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View Full Version : Xedos 9 brakes on 323F BA ?


Vocko
11-05-2008, 10:11 PM
I've got a whole X9 for scraping parts, except the engine, and I have 1.8 BA...
First thing that came in my mind is fitting its brakes on my BA.

Is it possible and would I need any parts from a V6 BA (because of the 5x114,3 pattern, joints, whatever...) ?

dave0r
12-05-2008, 05:06 PM
i did it
its alot of work

not worth it
better to do the Ba Lantis-Subi/Mx6 combo

http://www.astinagt.com/forums/showthread.php?t=10847

RedLineResident
12-05-2008, 09:19 PM
isn't the most common swap from the 4 stud to a V6 5 stud.

Bigger brakes, better stud pattern for greater wheel choice.

Whats the difference between the V6 Astina brakes and the Xedos 9.

Vocko
12-05-2008, 09:29 PM
X9 has 286mm and 275mm discs which are "a little bit" bigger than the ones on a V6 Astina.
And yes it is the most common swap (V6 => I4), but I have a X9 for breaking parts and for V6 parts I have to pay alot (its not cheap because BA chasis is so rare here and V6 is even rarer).

dave0r
13-05-2008, 10:19 AM
you forgot to add the the Xedos 9 has 2 piston brakes and larger pads.

thicker rotors also 26mm thick vs the 22mm of the Astina

RedLineResident
13-05-2008, 11:07 AM
^ oooh i want a set of those

my V6 are doing the trick but the rotors are heat warped and i would love 2 piston calipers.

Vocko
13-05-2008, 03:49 PM
@dave - yep, forgot... I'm at work trying not to get caught watching Mazdas so I need to type fast :D :D :D

I'll dissamble the X9 and see what can be done, 'cause its really not a problem to switch to 5x114,3 from 4x100 if that is the biggest problem with the swap.

RedLineResident
13-05-2008, 03:59 PM
ok here's the 1st and only step you need

send a Private Message (PM) to the all wise one 'Cosmo Dude'.

He know mazda's in and out, and is a really nice guy.

He should be able to give you step by step instructions and am sure will get you on your way in no time.

Vocko
13-05-2008, 04:14 PM
Thnx, I'll write to him right away.

Cosmo Dude
13-05-2008, 06:14 PM
I think that you would need to start with a set of GD 626 (Capella) front wheel hubs. They should bolt straight to the front of your 323F in place of the standard hubs. These hubs should be able to fit the X9 disks and calipers.
You may need to enlarge the bolt holes on the wheel hub where the caliper bracket mounts and you may need to install adjustable camber pins to correct the camber.
There is a bit of speculation in this but it has a sound base.

Vocko
15-05-2008, 07:58 PM
Ok, i'll try to find GD wheel hubs and in the mean time I'm gonna dissamble the X9.

I'll write as soon as I do something.

Thnx once again Cosmo Dude.

dave0r
16-05-2008, 04:52 AM
GD hubs??? isnt the tie rod arm hell longer than the BG/BA/BH??? ,are the GD hubs the same neck thickness to the strut as the BG.BA? GE's are heaps thicker in the necks so they dont bolt up

you could get the BA V6 hubs front and rear, 5 stud problem solved, as this is a PROVEN fit...my 2 cents

drill out the bolt holes 2 mm for the calipers and then bolt the 2 pot brakes on...its all been covered before..i.e i did it, but the calipers didnt clear my wheels, so i gave up

RedLineResident
16-05-2008, 08:50 AM
so what your saying is i can have 2 pot calipers on my V6 with a straight swap of the calipers themselves?

anyone know what kinda $$ im looking at here.

Aaron
16-05-2008, 12:36 PM
Depends how much you get the calieprs for, then get new pads, a caliepr rebuild done and probably new rotors. Using used parts for testing is fine, but once you know they work you should do it right.

ie my big-rears are all (barely) used parts just to get clearances etc, but the engineer will only sign off once I'm running new consumables and rebuilt calipers. (no drama as that's a ways off).

Big fronts (320ishmm) will be same deal, new calipers, new rotors etc etc

The thing is its no use replacing used v6 brakes (which are pretty decent anyway) with slightly better used brakes - you just won't see the gains in performance capability.

A.

RedLineResident
16-05-2008, 01:16 PM
yeah the V6 are decent, i think new fluid would do me a world of good tho,

thanks for the tip, i just like the idea of trimn pot calipers i guess.

