Baer GT plus brake kit clear 17" wheels? - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 31 Old 11-07-2016, 01:04 PM Thread Starter
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Baer GT plus brake kit clear 17" wheels?

I know this kit is discontinued, but looking at a set of C5 calipers and Mustang specific abutments. Caliper will be identical to the Baer GT plus kit

Baer GT Plus Brake Kit | JEGS

Does that caliper setup clear the 17x8 SN95 wheel?


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post #2 of 31 Old 11-07-2016, 09:26 PM
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Edit: I might have spoken to soon. The first product is a fourteen inch rotor? How big of a rotor are you looking at?


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post #3 of 31 Old 11-07-2016, 09:42 PM Thread Starter
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Edit: I might have spoken to soon. The first product is a fourteen inch rotor? How big of a rotor are you looking at?

Not the 14" kit.

This one

http://www.mustangandfords.com/how-t...brake-caliper/

Claims 13.1" rotor like the cobra. My concern is caliper is larger than cobra caliper. Just wondering if it will clear with 17s
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post #4 of 31 Old 11-08-2016, 09:07 AM Thread Starter
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Well,

It's tight. But does clear. Need to get some pads for final test fit before confirming everything OK

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post #5 of 31 Old 11-09-2016, 07:14 AM
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I have that kit but it is the Baer kit for the Vette and it clears my 17 inch Cobra R C58's. 13 inch rotor as well.
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post #6 of 31 Old 11-10-2016, 10:43 AM
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i thought the corvette calipers used a thicker rotor... 13 x 1.25?

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post #7 of 31 Old 11-10-2016, 11:49 AM Thread Starter
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Originally Posted by pkstang View Post
i thought the corvette calipers used a thicker rotor... 13 x 1.25?

They do. 13.4" x 1.25", vs 13.1" x 1.1".

I'm using Mustang specific abutments, and will never put enough miles on the setup to worry about the pistons extending out too far.


I believe there are 13 x 1.25" options for the Mustang as well



BTW:, the part number for the Mustang specific abutments is Baer: CBK 322325

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post #8 of 31 Old 12-05-2016, 01:54 PM Thread Starter
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Just to update. Got this project done. Of course, snow now flying up here, so won't be able to head out to bed in the brakes and give them a try.

I'll eventually get my OE Ford cobra rotors resurfaced, but in the meantime trying out some "bling" rotors for my street cruising.

The rotors are 13" Cobra, the brackets are Baer p/n P/N CBK322325 which were $135 each, and the calipers are obviously GM, but a few other vehicles share the same casting. 05-06 GTO, and the caliper that comes in the Baer GT plus kit I mentioned before.

Fit is very OEM, and these share the same 40mm pistons my Mach 1 calipers had. I love how the pad sweeps more of the rotor face. One of my peeves of the cobra style brakes.



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post #9 of 31 Old 12-05-2016, 11:25 PM
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Where did you get the rotors and how much? Nice work by the way..

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post #10 of 31 Old 12-06-2016, 11:29 AM Thread Starter
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They are R1 concepts E-line rotors I got off ebay for under $200


Eventually, I do want to look into the 1.25" thick 2-peice rotors. These were just something to put on for now to get some instant eye appeal.


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post #11 of 31 Old 12-06-2016, 11:59 PM
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Is there even enough room there for tape-weights on the wheel?

Got me scratching my chin anyways.
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post #12 of 31 Old 12-07-2016, 10:03 AM Thread Starter
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Is there even enough room there for tape-weights on the wheel?

Got me scratching my chin anyways.
The caliper clears the rim with plenty of space, so not worried there. But tape weights would be close. I have some, so if i get a chance soon, i'll attach one and jack up the wheel and give it a spin.

The weights on my wheels are mounted on the outer rim, so not an issue for me, but i would like to run tape weights if i can.

Hard to get a sense of the gap from these pics however. (damage on caliper was preexisting. Why i only paid $50 for it brand new)



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post #13 of 31 Old 12-09-2016, 11:12 AM
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My Baer T4's cleared 17x8 FR500's before I bought my TF wheels.
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post #14 of 31 Old 02-22-2017, 07:13 PM Thread Starter
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Is there even enough room there for tape-weights on the wheel?

Got me scratching my chin anyways.
Putting a new set of rims on. These are for the street, so I want to run tape weights.

It's close. That's a 1/2" wide wheel weight, and the inside corner is maybe 2-3mm from the fin on the caliper? Caliper is pretty fixed, so not a lot of movement, and as it wears, the caliper will draw inwards away from the weight.

