Brake upgrade for AE92 fxgt

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Brake upgrade for AE92 fxgt

Postby fuzzilogyc » Tue Jan 09, 2007 11:54 am

Hey guys, i've got a facelift ae92 and am looking to do a brake upgrade.
I've read that you can get front calipers off a superstrut ae101 and machine the back of it off a little and then they'll bolt straight on - is this right?

Also, is getting single piston calipers off a non-superstrut ae101 worth it or is it going to give me no extra stopping power?

Also, will i need to upgrade rears as well to maintain better balance as i heard ae92s don't brake enough in the rear... (maybe this is a myth?)

Or, should i just not bother and just get new rotors and pads up front (they're fuct)? If this is the case, should i get slotteds?

Any help or suggestions would be appreciated. (thanks for putting up with my huge ramble lol)
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Postby soopachargen » Tue Jan 09, 2007 11:58 am

if they are fugged replace the pads, discs and fluid before going over the top...
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Postby fuzzilogyc » Tue Jan 09, 2007 12:02 pm

yeah but if i'm going to be replacing rotors and pads anyway, i thought i might as well do it all in one go....

(and what - theres such thing as going over the top...? :P)
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Postby soopachargen » Tue Jan 09, 2007 12:05 pm

When in doubt, down and out.

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Postby Leon » Tue Jan 09, 2007 12:07 pm

I raced for 3 years in an AE92 just replaced all linings with Mintex 1166 compound, better brake fluid, and brand new (standard) discs.

Never even got the brakes hot enough to fade, and believe me, I tried pretty hard.
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Postby fuzzilogyc » Tue Jan 09, 2007 12:09 pm

what kind of brake fluid did you use?
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Postby Cahuna » Tue Jan 09, 2007 12:12 pm

Similar vein to Leon, my AE92 rally car did the Far North Rally last year on standard disks/callipers running old Metal King pads and Castrol dot4 (or it might have been dot4+) brake fluid, never had a hint of brake fade and the car stops on a dime. This was on stages including a 37km adventure and a couple of 20km stages that were lock-to-lock up and down hill with almost constant left-foot braking.
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Postby fuzzilogyc » Tue Jan 09, 2007 12:15 pm

ok, so fade is not an issue... what about braking performance? stops hard and fast?

just read "car stops on a dime" lol
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Postby Cahuna » Tue Jan 09, 2007 12:20 pm

Subjectively it feels like it stops a lot better than my Sentra daily driver (even though the Sentra has ABS) but I haven't compared the two side-by-side. And in the Corolla the limiting factor is always the tyres as I've never drive it on standard road tyres. But it has always stopped as hard and fast as I've ever wanted it to, even while racing.
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Postby IH8TEC » Tue Jan 09, 2007 12:21 pm

i've just upgraded all my brakes on my 88 gtz, my front rotors were heatspotted all round and cracked, the pads were completely gone, brake fluid had been stuffed, really spoungy pedal. rear discs were a bit heatspotted but not really.

so what did i do,

std size brembo front rotors (couldn't get slotted in time i needed them due to xmas etc) go to BNT and they are cheaper than genuine

new rear rotors, brand was rda or something, didn't care, it's jsut a solid rotor.

metal king pads up front, although will be taking my old backing plates in to get the same material as leon said, mintex m1166 put on them.

std rear pads, i've been through 2 and a bit sets of good front pads in the time the same set of genuine rear pads have hardly been touched, (so why upgrade them when they do sweet f all)

and i bled all the old brake fluid out with dot 5.1 brake fluid.

once they were bedded in, i did a testing session 8) i haven't had brakes this good on sooooooo long :lol:

and in the near future, i will be running ducting to all of them as well as a precaution,
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Postby fuzzilogyc » Tue Jan 09, 2007 12:25 pm

yeah looks like i'm gonna get some new pads (maybe bendex ultimate if they make it for this car?) and some new rotors - possibly slotted if they aren't too much more expensive than standards.
how much for the m1166 compound? you need the original pads to put that stuff on right?
maybe bleed the brake fluid out too - but i think that was already done not that long ago...
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Postby IH8TEC » Tue Jan 09, 2007 12:27 pm

fuzzilogyc wrote:yeah looks like i'm gonna get some new pads (maybe bendex ultimate if they make it for this car?) and some new rotors - possibly slotted if they aren't too much more expensive than standards.
how much for the m1166 compound? you need the original pads to put that stuff on right?
maybe bleed the brake fluid out too - but i think that was already done not that long ago...


