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  #1  
Old 06-09-2011, 03:11 PM
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Default Brake Fade

Hey Ya'll

At Collie on the weekend, my kept experiencing Brake fade quite severe.
within 2 laps of the track 1st time out, by the last corner heading onto the straight, the pedal was just about at the floor & every run after that within 6 decent applications of the brakes, they were done.

Now im researching into which fluid to put back into the system as the fluid ive got atm
a. i dont know enough about it - it was from my old mans work ( renault ) as spare UNOPENED fluid.
b. It clearly isnt doing the job.

Im looking at this fluid.
Brake Fluids - Sport Evo 500++ Brake Fluid

It appears to be what im after.

Has anyone used this or can they recommend another fluid to get?

Now also When bleeding the brakes, the brembos have 2 Bleed nipples on the fronts - Am i supposed to bleed out of both sides?

Cheers
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Old 06-09-2011, 03:18 PM
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For the brembos, follow the subaru diagnoal brake bleeding procedure (will dig it up in a sec) and bleed both nipples (heh, nipples) from the inside of the wheel well outwards.

As for the fluid, get a few bottles and flushout the whole system while you are there. I also imagine you could reduce the problem with better braking technique but that comes with time.

Now as for the brakes themselves, pedal to the floor is fluid, but when you were STANDING on it, did the car still pull up?
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Old 06-09-2011, 03:20 PM
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Yeah, what pads/rotors you running Dave?
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Old 06-09-2011, 03:28 PM
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John, Front Rotors are RDA Blanks, Rear Rotors Are Stock, Pads Are QFM A1RM's Front, Rear Are Genuine Brembo/Subaru/Stock Pads.

Mat(t) - Found the procedure :-D

Even standing on them didnt pull the car up quickly, saying that they felt a bit all over the place ( Where the bite was) when they went soft.

I have only done 3 track days on the pads and rotors. checked the pads, they still have plenty of meat but the rears are just about done.
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Old 06-09-2011, 03:34 PM
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This is the link you want

http://www.perth-wrx.com/vb/diy-mech...ir-brakes.html

Personally on my becauseracecar I ran the cheap Castrol fluid and just flushed it every event or two. Maybe if I was doing more laps (racecar) I'd consider buying something super expensive.
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Old 06-09-2011, 03:35 PM
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Reading the site your pads would be on/past their limit as a street / track pad.

Welcome to Collie.
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Old 06-09-2011, 03:38 PM
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Warning, Collie is hard on brakes :P
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Old 06-09-2011, 03:40 PM
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QFM A1RM's seem to be good brakes from what i have been seeing, what are the costs for gc8 4pots/1 pots does someone know?

also saw some motul brake fluid at auto pro dot 5.1 for 25 a pop for 500ml, anyone know if its any good?

could someone reccommend a good fluid for daily duties? e.g is castrol super dot 4 good or bad silver bottle?
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Old 06-09-2011, 03:43 PM
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Any brand DOT 4 changed regularly is good for light track / daily.
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Old 06-09-2011, 03:43 PM
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A 780 degree pad is too little for Collie?
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