Need to decide. Should I run the 1/2" wide tape weights right to the outer edge of the inner rim portion as shown? I'd imagine there's not that much deflection. Again...this set of rims is for street driving only...to local coffee shop


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post #15 of 31 Old 02-23-2017, 01:12 PM
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Quote:
Originally Posted by Mustang5L5 View Post
Putting a new set of rims on. These are for the street, so I want to run tape weights.

It's close. That's a 1/2" wide wheel weight, and the inside corner is maybe 2-3mm from the fin on the caliper? Caliper is pretty fixed, so not a lot of movement, and as it wears, the caliper will draw inwards away from the weight.

Need to decide. Should I run the 1/2" wide tape weights right to the outer edge of the inner rim portion as shown? I'd imagine there's not that much deflection. Again...this set of rims is for street driving only...to local coffee shop

I have my wheels static balanced and place the weights on the extreme inside of the wheel, nearest the engine to keep them as far away from the brakes as I can because the brake heat used to make the adhesive let go. Should work for you too.

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post #16 of 31 Old 02-23-2017, 06:40 PM
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On my various wheels over the years I've seen tire shops do it both ways - tape weights all the way out to the backs of the spokes, and tape weights towards the inside lip - so I think either way is perfectly fine.

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post #17 of 31 Old 02-24-2017, 11:10 AM
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If you run that car on the track, I'd be surprised if those tape weights aren't gone after a track day (ask me how I know).
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post #18 of 31 Old 02-24-2017, 12:44 PM
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I tape over mine with aluminum tape, they don't drop off in the paddock anymore LOL
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post #19 of 31 Old 02-24-2017, 02:26 PM Thread Starter
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If you run that car on the track, I'd be surprised if those tape weights aren't gone after a track day (ask me how I know).
If they were track wheels, i wouldn't go this route, but like I said, these are just my "go get a coffee" street wheels.

Anyway, I did have the wheels balanced with the tape weights in that spot. Test fits were fine, plenty of clearance. Gonna run it like that.

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post #20 of 31 Old 02-25-2017, 12:33 AM
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I tape over mine with aluminum tape, they don't drop off in the paddock anymore LOL
ahhhh....is that the trick to keeping those suckers on !

...I've had so many fall off, I don't even bother balancing my wheels any more
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post #21 of 31 Old 02-25-2017, 07:30 AM
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Heck just a piece of silver duct tape will do the trick plus put the weights inboard as possible as mentioned earlier.

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post #22 of 31 Old 03-03-2017, 12:27 PM Thread Starter
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Ok, wrapped this up to the point where I think its done. Tire installed worked with me to put the weights in a good spot, and I think we got it done. Plenty of clearance. Just need to wait for the salt/sand to get washed off the roads and I can do some test runs and bed in the brakes. Also about to swap in an 03/04 Cobra rack as well.

One thing to note though was that between the Bullitt wheels and these 99/01 Cobra style wheels, the amount of room between caliper/rim did change slightly. I think with the bullitt wheels I'd have a slightly harder time getting tape-weights in.

What can't be done however, is the Cobra 17" spare tire. Doesn't fit over the calipers. The rim contacts the ribs on the topside. So it's a no-go with regards to that.

So hopefully that concludes the thread with regards to the original question I posted above. I'm really happy with the way it turned out. It's a bit more on the show side, but kids take up pretty much all my weekend, so it will be some time before I can get back into AutoXing. I surely miss it.

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post #23 of 31 Old 05-10-2017, 03:25 PM
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was this project mostly cost driven as it seems that the calipers are pretty much identical to the cobras although i've heard that the C5s are stiffer... hoping someone can chime in.

C4 corvette PBR: 38mm pistons (x2)... this is same as the 94-98 cobra PBRs
C5 corvette PBR: 40mm pistons (x2)... this is same as the 99-04 cobra PBRs

99-04 GT PBRs used 44.5mm pistons

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post #24 of 31 Old 05-10-2017, 04:13 PM Thread Starter
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Quote:
Originally Posted by pkstang View Post
was this project mostly cost driven as it seems that the calipers are pretty much identical to the cobras although i've heard that the C5s are stiffer... hoping someone can chime in.

C4 corvette PBR: 38mm pistons (x2)... this is same as the 94-98 cobra PBRs
C5 corvette PBR: 40mm pistons (x2)... this is same as the 99-04 cobra PBRs

99-04 GT PBRs used 44.5mm pistons
Few reasons why I went this route. Some technical. but mostly just to do something different. My original Mach 1 13" setup was pretty beat up from autoXing years ago, and then sitting 10 years. It needed to be refreshed, and I wanted the car to look good. I didn't want used Cobra parts, and NOS bullitt calipers were VERY pricey. I've also always been a sucker for good brakes, and always looking to upgrade even if it was very minimally.

In researching how to do this, I read a number of sources claiming the C5 caliper was stiffer than the C4 caliper, and the C6 caliper even stiffer. Also saw the claim of 30% more pad area, covering more of the rotors surface, and that translating to more even rotor temps due to the pad sweeping the entire face...something I never liked about the cobra setup only touching the outer edge. Also, which might be the biggest thing about them, is that they can accept a 1.25" rotor, while the C4/Cobra caliper can only fit a 1.1" rotor through the channel.

If this was a track car and I didn't care about looks, I would have simply resurfaced the OEM 13" rotors (still plenty of thickness), bought the Baer caliper abutments ($125 each) and then got a set of used 05-06 GTO calipers off ebay for ~$100/pair. I'd probably research a 1.25" rotor for the the setup as well.

But, I also added things like the X-drilled rotors, which I'd never put on a serious track car, and the red Z06 calipers just to give it a bit of visual pop and controversy. I did the rears to match with powdercoated red Cobra calipers. I've put 100 miles on the setup just cruising around. More than enough brake for street use, and I find it hard to actually get them heated up due to the little pedal effort require to actually stop the car from 40MPH. It's also fun when people see it and comment "How did you do that?"

Here's how the car sits today. Wheel weight issue was resolved. No problem there. Car stops well, and combined with the 03-04 Cobra rack upgrade and solid steering shaft, it's VERY fun to drive these days.


BTW....17" Cobra spare tire does NOT clear these brakes.

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post #25 of 31 Old 05-10-2017, 08:18 PM
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i'm confused as to why the need for the baer bracket as i thought i read somewhere that the vette's shared the same 130mm pitch as our cars. either way thanks for sharing the info. pk

for refrence here's an old post about 1.25" rotors
https://forums.corral.net/forums/road...ra-rotors.html

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i'm confused as to why the need for the baer bracket as i thought i read somewhere that the vette's shared the same 130mm pitch as our cars. either way thanks for sharing the info. pk

for refrence here's an old post about 1.25" rotors
https://forums.corral.net/forums/road...ra-rotors.html
It's close, not exact. the bolt spacing is off 1mm, and the vette uses 14mm bolts while the cobra stuff is 12mm. So you need to drill out the spindle slightly.

Standard Vette rotor diameter is 12.75", but the Z51 package got you the 13.4" brakes. These are what you want if trying this adaptation. The Baer brackets I mentioned before are basically z51 abutments, but drilled to proper spacing for the SN95 spindle and 12mm bolts. Since I wasn't 100% sure this would work, I didn't want to drill out my spindles.

I got my hands on a z51 abutment. They are about $50 each. Put one bolt in, and the other was damn close.


Knowing what I know now, you could buy the z51 brackets and just modify your spindles. So that does bring costs down. $50 each for new z51 brackets, and $100/pair for 05-06 GTO calipers used. $200, some pads, resurface rotors and that's fairly competitive with getting Cobra 13" parts.
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post #27 of 31 Old 05-10-2017, 09:13 PM Thread Starter
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I'm actually going to just put together a quick how-to thread on this. Since I've started posting pics of the setup, I've gotten a lot of PMs. Figure a detailed thread would just be easier.
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post #28 of 31 Old 05-15-2017, 12:09 PM
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do you know if the 08-09 G8 GTs had the same caliper and/or spacing?

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post #29 of 31 Old 05-15-2017, 12:19 PM Thread Starter
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do you know if the 08-09 G8 GTs had the same caliper and/or spacing?
They are a similar caliper, but not a bolt on solution. I believe the mounting bracket is pretty far off from bolting up to an SN95 spindle

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post #30 of 31 Old 05-15-2017, 01:03 PM
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I tape over mine with aluminum tape, they don't drop off in the paddock anymore LOL

That moment you realized, where are my tape weights?......

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post #31 of 31 Old 05-15-2017, 03:00 PM Thread Starter
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I made this thread as a sort of how-to

https://forums.corral.net/forums/gene...l#post17904209

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