AE86 Rear Brake Upgrade - Caliper & Discs?

[Conrad]

I'm just in the process of speaking with a manufacturuer about getting a rear upgrade caliper and disc setup for the AE86.

I need to put some measurements of the existing set-up onto some forms but I dont have access to my car (its at the fabricators).

Would someone be willing to take some measurements off there car and fill in the forms if I mail them to you.

Cheers

Conrad

[speed-inc]

If you do not have a hurry and I do not have to take apart the whole rear brakes then send it to me.

As a side note:
There are existing brake options for the rear already.
RX7 fc3s rear brakes
R32 GTR rear brakes

Cheers

[aussiefan]

hey tobias
do you have some more infos about the rear brake options?

[4agze]

dont forget about the nissan primera rear caliper

[F0Bman]

Guys in Japan use the S13 rear brakes. I have heard of people using the Cressida/Chaser rear brakes as well.

[jamiemirror]

Already discussed, VW calipers + Nissan discs= 257mm rear (almost bolt-on) upgrade for cheap !

[speed-inc]

The R32 kit comes from a Type M not GTR, sorry.

Diameter of discs is 257mm, 2 pot.
Kit comes complete with calipers, discs, pads, brackets, bolts.
I have one picture but I am unable to post it.

The fc3s kit comes only discs, brackets and bolts.
Has 258mm diameter.

So you have to get some calipers and pads yourself. I can also supply these of course.

[Conrad]

Just to be clear, this will be modern design new calipers and discs, not calipers from old RX7's and Skylines. The kit when finished will be complete. Discs, Calipers, Brackets, Lines & pads.

The kit will also match the 6 pot 286mm (on 15" wheels) kit they have for the front of the car currently.

Conrad

These are the two forms I need filling in with accurate measurements.

[assassin10000]

Your in luck, I just took a bunch of different measurements of my rotors (Granted, they are aftermarket rotors. But they should be the same.)

Not measured: A, B, C, D, DD | G, H, I, J, K | O
Not listed on form: P, Q, W, X, Y, Z

E. Axle flange outside diameter:
139.0mm

F. Axle flange/hub center size
60mm
__________________________________

L. Brake rotor stud hole
14.65mm

M. Brake caliper bracket hole
10.15mm

N. PCD / bolt pattern
4x114.3mm / 4x4.5"
__________________________________

R. Same as 'E'

S. Brake caliper/bracket position.
S1

T. Brake Rotor/Hat overall height:
48mm

U. Rotor/Hat inner diameter:
139.7mm

V. Rotor/Hat Inside depth (calculated on 2 measurements above)
42.75mm

Check mark at bottom - Caliper is positioned 'Leading' of the rear axle.
__________________________________

Misc:
Brake pad contact surface/height (measured actual contact patch width on rotor):
30mm

Rotor Hat thickness @ axle flange:
5.25mm

Rotor/Hat outside diameter:
159mm

Rotor outside diameter:
231mm

Rotor thickness.
10.1-10.2mm
__________________________________

Quick tip: Rear rotors from a MA45/46/47 are a direct and almost identical swap to the AE86 rotors. But they are just over 1" in diameter bigger.
AE86 = 9 3/32" (231mm) - approx
MA45/MA46/MA47 = 10 5/32" (258mm) - approx

Andrew

[seb]

I prepare a kit of front conversion with discs of 276 mm and caliper Brembo 4 pistons.
The assembly will be Bolt on.

The discs are put at the place of the origin.
If you interested are contacted me