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Thread: brake caliper question?

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    Lightbulb brake caliper question?

    will any mustang gt or cobra brake calipers from a 94 or newer fit on my 84 cougar without switching to 5 lug rotors and or 5 lug conversion?
    84 el camino ss-daily driver(mild sbc, overdrive trans, posi 3:42 rear.)
    84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
    81 chevy malibu-proturing/ new drag car.( sbc 283 that will rev to the moon, t56 six speed, 4:56 posi rear)

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    Long live the 4-eyes! - '83 Tbird Turbo

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    OK, that answers one question, but let me ask in another way. Wouldn't Lincoln calipers work in his case? I just happened to be looking into brakes for my 87 TC, and as much as I want 13" Cobras, I was wondering if the parts can be found individually, or is everything in the 94-95's specific as a complete unit? IE: I would need a 94-95 rotor with a 94-95 spindle, with a 94-95 caliper? Here's where it gets tricky, I believe the wheel clearance has to be atleast 17" for the 13" rotors, but how much offset can I get away with, or is this the reason everyone here seems to go with the Cobra wheels? I'm thinking of just using some Torq thrust II's, which I guess will dictate if I go with 13" brakes or 11" brakes. I don't think these mentioned wheels would look that good in a 17" height, or if the offset width will cause a fender rub. Thoughts? (sorry for the hijack)

    lastly, anyone know the % braking improvement 13" brakes have over the sn95 brakes as posted below?

    As taken from MJBobbitt website: The '99+ PBR calipers are designed for the 10.8" V6/GT stock rotors. They are a very economical upgrade for the SN95s and I would suggest anyone upgrading to the SN95 spindles and GT rotors to use them instead of the 94-98 cast single piston units. They will not work with the 13" Cobra rotors, only the 10.8" V6/GT rotors! They are lighter (8 lbs) than the '94-98 cast calipers which will reduce unsprung weight, and you get the benefit of the dual piston calipers!
    Last edited by HAVI; 10-07-2008 at 10:01 PM.
    1987 TC project of infinity

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    Quote Originally Posted by HAVI View Post
    OK, that answers one question, but let me ask in another way. Wouldn't Lincoln calipers work in his case? I just happened to be looking into brakes for my 87 TC, and as much as I want 13" Cobras, I was wondering if the parts can be found individually, or is everything in the 94-95's specific as a complete unit? IE: I would need a 94-95 rotor with a 94-95 spindle, with a 94-95 caliper? Here's where it gets tricky, I believe the wheel clearance has to be atleast 17" for the 13" rotors, but how much offset can I get away with, or is this the reason everyone here seems to go with the Cobra wheels? I'm thinking of just using some Torq thrust II's, which I guess will dictate if I go with 13" brakes or 11" brakes. I don't think these mentioned wheels would look that good in a 17" height, or if the offset width will cause a fender rub. Thoughts? (sorry for the hijack)

    lastly, anyone know the % braking improvement 13" brakes have over the sn95 brakes as posted below?


    As taken from MJBobbitt website: The '99+ PBR calipers are designed for the 10.8" V6/GT stock rotors. They are a very economical upgrade for the SN95s and I would suggest anyone upgrading to the SN95 spindles and GT rotors to use them instead of the 94-98 cast single piston units. They will not work with the 13" Cobra rotors, only the 10.8" V6/GT rotors! They are lighter (8 lbs) than the '94-98 cast calipers which will reduce unsprung weight, and you get the benefit of the dual piston calipers!

    Some of those answers are on CoolCats I believe. 13" rotor will need 17" rim I know that for sure
    1986 Cougar LS

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    Quote Originally Posted by HAVI View Post
    Wouldn't Lincoln calipers work in his case?
    Yes, the Mustang SVO / Lincoln 73mm piston caliper would work, and AFAIK is the only upgrade you can do with the stock 4-lug setup using factory supplied parts.

    …how much offset can I get away with, or is this the reason everyone here seems to go with the Cobra wheels? I'm thinking of just using some Torq thrust II's, which I guess will dictate if I go with 13" brakes or 11" brakes. I don't think these mentioned wheels would look that good in a 17" height, or if the offset width will cause a fender rub. Thoughts?
    The ’94-’97 Mustang Cobra 17”x8” wheel fits the front very nicely (look at Chuck's car as an example) and has a 30.9mm offset. The standard off-the-shelf American Racing Torq Thrust II’s have 25mm of offset so that may cause an issue. You can custom order Torq Thrust II’s in their Custom Shop with enough backspacing to tuck them under there but it gets pretty expensive if you go that route.

    If you want the look of that wheel, you might consider a set of Ford Racing M-1007-S178P wheels; they are 17”x 8” with a 30.9mm offset. They were recently discontinued by Ford Racing, but there may still be some left in some warehouses. Otherwise I would think a used set wouldn't be too difficult to find.
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    Quote Originally Posted by BCA View Post
    Yes, the Mustang SVO / Lincoln 73mm piston caliper would work, and AFAIK is the only upgrade you can do with the stock 4-lug setup using factory supplied parts.
    That is only if he has 11" brakes, being either he used 87-88 TC spindles or 87-93 mustang spindles. The 73mm calipers are a downgrade of sorts. I ran them on my TC, and they HURT braking. The bias was terrible.

    For the 10" brakes, you're about SOL.
    It's Gumby's fault.

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    What do you mean by the Bias was terrible?

    Did you not like how much the fronts braked compared to the rear?

    I just did the Lincoln caliper upgrade, and so far so good. It really stops the car quickly in an emergency. I'm dealing with a line ballooning problem right now, causing soft pedal, but the stainless steel braided lines that are going on this weekend should solve that.
    88 TC, Lots of Mods.


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    all i know for rotor size it 256mm i think when i was looking at the parts stores. so if that turns out to be a 10 inch what type of lincoln would have the calipers i need?
    84 el camino ss-daily driver(mild sbc, overdrive trans, posi 3:42 rear.)
    84 mercury cougar v6- was a v6/ nitrous drag car, going back to mostly stock
    81 chevy malibu-proturing/ new drag car.( sbc 283 that will rev to the moon, t56 six speed, 4:56 posi rear)

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    Quote Originally Posted by Birdman View Post
    What do you mean by the Bias was terrible?
    Using the stock prop valve, putting the 73mm calipers puts too much braking force into the front wheels. This will actually reduce your stopping distance even though modulation is increased and fade is decreased due to the larger piston. One must install an aftermarket prop valve to make use of the 73mm calipers.

    73mm calipers have 48% more piston area than 60mm pistons.

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    Quote Originally Posted by blackcougar71 View Post
    all i know for rotor size it 256mm i think when i was looking at the parts stores. so if that turns out to be a 10 inch what type of lincoln would have the calipers i need?
    None.
    It's Gumby's fault.

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