10-06-14, 06:36 PM
someone go raid the parts store with ATS and XTS calipers and a bunch of random rotors and our stock 18"s and see what fits

btlegacy
10-07-14, 11:08 AM
I have been keeping a list of the different sizes of front rotors for STS, CTS, ATS, XTS, V, and Camaro. Figured I would add that to the thread as well

http://s21.postimg.org/9bqxqc2sn/Rotors.jpg

----------

In addition here is the list of rotors I have been compiling from the web and from 1BadCadSTS's suggestion as possibilities to work on 5-lug cars with the STS-V caliper. Highlighted boxes are for items that would need to be modified.

http://s30.postimg.org/gqq1rpgn5/rotors2.jpg

cdezey
10-07-14, 02:10 PM
Have you considered Ebay Australia.

btlegacy
10-07-14, 04:03 PM
I checked it out. At first look the best I saw was $290 for a set of rotors plus $140 shipping to the US.

btlegacy
10-08-14, 05:21 PM
I picked up a Camaro SS rotor as its a perfect match in size and height but does not have all the holes of the STS-V rotor. I am going to get a machine shop to bore it out and redrill for the 5x115 lug pattern. I have done some research and feel completely safe in re-drilling them. This is from a Honda forum but applies to this project just as well. http://honda-tech.com/suspension-brakes-54/safety-redrilled-brake-rotors-2374111/ The rotor I picked up is the one below:


http://ecx.images-amazon.com/images/I/31gmagcqKeL.jpg


Once re-drilled it will look similar to the following:

http://i1163.photobucket.com/albums/q560/trexreilley/IMG_0416_zps5762217f.jpg

Ludacrisvp
10-08-14, 07:49 PM
But once it fits on the hub will the caliper still line up with the rotor and will you be able to clear the caliper with the rim?
Also are you using STS-V Brembos or ATS or XTS or Camaro SS brembos?

btlegacy
10-09-14, 09:38 AM
Based on my calculations it should all line up as there is only 0.3mm difference in the hat height. Once it is bored and drilled I will test it and see. This should help me to clear my rim better as it will bring the caliper about 3.7mm closer to the spindle. I am using a standard STS-V Brembo caliper. I first looked at re-drilling the STS-V rotor but with all of the small holes on the face of the hat I believe that is not possible so I am leaning towards this one. I should have the rotor in today to take more measurements and will drop it at the machine shop tomorrow.

ShDmitry
10-11-14, 01:05 PM
Re-drilled STS-V rotor does not look very nice but works well.254529254537254545

Ludacrisvp
10-11-14, 03:29 PM
Spacer details? Which oem rims are you using?

1BadCadSTS
10-12-14, 11:21 AM
rim clearance is the only issue I'm facing on my swap.

ShDmitry
10-12-14, 12:32 PM
Spacer GT-500 1" with shim inside, 18x8 oem rims, front and rear STS-V brembo swap:

254953254961254969254977254985254993:yup:

On the rear you need also to swap brake hoses.

Ludacrisvp
10-12-14, 12:55 PM
Did you make the shim or ?

ShDmitry
10-12-14, 01:33 PM
Yes. To reduce the diameter from 71mm (GT-500) to 70.6mm (STS).

1BadCadSTS
10-12-14, 05:35 PM
Same issue. I have proper spacers though. I just don't trust them.

What rotor did you use for the rear?

ShDmitry
10-13-14, 06:05 PM
STS Factory Brembo J56 Rotors R1 Concepts Eline Series (http://www.ebay.com/itm/390485442906?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT) and Hubcentric Wheel Spacers. (http://www.ebay.com/itm/1-0-5x4-5-to-5x4-5-Hubcentric-Wheel-Spacers-1-2-Studs-1-inch-5x114-3-/281342115067?pt=Motors_Car_Truck_Parts_Accessories&hash=item41814bfcfb)
18000 miles without any problems.

1BadCadSTS
10-13-14, 08:51 PM
STS Factory Brembo J56 Rotors R1 Concepts Eline Series (http://www.ebay.com/itm/390485442906?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT) and Hubcentric Wheel Spacers. (http://www.ebay.com/itm/1-0-5x4-5-to-5x4-5-Hubcentric-Wheel-Spacers-1-2-Studs-1-inch-5x114-3-/281342115067?pt=Motors_Car_Truck_Parts_Accessories&hash=item41814bfcfb)
18000 miles without any problems.

So you ended up using V rotors and redrilling them.

Ludacrisvp
10-18-14, 11:16 PM
So I still cannot understand why it is that the STS wheels used in 08 don't work...

Specifically this rim type:
http://i.ebayimg.com/00/s/MTYwMFgxNTk5/z/Fn0AAOSwR0JUMs0b/$_57.JPG



Here are the specs of the rim used on the 08+ STS:
18" x 8.0" +51mm
http://i.ebayimg.com/00/s/MTIwMFgxNjAw/z/b14AAOxydlFS4nel/$_57.JPG


Here are the specs of the front 18" rim from the STS-V:
18" x 8.5" +51mm
http://i.imgur.com/CcrZjSB.jpg

Here is a side by side comparison using the +42mm spec you provided in the 3rd post (rather than the +51mm that is actually stamped in the wheel):
So if I read this correctly the STS 1SG wheel actually has 2mm more backspacing and therefore more clearance than the STS-V does between wheel and caliper.
http://i.imgur.com/T9rQEKO.png

Here is a side by side comparison of the wheel specs using what is actually on the rim:
So if I read this correctly then you only need 7mm of additional spacing to clear the caliper.
http://i.imgur.com/Tayzx04.png

ShDmitry
10-19-14, 01:23 PM
Hubcentric wheel spacers available only from 10mm, so you will also need longer studs.

I have rims from older model, 2006 or 2007.

Subsailor613
10-22-14, 07:04 PM
TO SUM IT UP ! Stock 18" and definitely 17" rims will NOT work.
So what will work ? Can someone Please sum up the whole conversion .
Thanks
Happy Motoring !:cool2::salute::patriot: