New 94-04 spindle brake option

lowranger96

Active Member
Established Member
Joined
Jan 13, 2009
Messages
207
Location
Avon, IN
what is the best way to press out the Caddy inserts and press in the new ones???

I used a 14mm Bolt that fit the caddy insert, supported the ear of the caliper and smacked it out with a hammer


Sent from my iPhone using Tapatalk
 

Mustang5L5

Well-Known Member
Established Member
Joined
Jan 8, 2006
Messages
602
Location
Boston, MA
I used a 14mm Bolt that fit the caddy insert, supported the ear of the caliper and smacked it out with a hammer


Sent from my iPhone using Tapatalk

That's exactly how I removed mine as well. They really aren't being held in there too tightly. I held the caliper in my hand and hit the bolt with a hammer. A couple hits and it was out.

I did press the first one out, but once I realized how little effort it took, I did the remaining 3 with the bolt and a hammer method.
 

KBR

Active Member
Established Member
Joined
May 20, 2017
Messages
296
Location
Assonet, MA
Thanks guys...I wanted to do the insert before painting the caliper


Sent from my iPhone using svtperformance.com
 

lowranger96

Active Member
Established Member
Joined
Jan 13, 2009
Messages
207
Location
Avon, IN
Thanks guys...I wanted to do the insert before painting the caliper


Sent from my iPhone using svtperformance.com

The inserts will be yellow zinc which takes paint much better then silver zinc. Just fun fact


Sent from my iPhone using Tapatalk
 

keith89

Well-Known Member
Established Member
Joined
Mar 29, 2007
Messages
1,479
Location
Easton, PA
Anyone know if these will clear Mach 1 wheels? Also, are you painting or powder coating the calipers? if powder coat, are you disassembling the calipers(ie removing pistons and seals)?
 

Blkkbgt

Well-Known Member
Established Member
Premium Member
Joined
Feb 3, 2011
Messages
3,078
Location
The land of commies and socialists!
@lowranger96
@Mustang5L5

Have either of you looked into the brake bias issue caused by the larger pistons of these calipers?

I used a calculator and found that these increase the bias to around 85/15 front and rear. As you probably both know Mustangs usually have a 70/30 bias.

I am thinking the only way to fix this is either to find a better setup in the rear, or running a bias adjuster for the rear brakes after disabling the stock proportioning valve.

Thoughts?
 

lowranger96

Active Member
Established Member
Joined
Jan 13, 2009
Messages
207
Location
Avon, IN
What rear brakes did you use in your calculator. The vehicle I’ve tested on is a cobra which has larger rear brakes. The feel of the pants is fine with all factory 98 cobra stuff and the ats brakes on the front. This setup is almost identical to cobra R


Sent from my iPhone using Tapatalk
 

Mustang5L5

Well-Known Member
Established Member
Joined
Jan 8, 2006
Messages
602
Location
Boston, MA
I ran the numbers with cobra rear disks and found it very similar to the 00R.

The 00R is 72/28 according to MAx motorsports. I got 74/26 but my numbers could certainly be wrong.

Same rotor diameter, similar pad shape. 00r is 36/40mm pistons and ATS is 42/42 so there is a little additional clamping force.

I have cobra brakes on a fox, so I already have the adjustable prop valve to dial in more rear braking force. ABS should also in theory help control rear lockup along with the wider rear tires everyone seems to run as well
 

Blkkbgt

Well-Known Member
Established Member
Premium Member
Joined
Feb 3, 2011
Messages
3,078
Location
The land of commies and socialists!
I used the calculator from TCE. I know its generic but when I plugged the stock cobra stuff in I ended up with very close to the 72/28 mustang5l5 posted.

From there I just plugged in the ATS caliper piston sizes and came out with 85/15 rounding up .001. I went with it because it was so close to begin with.
 

SilverGT1

Active Member
Established Member
Joined
Jul 13, 2017
Messages
229
Location
Cameron Park, CA
If you really want to drill down, there are lots of calculators on line that will take a lot more variables into consideration than the TCE model (i.e., tire size, F/R weight, Cg, etc, etc.).
 

Blkkbgt

Well-Known Member
Established Member
Premium Member
Joined
Feb 3, 2011
Messages
3,078
Location
The land of commies and socialists!
Here is a side by side of the stock cobra setup with 40.5 mm calipers vs the ATS 42 mm. Notice how the cobra setup is extremely close to the 72/28 mustang5l5 posted.


Stock.png
ATS.png
 

Mustang5L5

Well-Known Member
Established Member
Joined
Jan 8, 2006
Messages
602
Location
Boston, MA
Haven’t had a chance to redo my calc but that makes me rethink things. I may have to upgrade my rear brakes now.
 

Blkkbgt

Well-Known Member
Established Member
Premium Member
Joined
Feb 3, 2011
Messages
3,078
Location
The land of commies and socialists!
Haven’t had a chance to redo my calc but that makes me rethink things. I may have to upgrade my rear brakes now.

You don't think your bias adjuster will be able to dial in enough rear bias to compensate?

additionally I think I have mixed up some numbers here. You stated that the 00R kit had a 72/28 ratio. I got those numbers with stock cobra 2 piston calipers. When I plug in the 00R kit I end up at 82/18. I also searched MM's site and cannot find anything stating that the 00R bias ratio is 72/28 nor anywhere else on the net. I am not saying you're wrong I just simply cant confirm it. If that is indeed the bias ratio then what I got using that calculator is off. I honestly hope I am wrong on this one.
 

Users who are viewing this thread



Top