Hello ,
i want to make the rear disc conversion on my EJ1.
I have the rear trailing arms from an Civic Vti. The seller gaved me 2 trailing arms , a sway bar , brake booster , 13/16 master cylinder and 30/30 prop valve.

On my car, 1993 Civic Ex , i have installed a 7/8 master cylinder and a 30/30 prop valve. On front , i have 10.3" rotors , stock calipers.

1. I want to ask u guys , which master cylinder i should use now, 7/8 or 15/16?? Which one is the best for my setup?
2. I need the 40/40 prop valve , or i can use my 30/30 ?
3. And , is there a difference betwen my stock brake booster and the VTi ones?

Thank u very much and hope to get ur answer soon , so i will be able to start the conversion.

LE : I already purchased a 4040 pv from ebay and trailing arms bushings

 

Anyone?

 

this is why nobody has answered your questions...post this thread in the appropriate forum listed below...this is a tech forum related to ef/crx chassis only...!!!
https://honda-tech.com/forums/forumdisplay.php?f=1

 

No one??

 

Moved.....

 

7/8 MC with EX calipers and 3030 prop valve should be fine.

 

U have this configuration on your car? It works good?

 

No, but the JDM SiRs came with a 7/8 MC large front EX style brakes (the calipers are identical to Del Sol VTEC calipers actually) 3030 prop valve and rear discs.

 

I really dont know what to do now..
I have 7/8"MC and 3030 prop valve on my car already, but some people says that its ok, another people says i should get 15/16" MC and 4040 pv.
Its start to be annoying...

 

you should save money and leave em as drums.

 

This is not an option in my case now.
I already have buyed the parts , and... i really want this conversion.

So i guess i shoud follow the people who said 15/16" MC and 4040 PV, and see what i get.

 

You need a 15/16 MC and 4040 prop valve if you are running integra front calipers, but in your case you aren't.