NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   2nd Generation Specific (https://www.nopistons.com/2nd-generation-specific-17/)
-   -   Brembo Question (https://www.nopistons.com/2nd-generation-specific-17/brembo-question-59566/)

Tomoya 05-28-2006 06:31 PM

Nice to know. Lot of help I appreciate it!!

donhayes 05-29-2006 08:15 AM

if you want sloted rotars get powerslot. They fit right up. I've had no problems with them. but thats my 2 cents.

Jedi 05-29-2006 09:50 AM

Do not buy brakes off ebay.



That is all i have to say about that. brebo doesnt make a slotted or drilled rotor for FCs

Cheers! 05-29-2006 09:14 PM

Brembo does not make slotted or drilled brakes for the stock sized rotors for 2nd or 3rd gens. Brembo rep told me they are either real brembo blanks that a machine shop slotted or drilled out. He said lately they are fake blanks to start with because machining time costs too much money in the USA for small shops. The new batches are coming from china. They are cast chinese rotors and drilled or slotted or both in china. The boxes are fakes too.



Genuine brembos only come in blanks. Previous to 2002 they had only fronts and did not offer rears. Now they off rears. Please see attached file. These are genuine brembos I ordered from tirerack.com



B25362 are the fronts

B25621 are the rears.



These part numbers are for a TII or NA GXL/others wtih 4 pots and use the vented rear rotors.

Tomoya 05-30-2006 12:01 AM

Now Im confident in buying the "REAL" brembos. As long as I know the part numbers and what they look like, im sure I can do the rest of the research with ease. Tirerack seems the right place to go. Ill try them.



Thanks Guys!

Cheers! 06-04-2006 11:11 PM


Originally Posted by lxk199' post='821300' date='May 26 2006, 10:11 PM

also, rear calipers aren't cheap. a stock reman for my GXL (vented rear) was $90 or so, while remans for the front (4 pistons) were only like $36 apiece. It's cheap to upgrade the front to 4 piston if you don't have them already (mounts are the same), but the rear you might as well leave alone if you don't have vented already. Unless you have a spare $180 just for stock calipers.



I think the master cylinder is different between the single piston and 4 piston front caliper models.

lxk199 06-05-2006 12:36 AM

yes, but I am almost sure you can use the smaller master cyl with the 4 pots, no problem. My old roommate's 89 GTU had the 4 pot conversion, but I'm pretty sure it still had the 1 pot master cyl.

Cheers! 06-05-2006 07:49 PM

hrm... that woudl change how far the travel of the pedal goes. Because in hydrualics the X-sectional area of your pump defines the hydraulic pressure you get as a function of force applied. This will affect the pressure exerted on each of the 4 pistons on each caliper...



It would affect how much clamping force you get as well from the braking system.


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