Brakes

[Ivan141]

Is that dot 5 or dot 5.1 filh?
Dot 5 is silicone based and mostly used on dedicated racecars. Also not very good for road cars due to the way it handles moisture.

[Mux213]

Ivan, didn't filh do rally's with his car? then DOT5 seems like a logical choice.

How much brake fluid goes into the system? When I will change my axle I need to disconnect some off the brake line and I am thinking about swapping the brake fluid right there and then as I have no idea what I am running now (probably 3 or 4).

[filh]

I looked at the specifications , here they are :
On the 1/2 liter can : ELF Moto : L Dot 5.1
Base non silicone .
100% Synthetic.
I've changed my old brake fluid, with that ELf fluid, and had no problem .
It's takes about 1 liter to replace fluid .
My system was in good state .
I had a Toyota Camry Wagon (2l TD) and change the brake fluid with that same Elf , and my fading problems disapeared.
For a daily use , there was no problem as it seems to be non silicone base,
unlike other expensive racing brake fluid , that you have to change every 3 months.That kind of fluid gets water charged , which is not very helpful in braking system.
I ride with that kind of fluid for about 10 years and very glad with results .
But I find a bad thing in AE86 braking system.
It's the rear brakes caliper .
The single piston floating caliper is not very well guided . There is only rubber bushing , without metal. And old cars like AE86 , you can make an experience : Remove a wheel and hold firmly the calipe, try to move it from left to right. You'll see that it's moving ( a little of course).
I think it's one of the most reason when you get a long brake pedal deplacement.And it's more evident when pads are very worn.
In rally racing , my rear pads are worn very sooner as front ones.
I use blue Pagid on front and Yellow Pagid on rear . Even with an hydraulic handbrake , I had to use that kind of pads on rear to be assured
with drifting.
Hope these will help!
Filh

[Ivan141]

Thanks for the good info.
I know what you mean with the rear brakes...they also wear a bit more unevenly than the front brakes. Isnt there any way to improve this?