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Which rear brake upgrade would be better performance: Baer or Cobra

  • Thread starter Thread starter spederman
  • Start date Start date Mar 17, 2006
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spederman

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Apr 13, 2005
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#1
  • Mar 17, 2006
  • #1
I am about to order new brakes. I've got the fronts picked out. But want to know which rear kit to go with.

The Baer kit is 13 inch rotors that are slotted and drilled. But not vented, and use the stock calipers.

http://www.stangsuspension.com/store/comersus_viewitem.asp?idproduct=1028

The Cobra rear upgrade kit is 11.65 inch vented discs and uses stock calipers.

http://www.stangsuspension.com/store/comersus_viewitem.asp?idproduct=432

Which kit would give better performance?
 
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46gtsblown

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#2
  • Mar 17, 2006
  • #2
Unless you are open track eventing neither is worth the effort. You will gain little stopping power by upgrading.

Dwayne
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
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#3
  • Mar 17, 2006
  • #3
Both are equally a waste of money, like most brake upgrades...
 

wms004

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Jan 15, 2002
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Mar 17, 2006
#4
  • Mar 17, 2006
  • #4
46gtsblown said:
Unless you are open track eventing neither is worth the effort. You will gain little stopping power by upgrading.

Dwayne
Click to expand...
+1 .. rear only does about 15% of stopping.
 
D

DerekStangGT

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#5
  • Mar 17, 2006
  • #5
Kilgore Trout said:
Both are equally a waste of money, like most brake upgrades...
Click to expand...
Kilgore, this is where we tend to agree to disagree. i stronly believe brake upgrades are helpful. granted, maybe not always worth the money, but they do help. the larger rotor means the caliper doesnt have to grab as hard for the car to be stopped from the same distance. thus less pedal effort is required. the reason is b/c the outward edge of the rotors spin at a different speed than the inner rotor surface. same principal w/ a spinning fan blade. its easier to stop a spinning fan blade from the outside rather than to stick your hand into the inner spinning part of the blades. as the rotor gets larger in circumfrence and diameter, the outward edge is also extended outward. a caliper upgrade is also usually done with the rotors, which means a bigger contact surface, which doesnt need to be elaborated on. as far as upgrading the rears, i tend to agree with everyone else in that you wont be able to reallt tell a difference in performance. most people just upgrade the rears for looks, like im doing. my dinky stock rear look weird when paired with my 13" brembos up front.
 

ponysarepretty

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Mar 17, 2006
#6
  • Mar 17, 2006
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But you people seem to forget, bigger brakes = MORE WEIGHT, and the worst kind of weight, not only is it UNSPRUNG, but its also ROTATIONAL weight.
 
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bdcardinal

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Jun 10, 2003
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Mar 18, 2006
#7
  • Mar 18, 2006
  • #7
for performance, the cobra rears are better. the baer rears are really for show.

and yes, upgrading brakes is a good thing. the stock brakes, even the bullitt brakes suck.
 
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spederman

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Mar 18, 2006
#8
  • Mar 18, 2006
  • #8
bdcardinal said:
for performance, the cobra rears are better. the baer rears are really for show.

and yes, upgrading brakes is a good thing. the stock brakes, even the bullitt brakes suck.
Click to expand...

Just ordered the same setup as you. Should have them Wednesday. Brakes are really important to me. Maybe to some, that have probably never driven a car with REAL brakes,they just dont know what they are missing. Once you have had a nice setup, its hard to go back to the stock absolute death trap brakes. My last car had an amazing setup of Brembo brakes on all 4 tires, I just cant get used to this suck sub par brake setup.

bdcardinal, how do you like your setup?
 
B

bdcardinal

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#9
  • Mar 18, 2006
  • #9
i love it. the rotors rust up really easy, but actually grab harder with the rust on them. there is a ton of dust, which is expected out of brembo brakes. i need to take a day and pull the tires off and clean the front calipers. they got covered in dust, then i drove them really hard, almost to the point of brake fade, and the dust got baked on.

when i ordered the brakes, i called up Summit and got Speed Bleeders for the fronts. it makes bleeding the brakes a TON easier.
 
