You know I have a question I'll through in here for you. Why not make a rear drum that is drilled? One of the main down falls to drums is dust build up between the shoes and the drum. This also causes the brake to fade and excessive heat. So if one were to put 3 (I guess with our small drums it would be 2 holes) holes in it like they do the rotors it would help with both the problems.

Oh and unless your going to go with ABS I would bother spending the grand to change to disk But that’ll just add more money to the cost of it.

Wouldn't water get in and cause problems? Not an expert, just my thoughts.

yes it would...there is a reason why drums are sealed

LOL, Thats why they call them HOLES LOL

Not to really piss on someone's parade, but I've wanted to do this myself for a long time, but have "seen the light" and realized that just plain replacing the drums with discs would be an undertaking if not down right impossible for under $1000, which brakes are not worth to me. The other thing to think about, IF (and that's a big IF) you get the mechanics to work on it, what do you do about the electronic part of the braking system. I know MY car has ABS, which is controlled by the computer, so how do you re-calibrate the ABS system to recognize the discs in the rear. Also, what about the brake distrobution? You're going to have greater stopping power in the rear than you did before, and the car would behave very differently.

I think it's really cool that you thought this out and all, hell, I hate the look of the discs in the back and really wish I had drums, but in all actuallity, at the level we're at, it's not worth it. Don't worry though... we'll find a way to MAKE it work.

For now, if I want rear discs, I'm going with a cardbord cutout and spray paint.

The Abs system uses speed sensors, your car should already have them all the way around. The computer reads the speed of each wheel and activates the abs pump and distributes pressure the brakes. No need for a mechanics, simple to do if you have all the parts.
:wtf: Cardboard cutout??? Serious?? Ghetto :rofl:

Rear Discs impractical?
 

Yeah, I'm beginning to come to the same conclusion - it's too expensive. :cookoo: But I still have hope. I'm asking my friend to check on importing the parts from the Caribbean. It should be relatively cheap to buy there but the shipping will be expensive. Also, the Corksport kit - at $300 - isn't crazy; it's just that you still need the calipers and e-brake cables. Here's the best possible scenario I can come up with.

Corksport kit: $300
Caliper & e-brake cables: $100 (used from junk yard; a total guess)
Brake lines: $50 (get a set of SS brake lines from this forum, which will now fit
because you have 4 wheel disc now!)
Machine work to make the rotors 4 -lug: $50 (another guess; have to check with
your local machine shop)

= $500

... but then we still haven't dealt with the proportioning valve and MC. Anybody know the PNs for disc brake vs. drum brake on these? I wouldn't be surprised if the MC is the same, but not likely the porportioning valve.

Another option is to call someone like Mazmart or Mazda Recycling (I emailed the latter and they never got back to me).

But in the end, it might be better (from a performance rather than looks perwpective) to just upgrade the front brakes with the 626 or MSP set-up.

You should really junk the idea of machining the rotors. If your gona do it do it the right way and do all for wheels and make it a 5 lugger. Why spend a grand on up grading your car just to do it half ass. Plus I am prity sure there is a 4lug disk brake system out there. I use to machine, your looking at 75-100 an hour, at least thats the price in TX. and you'll have about 2hrs of work. And you better have a test part for the setup process. You never run your set up with out a test part or you'll be short one! BELIEVE ME! LOL

Rear Disc
 

Don't need to junk the idea. I made a mistake - the Corksport kit comes with 4-lug rotors so no machine work needed. :) And anyway, it was just an idea.

OH it does, what all is included?

Corksport 4-lug rear disc kit
 

The kit includes knuckles, hubs, and rotors. But you have to source your own calipers and e-brake cables. The guy at Corksport didn't mention anything about brake lines, so I assume you have to source those yourself as well.

You know, since most (or is it all?) of the 2001+ 4-lug cars have the same size front discs, and these do most of the stopping, wouldn't the most effective upgrade be to the MSP setup or the 626 V6 setup?

Not really, I mean it would be a good upgrade, but you'll never need that much stopping power. I really think if your wanting to up grade the brakes save up and do 4 wheel disc with ABS. If yours is like my LX it didn't come with it and I hate that. And get some slotted rotors. You'll have the same performace as upgrading to the MSP, IMO!

Hello,

you just have to go at junk yard and take all part from the rear brake from P5

after just do research for rear disk with 4 bolt and have the same spec(width and tinkness) of rear P5 disk(mazda make many model with 4 bolt rear disk)

just exchange the hub 5 bolt to 4bolt hub and put you 4 bolt disk.

about porportioning valve dosen't know if need to change.

for the booster you need one.

seb

Rear hub
 

My car is an LX also. I miss the ABS, too. And I agree about the slotted rotors.

I and many others I'm sure would love to know what 4-lug rear hub interchanges with our cars. Do you know which, or how to find out?

yep....it's just that easy.... :bonk: