Jap AE86 Brake Proportional Valve

[Tom86]

Hi guys,

Anyone actually own a genuine JDM Ae86? Is the brake propotional valve on them a staight bolt on replacement for Aus ae86? or is the brake line all different? a picture would be great.

Thanks

[SprinterTRD]

The valves look the same but the internals are slightly different.

[exquisit]

the valve looks totally different
u can still buy these brand spankin from toyota
bolt straight in
brake line is the same
from memory...

[Astroboy]

How can it be the same when the aus has rear drums and the JDM has disc rear ?

I think SprinterTRD is right and from my memory they look a bit different to

Maybe PM snake66 as he will have one removed atm

[SprinterTRD]

I fited one from a Celica with front/rear disks to my car and they look the same as the sprinter drum ones. They even have the same bolt mounts. Its the internals that are different to allow for the different pressures between drum & disk setup.

[scoot]

might i ask if you have the part number??!

[ae86 drifter]

is this the value that mounts to the strut tower???

[Gilly]

i have read somewhere (i wish i could remember where), that you can pull the guts out of a local one and it gives the right pressure to the rear discs, don't quote me but!!

[upgarage]

i used to have pics of the two types but i cant find them anymore

will try to take some pics, but its pretty hard to get a good view with the engine in

[Astroboy]

Straight bolt on and deadly

What the pressure/fluid displacement difference between a drum piston cylinder and a disc piston

Basically i would love to see someone try to do a emergency stop in the wet with a aus valve in a jdm unless they have very crappy pads or seized rear calipers in the rear there car would swap ends so fast it isnt funny

Both aus spec and Jdm valves already have a slight rear bias in the case of the 86's i have driven , adding a drum brake valve to a rear disc Jdm car would make this worse . You can make this better by balancing this back with better front pads .

Play it safe and if you are really unsure get a brake place to bench test the valve and its pressure Don't just go of someones internet advice as you are playing with your life