how easy is the swap here? i have a set of convertable front calipers that are gonna be getting out of powder coat in a few days (got it for free for knowing some characters from initial d! XD) and my front brake pads are ready for a change anyways. so can i just unbolt the old ones and bolt these right in or is there some other issue that i will run into later ie: lines wont work, dif thread patern, so on)?? i searched and all i got was turbo II swap threads and other random ****! thanks for any help!

 

is mind blowing how easy the swap is.

also, the t2 brakes are the same brakes as all the other 4 pot brakes and FD brakes, so they are simply referred to as t2 brakes.

 

they are completely different. the thread pitch is different on the hard lines. the caliper bolt holes dont line up to the spindles, the pads are different but you said you were changing them anyway. it would be easier to put fd calipers on than the big heavy ancient convertible calipers.

p.s. good job on knowing initial d. that takes skillz as a true drift master to be able to know them.

 

lol yeah well you watch the show or read the comics just for ***** and giggles and it paid off! i was in a group of other drifters and even some fan boys but i guess i was the nerdiest one! i waited like 1 min before they were gonna pass up the free poweder coating job and snatched that **** up!

anyways so i'm going to need to swap out the spindles and hard lines??? (prolly just get braided if i do) is there a conversion kit or an easy way to convert the spindles to fit with the t2 calipers? like i said i have these already and got them for mad cheap so y not.

 

off topic...but that asian in your sig..........
goddamn

 

Assuming two things: 1) by convertible front calipers you mean 4-piston calipers that came on most of the 2nd gen cars, and 2) you have an S5 GTU (like in your picture)... then yes, it is easy.

They will bolt right up to the knuckles (not spindles, as that is only part of the knuckle)

You simply need the hardlines and the flex lines appropriate for the 4-piston calipers as the single piston ones are different.

 

the GTU did not come with 4 piston calipers?

 

yEp!.. its a straight bolt on.. but i would probably recommend changing out the master and double checking on the port'portioning valve, jus in case!..

 

for the purpose of his swap the master is the same

 

Yes. Port portioning is very im port ant to latter computer diagnostics.

 

wait.. what? nothing you have said in this thread is correct by any stretch of the imagination.

 

lol the asian girl is a good friend of mine! :P

 

awesome guys! thanks for all the help! and yes my car is an s5! most of the stuff i noticed between the turbo 2 cars and the na cars seem to be a simple swap but i know a few things dont so i figured it wouldnt hurt to ask before i took this **** apart!

on another note i'm assuming it also uses the same size rotors?

 

I was about to say, if this is an S4 GTU, then why the hell are you swapping?! S4 GTU has 4 piston calipers anyway.

S5 GTU you'll need new rotors though... S5 GTU got the shitty single piston brakes with 5 lug hubs.

 

I think the S5 front rotors- single or 4-piston- are the same.

 

^

Well I'll be... It does appear as though the fronts are the same and the rears are different.

 

i know and you keep correcting me for some reason.

 

This is interesting. In 1989, the 4-piston setup came with 10.9" diameter front rotors vs. 9.8" on the base cars. See the info in the '89 brochure from the FAQ:

https://www.rx7club.com/showpost.php...27&postcount=6

But apparently in '90, all cars had the 10.9" front rotors, so the OP won't need to change them on his '90 GTU:

https://www.rx7club.com/showpost.php...29&postcount=7

 

awesome guys! this really helps me out!

so over all, all i really need is hardlines

 

Soft lines too. They are different than the soft lines in your car.

The prop valve, master cyl, and booster are the same on all non-ABS S5 cars.

 

^^^^
aight so just soft lines and hardlines and i'm straight then

 

Slightly off topic....if you delete the ABS is there anything to be gained by switching to the non-ABS booster?

 

S4 GTU = 4 piston calipers
S5 GTU = 1 piston calipers

 

Not sure what the difference is (and I'm too lazy to look it up).
The OP would benefit from a swap to a larger booster/MC combo for the four piston calipers...they'll work with his stock stuff but pedal travel will be a longer than ideal.