I have a sn-95 rear that came with mustang svo rear brakes? Is there any advantages to running these instead of regular sn-95 brakes? Here is a pic of the svo brakes.
There are a couple of "problems" with the SVO or Mark VII brakes. One is if they have stock brackets, then the axles are 1.25" longer than Fox cars and they push the wheels out to the very edge of the fender. 17x8 will fit, but just barely. You would most likely have to roll the fenders and you will still have some rubbing of the tires. Second, they have a really large caliper (54MM?) and unless you match them with the 73MM front brakes, you will have to cut the rear pressure to the least possible with an adjustable proportioning valve or possibly experience lockup and have the rear swing around in the wet. I know from personal experience on this. Another drawback is they are not painted or aluminum calipers, and will rust up or look "bad" if not painted or at least clear coated (what I did on mine after sandblasting).
The pros - they are vented rotors and are just a tad bit smaller than Cobra rear brakes and better than the 10" solid rotors in the base and GT models. You can modify the brackets to use Fox length Ranger axles and keep the wheels under the fenders, a requirement for 17x9" Ford wheels. See: http://home.pacbell.net/black306/tech/reardisc.html . Plus you already have them, saving you some $$ buying Mustang brakes.
There are a couple of "problems" with the SVO or Mark VII brakes. One is if they have stock brackets, then the axles are 1.25" longer than Fox cars and they push the wheels out to the very edge of the fender. 17x8 will fit, but just barely. You would most likely have to roll the fenders and you will still have some rubbing of the tires. Second, they have a really large caliper (54MM?) and unless you match them with the 73MM front brakes, you will have to cut the rear pressure to the least possible with an adjustable proportioning valve or possibly experience lockup and have the rear swing around in the wet. I know from personal experience on this. Another drawback is they are not painted or aluminum calipers, and will rust up or look "bad" if not painted or at least clear coated (what I did on mine after sandblasting).
The pros - they are vented rotors and are just a tad bit smaller than Cobra rear brakes and better than the 10" solid rotors in the base and GT models. You can modify the brackets to use Fox length Ranger axles and keep the wheels under the fenders, a requirement for 17x9" Ford wheels. See: http://home.pacbell.net/black306/tech/reardisc.html . Plus you already have them, saving you some $$ buying Mustang brakes.
Pretty much covered it. I'd say they are on par with or even better than Cobra rear disks. They diameter is slightly smaller (11.35" vs 11.65") but the calipers are huge (54mm vs 38mm) so i think you get some serious clamping power from them. The pads are even twice the size of SN95 pads. You might want to run some wide rubber out back or even some heavier rims as you may have probs with lockup even with the pressure turned way down with a prop valve.
The offset can be modified to Fox offset using ranger axles and flipping the brackets like in the above write up. This will allow you to run some 17x9 wheels out back with some wide rubber...which is important for preventing lock-up
Calipers are heavy though since they are cast iron. Then again SN95 calipers are also iron, but are no where as bulky.
Rotors are thick...even thicker than Cobra rotors. Fade should be a non-issue.
Downside is replacement parts are a little expensive.