Chickenball

Hi folks. Have a 93 Si with rear drums. I just got my rear disc brake parts and I was curious if I have to change the MC and prop valve for this. I have read people changing them on there DX and CX's but not the SI. Please help! Thanks.

EG6 SiR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CBracing &raquo;</TD></TR><TR><TD CLASS="quote">Hi folks. Have a 93 Si with rear drums. I just got my rear disc brake parts and I was curious if I have to change the MC and prop valve for this. I have read people changing them on there DX and CX's but not the SI. Please help! Thanks.</TD></TR></TABLE>

Thats weird, are you sure you have an Si? Because I too have a 93' Si and it came with rear disc brakes. I could have sworn that all Si hatches(92-95) came with rear disc brakes. But correct if i'm wrong.

the_0ne

could a ITR master cyn fit on a cx boosteR?

ZzZzz EH2

I thought the same thing.

Ive never seen a EG SI without rear disc.


-Addict

vtec94civic

i have almost the same question but i have 94 ex. i just ordered a eg6 rear disc swap from hmotorsonline and i was wondering if i need to change my prop valve. i read somewhere that i don't need to chane the mc and prop valve since its an ex, but i also heard of somepeople switching to gsr mc's and integra non abs rear disc prop valve. if anyone has any info let me know please.

stripes777

i would like to know also, btw how much u guys paid for the sertup thanks

2lua

if you are going from drum to disk (gsr) , you should change mc,bb and non abs prop. valve (4040) or si (3040) this will have better brake distribution, but again some of h-t members will have a difference view about the prop. valve

B_CRUZ!

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2lua &raquo;</TD></TR><TR><TD CLASS="quote">if you are going from drum to disk (gsr) , you should change mc,bb and non abs prop. valve (4040) or si (3040) this will have better brake distribution, but again some of h-t members will have a difference view about the prop. valve</TD></TR></TABLE>

IMO the 4040 makes the rears too 'touchy'. 3040 should be fine. I upgraded my m/c also to a 15/16 one from a 91 EX Civic. nothing to reflare or mod.

rxse7n

From what I read, it seems to just be preference. You can run the rear discs without upgrading the prop valve, m/c, and booster right?

Chickenball

I have a CDN 93 Civic SI coupe. Which is EX to you American folks. I paid $150 USD for mine but what killed me was the duty and freight. I paid almost what I paid for the brakes.

So I guess the answer to my question is to not change anything at all. I know the SI or EX came with larger front disc brakes then DX and CX's. Thanks for the help and any more info would be great. Thanks.

vtec94civic

i also have a canadian si which is an ex. i also paid $150 for mine but i got the whole rear suspension. shipping was $150

vtec94civic

i heard from somewhere that you don't have to replace the mc and brake booster on the ex's. i think you don't even have to change the prop valve but i'm not too sure on that.

Chickenball

Any more info? I checked the markings and it says 7/8. TIA.