Cosmo Dude
18-05-2008, 02:38 PM
OK, one of the first thing to consider is mounting the brakes to the knuckle. The bolt spacing on the BA, GD and HD is 160mm.

If the Xedos spacing is different then nothing I've written is relevant.

Aaron
20-05-2008, 10:37 AM
yeah the V6 are decent, i think new fluid would do me a world of good tho,

thanks for the tip, i just like the idea of trimn pot calipers i guess.

Nothing wrong with the idea...

To give you an idea, I switched from DBA Slotted/drilled Front/Rear with Bendix Ultimates to USED v6 as they came from Japan complete with Pads and rotors and the different in pedal feel, initial bite and progression was outstanding. Fade resistance and feel from cold-hot-very hot is far superior.

v6 brakes are excellent and in good condition with good pads (Greg @ GSL can hook you up for a decent price) would be more than enough for 99% of street and trackday use.

A.

Cosmo Dude
29-05-2008, 05:16 PM
I now have a set of Eunos 800M (Xedos 9) calipers and whilst they have the correct bolt spacing neither the BA V6 nor the GD 626 wheel knuckle will extend the caliper far enough for the 296mm rotor to fit. :(
Now I would suggest to Vocko to have brackets made to fit your Xedos calipers to the knuckles you have. I don't know about the laws in Serbia but you may be able to re-drill the disks to suit the wheel bolts so you can keep your original wheels.

pr1mo
29-05-2008, 05:21 PM
lol laws?

Vocko
29-05-2008, 06:00 PM
This saturday I'm going to take the Xedos brakes apart and see exactly what has to be done to make them fit.
Thnx Cosmo Dude, your comments and knowledge is well appreciated!

Vocko
04-06-2008, 07:14 AM
Some pics

Fathers "white" and the fallen giant :(
http://www.postimage.org/aV2bYLOi.jpg (http://www.postimage.org/image.php?v=aV2bYLOi)

My friend braking his balls off trying to unscrew some bolts
http://www.postimage.org/aV2b_lA0.jpg (http://www.postimage.org/image.php?v=aV2b_lA0)

This is whats left in the front
http://www.postimage.org/aV2c05YJ.jpg (http://www.postimage.org/image.php?v=aV2c05YJ)

Doing things the easier way with a lot of parts that we dont need :D
http://www.postimage.org/aV2c15ki.jpg (http://www.postimage.org/image.php?v=aV2c15ki)

Next time will tackle this, we're going to bring a friend who's big, strong and dumb :D :D :D
http://www.postimage.org/aV2c1zg0.jpg (http://www.postimage.org/image.php?v=aV2c1zg0)


Keep you posted

Aaron
04-06-2008, 11:11 AM
Don't bother with the rears - they use a different hand brake design that almost certainly can't be translpanted.

In the rear adapt the factory calipers to grab a big rotor. Not vented but still 280mm. Worked fine for me, all Mazda parts too. My Avatar pic shows the bracket and caliper for the 280mm setup mounted over the stock 251mm rotor.



A.

Vocko
04-06-2008, 05:13 PM
:confused: :confused: :confused: :confused: :confused:

I have drum brakes in the rear. First i'll fit rear disc brakes from a V6 and then fit the ones from the X9, but you say it cant be done (or with a lot of hassle).
OK!

You :confused: me with "rear adapt the factory calipers to grab a big rotor" (you have standard disc in the rear and I understand this), but then you say "My Avatar pic shows the bracket and caliper for the 280mm setup mounted over the stock 251mm rotor."

So... I need to mount the standard caliper over the 280mm disc or mount the larger caliper over the 251mm disc.
Of course wher're talking 'bout the rear conversion ? Just to be exact.

Aaron
06-06-2008, 03:30 PM
Ahhh rear drums...

What i mean is the X9 has a drum brake inside the rotor, and that drum brake acts as the parking brake. The v6 Astina handbrake is a cable actuating the caliper on the disc.

If you're going to have to convert to rear discs then the setup I have would probably need the v6 stuff as a basis (I started with 4 stud rear discs, then upgraded to v6 5-stud and then changed the caliper brackets and rotors to take the 280mm rotors, but still using the stock calipers).

When you look at the rear discs of the v6 you'll see there's a bracket and a caliper, the caliper section can be bolted onto a bracket from another mazda that locates the caliper further out to fit over the bigger rotor.

A.