DukeOfUndersteer
DukeOfUndersteer UltimaDork
9/8/16 3:29 p.m.

So, it is coming to that time that I need to do front brakes on the Protegay. I have read, but haven't done that much investigating, that I can use Mazda 626 front brakes and it's plug and play.

The question I have is, do I need 626 front calipers?

Keith Tanner
Keith Tanner GRM+ Memberand MegaDork
9/8/16 3:33 p.m.

Depends. What are you trying to accomplish, and what's different about the 626 parts?

DukeOfUndersteer
DukeOfUndersteer UltimaDork
9/8/16 3:36 p.m.

I heard it's a "big brake kit", so I am thinking, eh, what do I have to lose? I am assuming that the front rotors are a tad bit bigger than mine and I would need the calipers to complete the mission. Not for road racing or anything, just along the lines if it's gonna cost about the same from here on out to do brake jobs, why not?

moxnix
moxnix HalfDork
9/8/16 3:58 p.m.

Need the rotor's, calipers, brackets and pads from a V6 626. It is pretty much the same as the MSP front brakes.

DukeOfUndersteer
DukeOfUndersteer UltimaDork
9/8/16 4:06 p.m.
moxnix wrote: Need the rotor's, calipers, brackets and pads from a V6 626. It is pretty much the same as the MSP front brakes.

Awesome! All I needed to know! Thankya!

Dusterbd13
Dusterbd13 PowerDork
9/8/16 4:30 p.m.

Done it on every p5 I have had. Worthy of the investment.

Don't use pfc pads. They just don't work right in this case.

codrus
codrus GRM+ Memberand SuperDork
9/8/16 4:35 p.m.
DukeOfUndersteer wrote: I heard it's a "big brake kit", so I am thinking, eh, what do I have to lose? I am assuming that the front rotors are a tad bit bigger than mine and I would need the calipers to complete the mission. Not for road racing or anything, just along the lines if it's gonna cost about the same from here on out to do brake jobs, why not?

There's lots of reasons why not. It's heavier, for one. For another, if you change the piston sizes you're going to throw off the brake balance and possibly the pedal effort/travel relationships. Finally, it's a whole lot more complicated to buy parts a couple years down the line when you have to try to remember if it's '96 626 parts on the front and '93 on the back, or was it vice-versa... ? (I have no idea if those parts fit, I'm just making this up).

Brakes aren't rocket science, but the relationship between caliper & master cylinder piston sizes, prop valves, and pedal ratios are somewhat complex and if you start changing parts without thinking it through it's easy to screw it up. If you're upgrading the brakes to handle track duty that's one thing, but if you're just putting them on because "it costs the same" then you're setting yourself up for a lot of potential PITA in the future for no good reason.

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