The AW11 Brake Upgrade Thread

[dizzy]

Just a small qtn
Upgrading 87 model NA brakes to later model SC brakes which Ive sourced for cheap.


I have next to no knowledge about braking systems

Is there anything I really need to know?

Would I need to upgrade my brake master cylinder?

Thanks!

[Duk]

Would I need to upgrade my brake master cylinder?

I still use my standard MC with my ST185 GT4 front brakes.

[MR22ZZ]

Just a small qtn
Upgrading 87 model NA brakes to later model SC brakes which Ive sourced for cheap.

ummm, aren't they the same?

if your 87 has the upgraded brakes, then they are the same as the S/C ones I thought. If your car is an Aus delivered car then it's definitely already got those brakes already.

[TooF]

they are the same no difference between 86.9+ NA and SC brakes.. none at all.

[dizzy]

Thanks for info!

To be specific, Its an import NOV 86 model that I have.

My situation is that my rear discs seem to be damaged and Ive been offered a set of front and rear discs and calipers that came off an SC for 200 dollars and I thought it may need some other modificatoins to make it fit/work.And the discs on the set I'll be buying are abit larger in diametre?

Will double check and compare on the weekend, otherwise, ill just get the rears replaced.

Thanks

[Harreh]

Holy thread revival batman!

Well from what I can tell DBA arent doing the brakes anymore, atleast not slotted.

Cars got slotted on them already and I know I don't really need slotted but I'd like to keep them that way, so has anyone got some part numbers? I'd like to increase the disc diameter if possible. To my understanding RDA are still selling them

[TooF]

ive got a set of AE101 twin piston calipers with 265mm rotors all direct bolt onto an aw11 spare her i want to get rid of

[thegreatestben]

This thread has been real helpful doing the upgrades on my AW11,
I thought I'd post up what I went with.

Front:
Celica ST185 Single piston calipers
Celica ST185 Single piston Rotors redrilled to 4x100

Rear:
SW20 Late Model Calipers (22V)
AW11 Front Rotors With 6mm spacers

Master cylinder is a 1" unit from a Hilux. Part Number 32986545

Pics:

[MR22ZZ]

I cbf doing the measuring... can you tell me what to OD is on the spacers to fit inside the rotor like that?

Cheers

[thegreatestben]

130mm, there's a raised edge inside the factory rotor so need to chamfer the edge.

[Just1n_mc]

130mm, there's a raised edge inside the factory rotor so need to chamfer the edge.

Don't fancy making up a couple of more sets by chance? I'm sure some of us to lazy to make them ourselves would buy them off you for the rear upgrade.

[thegreatestben]

I have been asked If I can make some others but with the type of tools I have at my disposal it's not really worth it, I made them in the garage, each piece takes an hour to cut then an hour or two to machine cos we've only got a basic lathe up and running at the moment.

[senn]

These "spacers" you guys are talking about, are these like the wheel spacers (that are illegal) or is this a bracket spacer? surely if its a hub kinda spacer the extra force the extenstion generates could damage the hubs/bearings etc?

[thegreatestben]

They go between the hub and the disk, mine are hub centric and the disk is still located as well.
Unsure to the legality where you are, but here in NZ they are legal but would require cert, (but I don't think anyones gonna see them on my car )

[MR22ZZ]

It sits behind the rotor rather than between the rotor and the wheel. No one would even know it is there, and can be engineered anyway.

They are also only 6mm so not altering the weight balance onto the hub and bearing very much, not as much as low offset wheel for instance, as the extra mass is close to the centre of mass of the hub assembly.