Cobra/Bullitt Brake Question
 

Stock, were the rotors are thses cars, plain, slotted, or slotted and drilled? Today, someone told me that they were plain, and someone else said they are slotted and drilled.

I'm pretty sure they were plain.

plain as toilet paper at work...

OK. That is what I thought too. I have pretty much decided to buy the Bullitt front brake kit and get new rotors and pads for the rear too. Thing is, do I stay plain-jane OE Bullitt pads, or get some slotted ones? I am not trying to mimick a Bullitt, just looking for some performance with some looks. My rotors and pads are shot anyway on my car.

on the subject, i was lookin on the site...and whats the difference between the new bullit and cobra brake conversions??? do you need the banjo bolts for the bullit conversion?? if not what makes the cobra brakes need em, and the bullit ones dont???

The drilled ones look damn good.

yeah but drilled brakes are stupid and they crack, now answer my question dammit :)

LMAO What if I don't know the answer :surrender

you are of no use, ban yourself!

Bullitts need 'em too. Bullitt calipers are just cobra calipers w/ red powdercoating and a running pony painted (powdercoat too) on them...

so why doesnt the bullit kit come with the banjo bolts?

best to ask the seller...

have any of you actually looked at your brakes... eek!

The banjo bolt doesn't always need to be replaced but it's worth it to do so. It sucks if you break one while tightening. You'll get one with every brake line you buy retail normally. The only part of that whole equation that matters and MUST be replaced for safety is the swage washer (otherwise known as an aluminum or copper crush washer). It's a pretty hearty gasket basically. With hydraulic fittings you want sturdy gaskets like this. Reusing them isn't a good idea.

Every cobra/mach/bullit kit I've seen should be expected to arrive with banjo bolts in the bag with a copper washer.

And I can't find any record of any mustang coming stock with anything but plain rotors. You don't need slots, drilled crack. Plain are just fine.

FWIW, I use Baer Eradispeed 1 piece plain rotors. They're a thick cheek model that sinks heat away from the pads super fast. My tires (275/40/17) limit my braking so I don't need anything more radical.

but are useless, and crack... forget em...

slotted if anything at all

The 10th aniversary cobra calipers requier the banjo bolts because the pistons are bigger in the caliper than the bullitt calipers and the 96-98 cobra calipers. So there springs someone finally answered your question!!

I've had my crossed drilled/slotted rotors on my stang for over a year and a half and they are awsome....:confused:

Ive only heard a few good stories and LOTS of horror stories about drilled

Well like i said, close to 2 yrs with them and not a single problem. I have them all them on all 4's and i did notice an improvement in stopping power. My pad aren't wearing faster, like people state and i put 1.5-3.0 k miles a month on my car. Driven 24/7/365

The difference is that Ford decided to switch the banjo bolt type midway between 2003 in the Cobra calipers. The banjo bolts that come with the lines in the kit will fit the Mach 1/Bullitt calipers fine. That bolt is a fine threaded bolt. The bolt for the 10th Anniversary kit has a coarser thread that is more spread out. In order to get them to work w/ the 03/04 calipers you have to break the crush washers off of the banjo bolt that comes with the lines, and then run the new banjo bolts into the lines for the 03 Cobra calipers.

As far as the rotor question goes, the rotors in the kits are made by Brembo and are plain rotors. However, throughout the Cobra years, the rotors improved. The rotors that come with the kit have better venting than the rotors that came with the SN-95 cars hence better stopping power.

Good info... do you have any specific details on the piston sizes on cobra calipers through the years? It'd be neat to add that bit of info to my book of details.

Every Cobra caliper that I know of has been made by PBR out of Australia. They have all been twin piston, but the piston design changed in 99, and again in early 03. As far as the sizes of the pistons go, I have no clue. I know they just got bigger between 98/99 and 01/03.

The rotors have not always been made by Brembo if I remember correctly. I think they have had two different manufacturers, but I dont remember who the first manufacturer was. Brembo came into play in the 99 Cobra, all SN-95 Cobras had a different manufacturer for their rotors. The Mach 1/Bullitt Calipers are the same as the 99/01 Cobra Calipers as far as the piston design goes.