D

DerekStangGT

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Feb 18, 2003
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#10
  • Mar 18, 2006
  • #10
ponysarepretty said:
But you people seem to forget, bigger brakes = MORE WEIGHT, and the worst kind of weight, not only is it UNSPRUNG, but its also ROTATIONAL weight.
Click to expand...
more weight? what, like 2.5 lbs at each corner? 10lbs total? if everyone were so concerned about weight, no one would upgrade to 18" wheels, they would downgrade to some lightweight 16" alloys and 255s all around. i think with brakes, people are least concerned with weight. performance and looks play a greater part than weight, at least for me.
 

Mustang5L5

That is…until I whipped out my Bissell
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#11
  • Mar 18, 2006
  • #11
ponysarepretty said:
But you people seem to forget, bigger brakes = MORE WEIGHT, and the worst kind of weight, not only is it UNSPRUNG, but its also ROTATIONAL weight.
Click to expand...

So what?

The way i drive, i need bigger brakes. I fade the stock GT brakes all the time when i drive "spirited".

For the rear Brakes, the Cobra brakes are more performance orientated while Baer is strictly for show to fill up some nice 18" wheels.
 
K

Kilgore Trout

Fried or Broiled ?
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#12
  • Mar 18, 2006
  • #12
I have never experienced brake fade and I drive it like I stole it, always.
 
D

DerekStangGT

My package is in the mail!
Feb 18, 2003
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Mar 18, 2006
#13
  • Mar 18, 2006
  • #13
Kilgore Trout said:
I have never experienced brake fade and I drive it like I stole it, always.
Click to expand...
then maybe you dont know what brake fade is or how to feel it. not to be a jackass or anything, cuz i got mad respect for you homie, but i felt my stockers fade everyday on my way to class last year. all it took was 3 minutes of aggressive driving and heavy braking. by then end of the 2 mile stretch i was downright scared of my brakes. now i can take that same stretch all day w/ not even a fraction of the fade. the 13" setup actually brakes better when warmed up. i dont know man, maybe both our ideas of aggressive driving are different, but personally, i NEEDED better brakes up frront and my 13" Brembos, Cobra calipers, and Hawk pads delivered fo sho.
 
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bdcardinal

tree hugger
Jun 10, 2003
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Mar 18, 2006
#14
  • Mar 18, 2006
  • #14
ya, you dont drive it hard enough. i got brake fade on my stockers all teh time. ive even pushed my current setup to brake fade, basically it took 15 hard laps at Buttonwillow outbraking 04 cobras.
 

bemol

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Mar 19, 2006
#15
  • Mar 19, 2006
  • #15
99-04 GT OEM brakes fade easily, although most of the fault are the OEM pads, since changin to PFC Z pads and now Carbotech bobcats, I forgot how fade feels Rear cobra brakes will not feel that different, but if you roadrace they will help your rear pads last longer..

http://www.modulardepot.com/?show=articlesdet&aid=54

Cheers
Dan
 

Grits

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#16
  • Mar 19, 2006
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ive been happy with my front upgrade's... but im going with the cobra rears as well..
 
B

bdcardinal

tree hugger
Jun 10, 2003
3,612
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Mar 19, 2006
#17
  • Mar 19, 2006
  • #17
i wish i hadve taken pics of my install. ill wait till one of my friends does it then ill do it for them with pics for you all.
 
K

Kilgore Trout

Fried or Broiled ?
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#18
  • Mar 19, 2006
  • #18
bdcardinal said:
ya, you dont drive it hard enough. i got brake fade on my stockers all teh time. ive even pushed my current setup to brake fade, basically it took 15 hard laps at Buttonwillow outbraking 04 cobras.
Click to expand...
I guess I do not drive it hard enough to get the fade.
 
J

JOHNS01GT

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Mar 19, 2006
#19
  • Mar 19, 2006
  • #19
My brake set-up works fine with stock rotors, hawk pads, and stainless lines. I have a 5 speed so slowing down and stopping are not an issue if you downshift while braking. My driving style is pretty aggressive too. Personally I would leave the big brake kits for people with big power, people with blowers.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,255
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Massachusetts
Mar 19, 2006
#20
  • Mar 19, 2006
  • #20
JOHNS01GT said:
I would leave the big brake kits for people with big power, people with blowers.
Click to expand...

Why not? Anything that helps you stop better might save your car from damage one day.

The difference between a Cobra/Mach1/Bullitts brakes vs a Gt/V6 is pretty significant if you have ever had the chance to drive them. The rear Cobra rotors are vented so it helps with cooling and preventing fade.


GT on top, Cobra on bottom
 
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