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Old 01-31-2009, 03:26 PM   #51
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Danm now imma have to do this conversion lol.

Quick question! Would this work as a rear set up as well?
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Old 02-01-2009, 04:27 PM   #52
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I guess it could, in the same way that the front is made to work with the calipers...

I think I found the merc disks...seems like it may have come from a C43 AMG model, but I need to find the disc specs somewhere to confirm...either that, or somebody else to reveal the big secret.
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Old 02-01-2009, 09:26 PM   #53
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Just finished minor renovation at my home, now everything back to normal and I just took off the wheels to paint the rotor and polish the words on the caliper. the rotor is from Vito/Viano. I don't know if other merc models share this disc. Go to the first post of this topic, i have already given the part number of my febi disc, they have the spec on their web.





As for the rear, i didn't even think about doing it.
1) I think the Trial Celica only installed the ST205 caliper in the front.
2) I think the stopping power is more than enough now. i didn't feel brake fade after a few hot laps.
3) ST205 rear caliper and rotor can bolt straight on to ST185/ST202, no modifications
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Old 02-07-2009, 04:48 PM   #54
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what year these calipers off of. I cant seem to find em off ebay lol. Need right year to check the junk yards
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Old 02-08-2009, 10:13 AM   #55
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1994-1998 generation 6 celica, ST205 model ^^^
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Old 02-08-2009, 10:49 AM   #56
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i knew the model and gen just not the exact year lol.
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Old 02-08-2009, 11:04 AM   #57
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my bad...

but yeah, any year between 1994 and 1998

I'm going to try this, but possibly with the ferarri 355 brake discs as suggested earlier in the thread...i'll keep you all posted on developments.
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Old 02-08-2009, 06:53 PM   #58
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Anyone have a site i can get these from? lol found em on the UK ebay but they dont ship
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Old 02-09-2009, 11:42 AM   #59
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wow, that looks sooo sexy
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Old 02-10-2009, 08:08 AM   #60
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This center hole you say that needs to be pressed in...why is that important? I'm curious

I'd assume that if the center hole is big enough to let the axel to poke through and allow the disc to seat firmly on the hub, there would be no need for this, no? I'm sure I'm missing the point of this somehow, but I'm not sure how...
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Old 02-10-2009, 10:59 AM   #61
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I didnt get that either. The rotor just sits there and the caliper keeps it firmly in place and once you bolt the rim on it the rotor will not move.
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Old 02-10-2009, 08:49 PM   #62
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of course, the rim will set the rotor firmly into position.
Without proper center hole, as soon as you leave your hand off the rotor, it will drop down and the rotor will be seating off from the center of the hub.

Again, if you don't set the rotor in the the same axis of the hub, the rotor
will spin in orbital form hence unbalance rotation.

The guy in Portugal that TSPORTPOWER posted before also has center ring made on his Brembo rotor. I don't know that guy, and he doesn't know me... that isn't a coincident. Ask your mechanic about it for more details.

I hope i explain clearly enough.
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Old 02-11-2009, 01:23 AM   #63
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Ahhh.....yes, makes perfect sense - thanks for that buddy
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Old 02-11-2009, 02:47 AM   #64
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No it makes sense forgot theres a lil play on the studs lol.
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Old 02-12-2009, 05:27 AM   #65
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found a pic from japan.



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Old 02-12-2009, 06:55 AM   #66
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Quote:
Originally Posted by Preludekid View Post


