Brakes swap

[potge]

Hello. I am for a bolt on upgrade for my front brakes. I currenlty have the oem ep91 na setup (238*18 in front with no abs, and rear drums) and the car is na also. However, though i dont feel the need for more stopping power i have some issues with endurance, especially on downhills and track. So apart from brake pads with some ds2500 scheduled (long time postponed ), i am thinking into moving on bigger and most imortant thicker disks. But there is a limitation they must fit under 14s rims so around 260mm max(not to mention unsprung weight etc). After a digging i run into corolla ae101 and 111 (if not mistaken callipers) which use 255*22 disks, have a slightly bigger piston and is a bolt on swap. I have also heard of carina disks 260*25 which sound ideal to me but dont know what is need caliper wise. So any comments on these or any new proposals (such as celica avensis that i have heard but not seen in action) would be really helpful. thanks again
I must mention that cause i have no abs brake modulation is very important factor.

[jezza323]

i just upgraded my EP91 to EP82/Glanza V brakes at the front and rear, it was the easiest cheapest upgrade i could do and has worked great. never overheated my brakes, even on the race track in 37 degree celcius heat, with semi slicks

make sure you use good pads at the front (DS2500's) and good quality fluid. i am using Motul RBF600.

Hope this helps

[potge]

aaaa grr my bad i should have mentioned it. I have recently flushed rbf600. As i mentioned ds2500 are on their way i just seek for something that would be able to handle a little more heat thats why i basically search of thicker and not bigger disks.

[jezza323]

i think if you were to try the EP82/Glanza V brakes with the good pads (just stock rear pads btw) you would be very hard pressed to run out of brakes

[ivan]

Well jezza you have been to quite a few more events/tracks than i have, but in the little times i went to i lost my brakes from overheating, and i was using Glanza disks/rotors. Most people will find it more than sufficient but i didnt. In saying that i didnt have the best pads around.

I still wanted to upgrade my brakes because i wanted to be assured that they were big enough for heat absorbtion necessary to still perform well. My requriements were 15" rims so the brakes i went for were Celica brakes with 280x28mm disks. I wasnt too fussed when it comes to callipers because of the leightweight car.
Although i havnt actually used the brakes yet, i will in about a month or so. It wasnt the easist brake config to get working either. I had to make a spacer for the disks to sit out by 3mm, get longer studs for peice of mind and redrill disks to 4stud (celica disks and callipers - 5stud).

If i were you, i would go with the glanza brakes because your pads will work with them. Mind you so will the ae101 disks/callipers howerver they are not always bolt-on (depending on what model you get).

Ivan

[jezza323]

for an n/a car they are more than enough. for a 140hp+ turbo car....probably not

i intend on upgrading to 2 piece rotors & 4 spots front, and 2 piece & single spot rear, all aftermarket items eventually (when i need more brakes....and have won lotto for example)

[potge]

Interesting points guys. I partially agree with both. First of all definitely a glanza setup (front and rear) with good brake fluid and a decent at least pad will be enough for spirited driving. Though, on a close track or downhill depending on other factors (such as rims=air articulation) might fade. With good pads ds2500 ds3000 hawk blue etc you improve or eradicate fade however the problem will heat will still exists plus these pads are more or less disk consuming (pesronally i can leave with). It will work perfectly since these pads are designed to work in higher temps but still i think that the real problem underlies (personal point of view). Some might say that you can use air ducts (especially when you have no fog lights on glanza bumper ) and improve thinks dramatically which is something i think of. Anyway its very interesting field of upgrade. I think i will start with ds2500 first on n/a setup test it (hopefully with a performance box also) and then move on another setup slightly bigger.
And since you mentioned it do you believe that our cars even with 140+ bhp need something more than 2piston and around 280mm at 25-28mm thickness? i dont think so, to me it would lead to more flat tires from constant locking but its a bit offtopic and theoretically,thus if you feel so delete this part of the post

[jezza323]

i meant that the glanza/GT starlet upgrade would be fine for most cars, i think 280x25mm with 2 pots at the front would be plenty -too much- for any starlet (remember they only weigh 800 odd kg's)

my rotor wear is not noticable (no lip on the edge of the rotor) after about 10 track days and lots of spirited driving with my setup (GT brakes/DS2500's) - probably about 8000 kms since i installed them

when i go to the track, the rotors turn blue from the heat, but i still havent got them to fade, i personally feel a decent pads/fluid combo is very under-rated. when i need to (when i have more power) i will be adding some air ducting to mine as you mentioned before i bother trying to upgrade. i will also try some braided lines when i have time and money to get them and install them.