Brake upgrades

hotstang

Founding Member
May 18, 1999
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I know this may have been done to death but I hate my stock brakes. what kind of a gain will I get on my 99GT with the Cobra 13" kit and some good pads on the front? how much will rears actually help?

thanks
 
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I don't think you get any gains on stopping distance (maybe a few feet) with the Cobra kit, but what you get is less fade. Therefore, after several stops within a short time span (for example autocrossing) the brakes will stop the same whereas the stock GT brakes will be glowing red and won't work for $hit.
 
so what do you recomend for pads on the cobra kit taht may help a little more with fade and stopping distance. I am thinking slotted rotors and skipping the cross drill because I have heard things about the rotors cracking more
 
the rear is only 30% of you braking so not much to upgrade there. the cobra kit is not much of a calipure upgrade. I would try diffenent pads and maybe stainless lines unless you have deep pockets. if you have $2500-3k to drop you can get the baer or roush alcon setup. they are awesome but $$$$$. if you look at you stock brakes they are pretty nice calipures. dual piston pbr. that is the same thing that the cobra, saleen, roush use. they just have a 13inch rottor which does not do much for your one stop distance.

I have seen baer do a test that brought downs a car 60-0 in about 98 feet. the did the roush setup on horsepower tv with about the same results.
 
I would look for something a little nicer than the cobra kit if you really hit the track. I would call up baer and see what they say. I think brembo has a front kit for aound 1k that might be somewhere in between the cobra and the alcon setups.
 
hotstang said:
so what do you recomend for pads on the cobra kit taht may help a little more with fade and stopping distance. I am thinking slotted rotors and skipping the cross drill because I have heard things about the rotors cracking more


I've had my cross drilled rotors for a while now. Never had any problems with them. The slotted rotors I don't like because every time you press on the brakes the top of the pad is sheered off which leads to less brake pad life.
 
Sleepy1 said:
I don't think you get any gains on stopping distance (maybe a few feet) with the Cobra kit, but what you get is less fade. Therefore, after several stops within a short time span (for example autocrossing) the brakes will stop the same whereas the stock GT brakes will be glowing red and won't work for $hit.
I don't remember the exact feet, but i saw a test where the braking distance was fairly significantly improved. The clamping angle is what gives it the extra punch going from 11-13" rotors
 
wms004 said:
I don't remember the exact feet, but i saw a test where the braking distance was fairly significantly improved. The clamping angle is what gives it the extra punch going from 11-13" rotors


I have been having a hard time finding any good data on this. the tests vary so much. in the artical I posted about they had cobra brakes on that car and its 60-0 was 140ft which is supposedly worse than a stock gt. they may have had 18" wheels which can hurt braking though.
 
wms004 said:
I don't remember the exact feet, but i saw a test where the braking distance was fairly significantly improved. The clamping angle is what gives it the extra punch going from 11-13" rotors

Is the mach 1 kit the same exact setup or is there a difference? Also, are they about the same price?

kirkyg
 
kirky: if you need something to reduce fade, I'd suggest the Brembo drilled rotors with Ferrodo pads. Ferrodo is a name I've seen pop up a lot on the Ferrari boards. Its also what comes with the big brake kits.

Another option I havent seen anybody mention (although there was a link to their site) is the StopTech kits. Cheaper than both Brembo and Baer's 13" 2piece rotor kit at just under $2000, they have a stiffer caliper and also patented bridge design and a little lighter weight. All in all, I've seen more people switching to this.

I was going to go wtih the Brembo kit, but decided to save and go with the StopTech kit. In the meantime, I'm getting what I suggested for kirky, the Brembo rotors and Ferrodo pads.

Gagan