If you use the 205 rotor, it will grind the lower ball joint. This is my setup.
would it work the same wit a super strut suspension set up
do u know
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Old 02-12-2009, 06:18 PM   #67
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powerslot makes a bigger rotor for the celica, would the gt-4 caliper milled down fit those?
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Old 02-12-2009, 07:03 PM   #68
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Quote:
would it work the same wit a super strut suspension set up
do u know
That I don't know... might be you can just use all stock parts from GT4.
Since both car uses super strunt.
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Old 02-13-2009, 05:03 AM   #69
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Quote:
Originally Posted by Soo__Fuego View Post
powerslot makes a bigger rotor for the celica, would the gt-4 caliper milled down fit those?
the disk pad surface would still be as thin as oem zzt discs though...
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Old 02-13-2009, 10:08 AM   #70
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That I don't know... might be you can just use all stock parts from GT4.
Since both car uses super strunt.
ye tink thats my nxt job
nice1
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Old 02-13-2009, 05:53 PM   #71
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the disk pad surface would still be as thin as oem zzt discs though...
ahh ok, gotcha
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Old 02-17-2009, 09:17 PM   #72
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Since I didn't take any pics when I go through this process,
I hope someone will write a install guide after the have sucessfully installed.
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Old 05-28-2009, 03:23 PM   #73
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important note for this mod is , that using the stock brake lines is ok becouse the rubber bends ok no problem , i have this also and had the Project MU brake lines and they are like you no the stoptech brake lines but this is made for the stock calipers , meaning that they are short , prob is that when turning the wheels at max turning on manovers , the cables strech too much , one just broke 2 days ago , problem was solved by mesuring the cables stock mesures are 60 CM conector to conector , made 2 brand new SS brake lines like stop tech whith 67 cm no stress on the lines this way .

also to use this KIT on stock wheels HAVE to use at least 15mm spacers ( told by TRIAL japan to me ) and its a fact becouse i use the stock wheels and have to use that spacers

any help on the conversion please PM me

and many thanks to prelude KID
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Old 06-03-2009, 04:57 PM   #74
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Can't wait till I do this conversion.

Anyone done the rears yet?
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Old 06-04-2009, 11:55 AM   #75
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Do you know if the brakes from the 90-93 ST185 Celica GT4 fit?

The reason I ask is because AP Racing just made a new Formula Brake kit for the ST185 and I'd love to see if it would fit on a ZZT Celica.

http://www.apracing.com/info/product...1018_1938_1713

Part numbers:

Black Caliper Kit Number - CP5570-1018.G8
Red Caliper Kit Number - CP5570-1018R2.C8

Incidentally, that AP Racing brake kit can be picked up through Stillen.

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Old 06-11-2009, 09:59 PM   #76
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Not really sure, but my setup should fit 185 as well. Hence, the AP kit should fit on ZZT231 and ST185. The entire front hub between 185 and 231 is very similar.
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Old 08-07-2009, 06:47 AM   #77
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Let's bring this topic back to live....

I've found some GT4 calipers and I was wondering if anyone here has done this conversions lately.
The topic starter used modified Mbenz rotors and I want to know if I don't have to modify anything if I use the same rotors as Trial does (check link):

Link: http://www.trial.co.jp/trial-usa/cel...i_calliper.htm

According a buddy of mine the Trial rotors are from TRD, but I don't have any info about these rotors.

Can somebody help me out, please?
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Old 08-07-2009, 07:50 AM   #78
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See the trial japan website.
I don't know any japanese but its written something about NISSAN GTR.
I think they use the disc from them.

http://www.trial.co.jp/osaka/origina...g/turning6.htm

Actually, how many people are interested in it?
Maybe I can custom make the hub just like the Trial version, and become a sponsor here.
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Old 08-07-2009, 08:15 AM   #79
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It looks like you are right.

If you could make the hub just like that it would be awesome!

By the way, is your set-up still OK?
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Old 08-07-2009, 09:20 AM   #80
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Yes, without a single problem.
I am still alive after a few togue run against some fast cars like DC5R, DC2R, and Z33. Celica has more potential then people thought of.

If there are enough people interested in it, I can go see how much this would cost. My 6th gen friends also copied my setup. He is also a sponsor over at the 6th Gen Celica site. I can ask him if he is interested into doing this. He has good reputation over there. Hopefully 7th&6th gen guys group together can make the costs even lower.

