6G Celicas Forums

Cone bumper is on hold because the metal cutter is jammed, and I need to cut the crashbar by 1/3..

Anyways I started on the rear brake swap. Heres how I did it:

Took the wheel off...



Used a clamp to clamp the brake line before taking off the brake bolt.



To get the two bolts holding the capliper I used the HEX extension, its very hard to take the bolts off with a normal allen key (its size 14mm)



Its off, side by side with the ST205 capliper, suprisingly the stock capliper is heavier than the ST205... Took the disc off the ST205 assembly.



Slammed it on just to see how small our stock disc is.



The ST205 disc was scrapping the dustshield so I took a hammer and slammed it, only to relised that the whole thing needs to come off coz once I hammered it I cant align the caliper to the hole. The dustshield isnt welded all the way around (thank god ), it has interval welded-joints and that made the removal process so much easier, I used a flathead screwdriver and hammer to dislocate the weld-joints. A 5 minutes job. I used a metal cutter to cut the remaining of the joints.





Everything is on, now I need to fix the offset. I'll probably use spacer(s) to align the caliper to the middle.



To be continued...

This post has been edited by lubu: Jul 21, 2008 - 10:54 AM

Wait a minute... are you telling me that those calipers fit "right on" (assuming you are using caliper spacers)!??!?!

Yup the distance between the mounting holes are the same.

And this is not a popular brake swap becauusssee?!?!?! Why bother with 7th gens when the 2-pot GT-4 ones fit?

They might fit the rear, but not the front. Not to mention they are VERY difficult to find.

so st205 rears bolt right up basicly, interesting...

I bit of overkill if you ask me though. Your front are going to look tiny compared to the rear now

Dont worry Batman, the fronts are next.

I forgot you have the original one of a kind with the chamfered slots.
Looks like you are making good progress.

This post has been edited by 97lestyousay: Jul 21, 2008 - 6:56 PM

Had a bit of time today so I decided to finish off the conversion...

To position the caliper so that the disc is aligned to the center of the caliper I used bolt spacers, like these:



These spacers work like a champ, they snuggly fit into place and I gotta say they fit in perfectly, perfectly. I used three spacers for each of them. (three spacers made of a thickness of abt 5.5mm)



Tighten everything, everything is solid. I placed the wheel in and.. ...the wheel didnt clear the caliper.
I remembered I bought a set (4) spacers a year ago but didnt use them coz they are 114mm instead of 100mm...obviously they wouldnt fit, soI cut them.

into little pieces...



Not so bad...placed the wheel on. woOOlaaa...perfectly..just clear the caliper.!!
Tested and working.
And here is a video clip showing that the wheel spins freely.
Note: the scrapping sounds is due to the rust formed rubbing against the pad. nothing major, should disappear after a good drive.

and that concludes the "Rear ST205 brake swap".

(Ill get a proper wheel spacer set on eBay but for now its aint too bad)
A pic of whats coming...



edit: added more info.

This post has been edited by lubu: Jul 22, 2008 - 12:36 PM

How thick are your spacers and what are the specs of the wheels you are running? (diameter, width, offset)

The bolt spacers is 5.5mm for all three, the wheel sapcer is 10mm. As for the wheel, mine is probably the worse of all, they have concave spokes making it hard to clear to calipers (the front ones will be worse since the caps are bigger). I dont remember all the specs but they are 17 inch, offset is 40 I think.

Today I made a start on the ST205 front brakes swap. Didnt do that much coz the rotors arent trimmed to size but here is the progress so far...

Wheels are off. Brake lines were hold to stop fluid from dripping..



17mm wrench were used to take out those two monster bolts. They were abit hard to take out as the space were limited but with alot of swearings and fugly facial expressions I got them out. :mrgreen:
Here are two caps side by side for comparison.



The ST205 front caplipers has no thread in the mounting holes, nuts will have to be used.
One of my buddy will take care the trimming so its all good

WIll update as soon as the rotors are back.

Those calipers are just SICK.

I wouldn't suggest using a nut.

I would use a tap and thread the GT4 calipers so that they function like the ones you took off.
much safer and a cleaner install.

great job so far

x2 - I'd like to make you some proper spacers for those back calipers if you'd let me [postage shouldn't be much?]. I can make them out of 4340 steel or possibly some stainless if I have the right size material left laying around here from one of our SS jobs. All I'd need are the dimensions of the set of washers you currently have installed [just 3 - ID, OD, and length is all I'd need]. Metric will be fine if that's what you're used to. I can also make a dimensional drawing for your use and so others can easily follow your footsteps. It would be my pleasure to contribute to the advancement of FWD Celica's.
It would benefit me too as seeing Darth Ripley's install first hand has convinced me of the power they are capable of - I'll be doing this sometime in the next year as well.

Nice job so far and an impressive set of updates/modifications/swaps. What happened with the engine swap? Saving that for last or changed your mind?

Ill have a go at that route playr.

Thanks Death, Ill PM you the dimensions a little later. As for the engine swap we got it this far...



But unfortunately the engine isnt running as it should, strange/weird knocking sounds coming from the long block. Im empty handed atm so Illl have to chuck another 5sfe in there, lay low and wait for another day.

Oh wow - so much work to undo. I have some spare rods and used but good shape pistons [.030 over bored] if you get it open and need some cheap fix LMK. As always I feel you should take these opportunities to upgrade but it would be a shame to let a few $$$ force you to reverse the swap work. If my parts can help LMK.
Hella progress tho man - keep it up

Thanks for the offer DEATH, I guess the real reason for me not to go with the swap is because next yr Ill go off to mine sites for two years to finish my degree and I cant take my car with mem:(. When Im back Ill do the 4th gen caldina conversion and AWD conversion . This is one car that Ill not sell.

Bought a new Angle Grinder today...
Glove, safety glass, earmuff...and its cut away...




...done.



But Im having problem with the sides, I cant get the sides to fit properly. It looks like its going to give in but its not, and Im dont wanna use too much force...




Should I just push it a little more or is there a proper way of doing this??

hey man how is the front brake swap going?


i was doing a little research and found out how some guys from a russian forum did a st205 brake swap on a caldina. they used custom caliper brackets to provide the proper offset and accomodate the caliper for the larger st205 brake rotors.









more info here
>click on "Firms & Styling"
>look for "фотоотчет об установке 205-х тормозов на Gt-t" as the topic title

This post has been edited by azian_advanced: Aug 4, 2008 - 3:07 PM