rear disc brake conversion (updated)
 

I did a rear disk brake conversion a little while ago, but it seems like my rear brakes are doing most of the braking.
kit 94 integra rear disk brakes, 40/40 proportional valve. brembo cross drilled/slotted rotors, axxis pads.
I drive fast and brake hard, but my rear get worn down really fast, I've changed rotors twice already. never changed the fronts.
I am thinking of going back to the stock proportional valve. what ya'll think?

Re: rear disc brake conversion
 

a baller like you doesnt have a manually adjusted prop valve? :P

what kinda pads? (front/rear?)

Re: rear disc brake conversion
 

axxis ultimate pads/brembo disc both front and rear.

baller! I wish. I have .04 cents in my account right now. next race is on the 20th and I cant afford a clutch ;D thats how broke I am.

Re: rear disc brake conversion
 

hahah yeah you got all that fancy drilled and slotted. Ima just get summa dem blanks.

Anyone know where to get a cheap rear disc conversion? All of our junkyards don't have crap

Re: rear disc brake conversion
 

that has nothing to do with the brake power distribution. I think I am gonna switch back to stock proportion valve

Re: rear disc brake conversion
 

under hard acceleration then braking quickly or braking quickly, doesn't that transfer the weight to the rear?

Re: rear disc brake conversion
 

are your calipers seized?
if they dont let off enough your aggressive pad may be chewing up your rotor

Re: rear disc brake conversion
 

they are not siezed, met some one who said he had the problem. it was fixed after put in a stock proportion valve and bigger master cylinder

Re: rear disc brake conversion
 

Yeah I know it doesn't. I was referring to the posts about being a baller O0

Switching back to another proportion valve might solve it but aren't you supposed to use the 40/40 for rear discs?

Re: rear disc brake conversion
 

thinking about it I think the rear brakes are too small to have the same same braking duties as the front, so I think the 40/40 is a bad idea, maybe 20/40. if that exist

Re: rear disc brake conversion
 

Is the prop valve the one you're using from the integra you got the brakes from? What kind of pv do they have?

Re: rear disc brake conversion
 

90/91 CRX SI = 40/20 prop valve ;)

Re: rear disc brake conversion
 

Haha there you go!

I have some ITR front calipers, waiting to find some rear disc setup... I'm guessing if I use ITR/Legend rears that I would use the 40/40 valve?

Re: rear disc brake conversion
 

the prop valve I am using is a 40/40, it did not came with brakes since I pieced it together, but thats whats recommended for the conversion, I think my 95 ex valve is a 20/30, or 20/40 I am not sure but I know I still have it. I also need a bigger master cylinder.

Re: rear disc brake conversion
 

Ive heard of a few people on cb7tuner.com doing a rear disc conversion and just sticking with the stock prop valve and they said it worked fine. just throw the stock one on and see what happens.

Re: rear disc brake conversion
 

http://memimage.cardomain.net/member...4_161_full.jpg

Re: rear disc brake conversion
 

I would try the new master first, my eg came stock with a 4040 so I cant see that being the problem. I'm rocking stock backs, bigger master(cant remember what size) and teggy fronts still works fine :P

Re: rear disc brake conversion
 

take that bitch for a ripper and heat up the brakes real good, jack the car up and see if you can spin each wheel very easily, might have a master holding slight pressure on or??

Re: rear disc brake conversion
 

it seems like thats the problem, I have rusty brake dust all over my rear rims everytime I drive. so it seems like they are binding when it heats up.

Re: rear disc brake conversion
 

Check your ebrake cables to see if they are free. If they are stuck, they can hold pressure on the calipers and cause the pads to wear b/c they are slightly on seeing as how the ebrake and calipers are one unit. If thats the case, you can toast the calipers too by heating them up too much from the friction of being stuck, and then you need calipers too.

Not to thread-jack, but Im also in the process of swapping rear disc, I never knew about the crx si 40/20 prop valve, I guess that would be the reccomended piece considering Ill be using CRX rears on a 91 Civic right? BTW, did anyone else w/ rear disc notice that it looks like its just the spindles that are different not the whole trailing arm? Almost like I could just unbolt spindle for spindle since the caliper bracket is on it too. Anyone tried this or noticed it?

Re: rear disc brake conversion
 

yes the arms themselves are the same, but the hugs and brackets are different.

im not sure if you can just remove the drum hubs and pop on disc hubs and call it a day, i think some holes are different... not sure, go pioneer it!

Re: rear disc brake conversion
 

yes us can pop off your drum hubs ad put on disk hubs

4 TX50 bolts and 1 24mm socket

Re: rear disc brake conversion
 

Thats what I thought, It actually looks like a T-55 or maybe even a T-60 to me, but I wont argue if you know what youre talking about. Thanks ;D

Re: rear disc brake conversion
 

you are correct ;)

Re: rear disc brake conversion
 

got a 15/16 master cylinder from a prelude with rear disc, my eg has 13/16 so I guess thats a big upgrade, I havent got a chance to change it, hope it works.

Re: rear disc brake conversion
 

the lude MC fits?

ITR has a 1" i believe!

Re: rear disc brake conversion
 

the studs matches up to my other one, and the location of the lines are the same, I am waiting for some help to bleed the brakes, before I swap it out, wish I have one of those one man bleeders.
I have no access to itr parts, but when I do I will swap again

Re: rear disc brake conversion
 

NO. The weight is transferred to the front making the rear lighter. It's called dynamic weight transfer. Back in the days when rear wheel drive cars ruled the rally seen, some rally drivers used this method to help slide the cars around long corners. I've found that this method works good on front wheel drive cars also but, it takes a lot of practicing.

Re: rear disc brake conversion
 

I dont think the teggy will bolt up without changing lines and booster, stick with what you have that 15/16 will be from a prelude or 90-91 ex 4dr, they work perfect. If you find the pedel a little hard to push get a booster from a 92-95 civic si with 4 wheel discs,or the ex they are 9-5/8's.

Re: rear disc brake conversion
 

or even a 92-95 4 door with abs. saw one at the junk yard with everything still attached with a 15/16 master cylinder. I've got some brand new hubs that my buddy sold to me for $30 for both genuine honda yO! 8) maybe i should go snag the calipers if it works :D

rear disc brake conversion (updated)
 

after all the search, and trial and error. the prelude one did not fit because the hole for the lines are too big.
but I got lucky, my boy had one in his basement, from when he did his swap, but he was too lazy to change it, so he gave it to me, its from a 2000 ITR 1" it includes the booster and master cylinder, it was a bitch to get in without removing my intake manifold, and after I ramm it in there, I had to straighten and rebend the brake lines to reach because they are on the other side, then after that 30 minutes bleeding the system. then after that re adjust my brake light switch because for some reason it pulls the pedal in a little so the switch activated. everything is good now havent check yet to see if I still have the rear brake binding problem. but breaking feels a lot better. here are some pics of the unit.
http://img232.imageshack.us/img232/1856/10013171hy.jpg

http://img118.imageshack.us/img118/1491/10013161ub.jpg