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98 Impreza Brakes

1K views 5 replies 3 participants last post by  E30 F34R  
#1 ·
I just did the disk swap on a 1998 Impreza Outback Sport. I used 1999 Legacy rear disk, I looped the E-cable to get rid of the slack. But the issue I am having is that the brake pedal is wicked soft(almost to the floor). I bled the WHOLE system with new fluid(front&rear) there is no more air in the lines.

But when I start the car and apply the brakes they go to the floor. I have to pump them 3-5 times and they are rock solid then go back to soft when I release and drive off. I have to pump them to get them to become solid and then they feel 100%

What I am wondering is should I swap over the master cylinder from the car I removed the disk knuckles? I am a BMW mechanic, so I am learning the ins and outs of Subaru's workings. Is the drum MC different from the disk?

Also is there a T or something that needs to be swapped? I went over the DIY thread and there was no mention of this being an issue. Any insight would be awesome!

~Brandon
 
#4 ·
The calipers are on the wrong side. Josh mentioned that he did the same thing. I broke down the knuckles a week before and thought I just grabbed the right one. On a BMW the calipers fit one way only. So I thought I got lucky! I have yet to change them around(-10 outside) but today is shaping up. I will report back!

Yes the bleeders are facing down, that is why I am SO sure of it being the issue.
 
#5 ·
Want to put Impreza RS brakes on my 97 Impreza

I went over the DIY thread

Where is the DIY thread for brakes? Can anyone link it for me?

I need to upgrade my 97 Subaru Impreza (part Outback, but mostly just Impreza) and it has stock 15" wheels.

My mechanic friend says a 98 Forester Legacy or 98 Impreza RS has brakes that might fit my car.

I want to read more about this. Anyone have any good advice?

My brakes suck & one cylinder is totally locking up so I got to move quick on this, but I'd rather upgrade the brakes than just replace a caliper on an otherwise-shitty system. I have rear drums, for petes sake, and I keep boiling my brake fluid.

Anyone put RS brakes on a stock Impreza base model? :screwy:
 
#6 · (Edited)
I went over the DIY thread

Where is the DIY thread for brakes? Can anyone link it for me?

I need to upgrade my 97 Subaru Impreza (part Outback, but mostly just Impreza) and it has stock 15" wheels.

My mechanic friend says a 98 Forester Legacy or 98 Impreza RS has brakes that might fit my car.

I want to read more about this. Anyone have any good advice?

My brakes suck & one cylinder is totally locking up so I got to move quick on this, but I'd rather upgrade the brakes than just replace a caliper on an otherwise-shitty system. I have rear drums, for petes sake, and I keep boiling my brake fluid.

Anyone put RS brakes on a stock Impreza base model? :screwy:
Matching years of the Impreza and RS will swap right over, I also suggest getting a set of new lateral links. Makes it a snap getting rid of the old drum setup(you will need to align the rearend after FYI):

GSP 4pc REAR LATERAL LINK WRX STi GC GD GC8 GDA GDB | eBay

You should also upgrade to a 1 1/16 unit Master Cylinder to fix the soft pedal feel.

Here is the DIY thread that I used to get an idea of the stuff needed. It was SUPER easy.
http://www.rs25.com/forums/f105/t144728-diy-drum-disc-brake-conversion.html