i was told by BNT $150 + gst for the material, they send it away somewhere, possibly racebrakes. but i might call them and go direct.

as for the fluid, for the sake of $30 would it hurt to change it again and know what you have in there is good?
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Postby Leon » Tue Jan 09, 2007 1:01 pm

fuzzilogyc wrote:yeah looks like i'm gonna get some new pads (maybe bendex ultimate if they make it for this car?) and some new rotors - possibly slotted if they aren't too much more expensive than standards.
how much for the m1166 compound? you need the original pads to put that stuff on right?
maybe bleed the brake fluid out too - but i think that was already done not that long ago...


Was about the $200 mark for the pads as I recall. If you don't have the existing backing plates, they just charge you a bit more. It's no major.

Standard rotors for me were 1/3 the price of slotted rotors, so I just used new standard ones, and replaced them when they started getting a shimmy after quite a few events.

Brake fluid is crucial. You can get the Mintex pads insanely hot (we're talking smoke pouring out the front wheels, discs glowing red), and they'll keep working like a champion. However if your fluid has any water in it, the water will boil, and you've got no brakes at all. Exciting, but not a great plan. Wander into BNT or call 0800 Racebrakes and see what they recommend.

The Mintex 1166 is a very grubby compound, so you'll ALWAYS have black wheels, and it is very hard on rotors, so don't expect much life out of the rotors. Maybe a year in club racing use, and probably 50,000km of strictly road use before you replace the fronts. Also they tend to be a bit noisy.

Will stand the car on its nose from stone cold. The g/f runs them in the front of her automatic Pulsar road car as well.
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Postby fuzzilogyc » Tue Jan 09, 2007 1:27 pm

yeah maybe too much for my application then...
i don't intend on constantly hitting the track... so yeah...
anyone heard anything about the bendex ultimates or maybe EBC?
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Postby pc » Tue Jan 09, 2007 3:45 pm

Can't go wrong with those pads. bendix heavy duty are also good, and bendix advance would probably be good enough.
I reckon if you're not going to the track with slicks then calipers/rotors don't need upgrading. Good pads with fresh fluid and newish disks is all you will ever need.
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Postby postfach » Tue Jan 09, 2007 4:19 pm

fuzzilogyc wrote:anyone heard anything about the bendex ultimates or maybe EBC?


I've got the pads a step below the ultimates, and they're pretty damn good, so I could only assume the ultimates will be better. I've pushed them really hard on some really windy roads and never had any trouble stopping.
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Postby flygt4 » Tue Jan 09, 2007 4:22 pm

i used EBC red stuff's, found them very soft when not up to temperature and also very abrasive on the discs. track performance was awesome but made discs somewhat of a disposable item.

am converting to previously said mintex combination, and am happy with performance of standard non-SS ae101 rotors.
you're just going to wear the rotors out anyway if you put good pads on, so dont get too carried away buying slotted items.


oh and as leon stated, brake fluid is crucial :lol: i found this out at ~180km on the front straight of manfield , its not a nice feeling.
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Postby Santa'sBoostinSleigh » Wed Jan 10, 2007 10:52 pm

if youre just using it for the road go for some good pads and good fluid
EBC green seems to be popular - never tried them myself

i run fresh standard ripco fluid, mintex 1166 pads in the front of my ae92 racecar, coupled with twinpot calipers on standard ae92 rotors.
the first stop or two is a bit slow, but after that its primo
standard rears (swapped from an ae111 rear)
i had no fade at my last manfield trackday

fcuking with your brakes is a cert issue however, and rightly so, stop, or dont stop

just got some front TRD pads for my GT-T, so we'll see what they perform like in the coming weeks. talk to Revvy for a price
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Postby Leon » Thu Jan 11, 2007 8:46 am

The g/f's car runs Mintex 1166 and will stand on it's nose from your first brake application of the day until you run out of petrol. Mind you it is a later model Pulsar with ABS so probably has brake booster out the wazoo.

My AE92 stood on it's nose from stone cold with Mintex 1166.

I haven't heard good things about the EBC brakes from people who do track work in general. Obviously everyone has a different story.
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