rear big brake kit

[Skuce]

I would 'almost' hazard a bet that the Miata rear calipers are the same. Or ridiculously close



That looks almost identical to the caliper I have in my hand right now. Just the casting numbers are different.

I have a "06" in the position of the "58". I also have a "Y8" in the spot of the "Y1"....interesting.

Stoptech lists the "Sport" Thickness as 10mm....and Normal thickness as 9mm

Plus....here is a list for Brembo of all the cars that use the same "Non-sport" rear rotor

Application(s):

1991 - 1992 Ford Escort, ZX2 DOHC 1.8L, Front Caliper Cast # 22-14 - Rear
1993 - 1996 Ford Escort, ZX2 DOHC 1.8L w/ 10" Front Rotor - Rear
1997 - 2003 Ford Escort, ZX2 Rear Disc Brakes - Rear
1994 - 2000 Mazda Miata MX-5 - Rear
2001 - 2003 Mazda Miata MX-5 Normal Suspension - Rear
2004 - 2005 Mazda Miata MX-5 Normal Suspension - Rear
1992 - 1993 Mazda MX-3 Rear Disc Brakes - Rear
1994 - 1995 Mazda MX-3 Rear Disc Brakes w/ ABS - Rear
1990 - 1991 Mazda Protege Rear Disc Brakes - Rear
1992 - 1998 Mazda Protege DOHC Eng w/ Rear Disc Brakes - Rear
1991 - 1992 Mercury Tracer DOHC 1.8L - Rear
1993 - 1996 Mercury Tracer DOHC 1.8L - Rear
1997 - 1999 Mercury Tracer Rear Disc Brakes - Rear

Yes. That is for the smaller/regular rotor...but what that does prove is that the Miata was generally built using a lot of the same specs. Brembo doesn't have a listing for the "Sport Suspension" in their Blanks list

[ryan1]

we should move this to the bg brake forum.

[MD323]

but who's not to say the miata calipers wouldn't work?

i wish i could find a damn picture of the sport calipers...

JACK.

my 323 has miata rear calipers from an NB you need to use the BG mounting bracket to fit the rotor backspacing

[Skuce]

Good to know! That explains the need for "spacers" on the BG's

[Skuce]

Seems like the miata also came with a 10.9" front rotor too. I wonder what they're front caliper code is 22-14v would be sweet :D

90-93: 9.24" 9.085"
94-00 & 01-02 non-sport: 10.03", 9.87"
01-02 sport & 03+: 10.9", 10.6"

JACK.

Nope...

Mazdaspeed Miata w/ the "Sport" brakes

[Mazda_Powered]

this is some awesome progress we're making here guys lol. so we now know we can fit miata rear calipers with the aid of a spacer...and the rotors/pads are already the same.

therefore i'm gonna say we can use the 'sport' calipers/rotors/pads with the use of that spacer! now mixing this with the 2 pot calipers upgrade in the front would make an awesome braking BG IMO.

JACK.

[Mazda_Powered]

rear big brake kit

I made a discovery over seas on ebay about using 01+ Miata 'sport' rear calipers brackets with their oversized 10.6" rotors and pads.

http://cgi.ebay.com.au/Mazda-MX5-323-Ford-Laser-Big-Rear-Brake-Brackets_W0QQitemZ190204772783QQihZ009QQcategoryZ42605QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

On further investigating Shawn informed us he's using Miata calipers on his 323 (different year miata) with the aid of the spacers which are mentioned in the ebay link about.

What i'm basically saying here is we have an upgrade using the following:

01+ Miata sport calipers & brackets, 10.6" rotors, pads and some small spacers.

We have 3 pages going on over in the Internet Sightings

http://wihandyman.com/forum/showthread.php?t=35389

Also early Miatas have the identical rear rotors as our BGs as well, showing this swap is very possible.

Just thought i'd move this over here, leave it open for discussion

JACK.

[Mazda_Powered]

started a new thread guys

http://wihandyman.com/forum/showthread.php?p=457288#post457288

JACK.

[Skuce]

On further investigating Shawn informed us he's using Miata calipers on his 323 (different year miata) with the aid of the spacers which are mentioned in the ebay link about..

That isn't what he said. He said he's using Miata calipers with the stock BG bracket to correct for the calipers backspacing on the BG rotor. He did the exact opposite of the Ebay "kit"

[Mazda_Powered]

oups, sorry, i was trying to remember all the info from one post to another.

JACK.

[Skuce]

this is some awesome progress we're making here guys lol. so we now know we can fit miata rear calipers with the aid of a spacer...and the rotors/pads are already the same.

therefore i'm gonna say we can use the 'sport' calipers/rotors/pads with the use of that spacer! now mixing this with the 2 pot calipers upgrade in the front would make an awesome braking BG IMO.

JACK.

We don't know ANYTHING for sure yet. This is all just speculation, semi solid speculation...but still speculation.

And no. The Rotors are not the same (hence the whole point of this). it's only the pads. We also don't know for sure if the Miata caliper will work. We only know it will work on a BG rotor with a BG bracket currently. It's looking pretty good that it will....but there is still room for it to not until somebody physically tests it all out. This ebay "kit" stated that it was using a stock BG caliper. Which is what a lot of ppl that have never separated a brake line before will like.

[Skuce]

Think a mod just needs to move the other thread over to keep things all straight and clean

[MD323]

i have pics of what i used if it will help with your search, it includes the marking on the caliper

[MD323]

We don't know ANYTHING for sure yet. This is all just speculation, semi solid speculation...but still speculation.

And no. The Rotors are not the same (hence the whole point of this). it's only the pads. We also don't know for sure if the Miata caliper will work. We only know it will work on a BG rotor with a BG bracket currently. It's looking pretty good that it will....but there is still room for it to not until somebody physically tests it all out. This ebay "kit" stated that it was using a stock BG caliper. Which is what a lot of ppl that have never separated a brake line before will like.

i wonder if i can get ahold of a miata rotor and caliper "braket" for cheap enough to try it?
my 323 is a parking lot ornament right now anyway

[Turpro]

i have pics of what i used if it will help with your search, it includes the marking on the caliper

Post up all info that you know of shawn

Skuce-I'll look more into merging both threads later on a real computer instead of this phone lol. For now since the link is mentioned this thread will just be left as is.