My initial thought is have the disc center hub make to correct spec. Provide brake disc information so buyers can purchase it in the States. Do the hub/disc assembly on your own. The center hub isn't heavy so that will save some bucks there. I can also source the calipers too, but shipping won't be cheap..... so....
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Old 08-07-2009, 09:41 AM   #81
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i would love to do this convcersion but one lil project at a time for me lol
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Old 08-07-2009, 10:43 AM   #82
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I am going to get a rough quote of making it sometime next week.
My wife is out of town visiting Japan, gotta stay home all day long to look after my daugther.
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Old 08-07-2009, 11:55 AM   #83
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I would be down for a kit actually... or at least just the hardware I can source the calipers myself if need be.
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Old 08-07-2009, 02:20 PM   #84
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the site ive been to has them for roughly $400 a set (front or rear) so if you can do beter that would be great.
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Old 08-07-2009, 10:01 PM   #85
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Quote:
Originally Posted by Preludekid View Post
I am going to get a rough quote of making it sometime next week.
My wife is out of town visiting Japan, gotta stay home all day long to look after my daugther.
That would be great. I'm going to pick up the calipers today.
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Old 08-07-2009, 10:46 PM   #86
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I was wondering why the GT4 brakes are grinding against the lower ball joint and the Mercedes rotors don't.
All rotors have flat surfaces right? So how is it possible?
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Old 08-08-2009, 11:58 PM   #87
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There must be someone who can tell me why the GT4 rotor hist the lower ball joint and the MBenz rotors don't??
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Old 08-09-2009, 01:10 AM   #88
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there different in thickness
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Old 08-09-2009, 02:20 AM   #89
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there different in thickness
The thickness is no issue here, I think.

When you look at this picture the problem would be the back of the rotor grinding against the lower ball joint.



Every rotor is flat at the back so why would the GT4 rotor hit the lower ball joint and the MBenz wouldn't?
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Old 08-09-2009, 07:47 AM   #90
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differences in rotor hat height most likely determine if it hits the ball joint or not
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Old 08-09-2009, 08:52 AM   #91
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differences in rotor hat height most likely determine if it hits the ball joint or not
You're right...I checked it out this afternoon and depths are different.

But the GT4 rotor doesn't hit the lower ball joint. There is a clearance of 5mm.
I'll post some pictures this evening.
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Old 08-09-2009, 02:23 PM   #92
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Checked out the GT4 calipers and rotors this afternoon and found out that the problem with the GT4 rotors isn't the lower ball joint.

This is a photo of the GT4 rotor on my celica. You see that there is still clearance:



The bolts for mounting the capiler are also no problem for the GT4 rotors.



But the problem is the diameter of 315mm and the rotor not being in the middle of the caliper.

@Preludekid: Can you tell me how much clearance the MBenz rotor gives to the bolts of the calipers? And could you take a picture of it?
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Old 08-09-2009, 02:59 PM   #93
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Please someone sort out a cheap and easy way of getting these brakes mounted. A cheap and easy to find stock disc from another car that will bolt on and exact measurements of the amount of machining needed to grind down the caliper mounts would be awesome!
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Old 08-09-2009, 08:56 PM   #94
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one noob question. Why is this better than the stock 7th Gen brake?
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Old 08-09-2009, 09:21 PM   #95
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^our stockies are a single piston. the ST205's are 2 piston calipers = better stopping power
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Old 08-09-2009, 10:12 PM   #96
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Originally Posted by blacktsport View Post
Please someone sort out a cheap and easy way of getting these brakes mounted. A cheap and easy to find stock disc from another car that will bolt on and exact measurements of the amount of machining needed to grind down the caliper mounts would be awesome!
Working on that as we speak!

I'll keep you guys updated!

btw: look at the difference between the stock GT rotor and the GT4 rotor!!

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Old 08-10-2009, 12:09 AM   #97
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Perhaps this rotor from the Subaru WRX will do the trick.
It has 5 holes with a center circle of 100mm, diameter is 293 and the height is 57mm. The only downside is the thickness of 24mm.

Perhaps this means that we don't have to take 3mm of the caliper and drill a hole pattern.
We would also have clearance for the bolts/nuts to mount the calipers with and don't grind against the lower ball joint
It would just leave us with machining a center ring for the hub.

Do you guys think this will work?

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Old 08-11-2009, 12:02 PM   #98
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If everything goes as planned I'm able to test a Subaru Impreza WRX rotor tomorrow evening! I hope this will work. It saves a whole lot of effort.
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Old 08-11-2009, 12:18 PM   #99
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gl bro hope it works
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Old 08-11-2009, 01:33 PM   #100
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yeah hope it all works out bro
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