MSP vs. P5 front rotor size?

[Crazee D]

Can anyone please verify if stock FRONT P5 rotor size will fit a MSP caliper?

I bought a msp brake "upgrade" from SPD Racing a few yrs ago.

Thoughts?

 

[njaremka]

protege5 front rotors are smaller in diameter, and they should fit within the caliper. however, doing so would not be very safe, i would think.

 

[kudakev615]

youd need calipers rotors for the basic swap. not sure if the rears are the same but the master cylnder and brake booster swap wouldnt hurt either

 

[Crazee D]

youd need calipers rotors for the basic swap. not sure if the rears are the same but the master cylnder and brake booster swap wouldnt hurt either

Huh?

Could u explain this?

(homework)

 

[Kansei]

youd need calipers rotors for the basic swap. not sure if the rears are the same but the master cylnder and brake booster swap wouldnt hurt either

From what I've been told the non-ABS Protege master cylinder and brake booster (not sure which of those is different on the ABS-equipped Proteges, but yeah) works reeeally nicely with the MSP brake upgrade. I can't wait to do the full upgrade, my car needs it now

 

[Crazee D]

Nice problem to have!

So I need to source some parts to get the full effect from the MSP calipers...

But what is the size difference?
Stock specs...

 

[Crazee D]

TY

Ok so far from searching around I found this:

Rotor Size: Front/Rear
258mm/261mm (P5)
274mm/280mm (MSP)
MSP has the same front rotors as a 626 V6 & Mazda6 (rears also for mazda6).

Piston Bore: Front/Rear
***mm/30.1mm (P5)
***mm/34.93mm (MSP)
Both calipers have same piston bore size in front, MSP has larger pads.
MSP has 16.046% larger pistons in rear.

Brake Pad Size: Front/Rear
4800mm2/2700mm2 (P5)
5300mm2/3200mm2 (MSP)
MSP has 500mm or 10.416% larger pad surface area in front & rear.
Pad thickness for both brakes is 10mm/8mm front & rear.
MSP has the same front pads as a 626 V6.

Now what I really need is the rotor thickness for each system, Front piston bore, and specs for the caliper mounting locations if anyone has it.

dee dee dee....I shoulda found it earlier

 

[Alejo_NIN]

just for the record, i have been able to use rx-7 break pads in the rear and the 626 v6 and mazda 6 in the front with excellent results..

 

[Car_Liz]

It's not safe at all, so better think twice!

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[Alejo_NIN]

not sfae what?
i used them for 1 year with no problems...i don't see what's so unsafe about that

 

[FC3s Boy]

why would you want to fit a P5 rotor on a MSP caliper? the 98 mx6 v6 calipers and rotors are the same as the MSP (iirc it been a while)

 

[njaremka]

626, not MX6

 

[FC3s Boy]

626, not MX6

yea its been a while since i made that kit

 

[Crazee D]

Well, I am aiming to replace a caliper that was under 2 yrs old. This make 3 calipers seized for me in 2 and 1/2 years. WTF?? Any Ideas?

I hate spending money on parts I've already replaced.
I am shopping for options, checking prices for the 626 caliper that went with the '02 V6 2.5L.

I am trying to find if any one has a template or original caliper adapter bracket that either AWR, E-racer or VTTR used with their sets.

The Wilwood DynaPro has dust shields/boots and cost like $270 each for 4 pot, and the Dynalite are $134 for 2 pot.

 

[Crazee D]

Argh!

What is the deal with these calipers? What could cause them to keep sticking?

 

[JCell]

the main difference between the calipers is the size, very noticable when next to each other

Pic

 

[Crazee D]

Well, I've been shopping for a 626 caliper.
But I just don't get how I could seize 3 calipers in 2 plus years with only regular street use!

 

[TheMAN]

maybe you didn't lube the slider pins? and if you did, you probably didn't use the right grease? you're supposed to use silicone dielectric grease on them, NOT the black caliper grease which is for the pad shims (not used on the protege)

 

[Crazee D]

Well, I did have a good mechanic install my replacements (the MSP fronts). And they did ok for 2 years. I did not do any maintenance on them after that. Perhaps I should have. The sliders are still moving, it's the piston that is stuck. This is also what happened on my stock, original passenger side rear (6 months ago) and one of my stock, original P5 front calipers.

I may try to replace this one myself.

 

[TheMAN]

did you remove the caliper and see if the piston moves? you may have something wrong with your hydraulic system... bad brake lines, contaminated fluid, bad proportioning valve or ABS pump, or bad master cylinder

I find it hard to believe that the same corner of the car keeps having repeating problems