I want to convert my 89 crx si into 4 wheel disc.I want to know if i can used 94 teg rear disc or i need to used only 90-93 teg rear disc.Can I used my stock booster with a 90-91 civic ex master cylinder and do i need to get a brake proportioning valve 35/40.

 

Dude just get rear disk brakes from another CRX SI (90-91) I believe. and maybe a 40/40 porp valve

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxturbo585 &raquo;</TD></TR><TR><TD CLASS="quote">I want to convert my 89 crx si into 4 wheel disc.I want to know if i can used 94 teg rear disc or i need to used only 90-93 teg rear disc.</TD></TR></TABLE>
You can use the rear disc brakes from any '90-01 Integra or any '88-00 Civic/CRX/del Sol.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Can I used my stock booster with a 90-91 civic ex master cylinder</TD></TR></TABLE>
Yes, but it is unecessary to change the master cylinder unless you are upsizing the front brake caliper pistons.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">and do i need to get a brake proportioning valve 35/40.</TD></TR></TABLE>
If you have the stock '88-89 CRX Si/DX front brakes, then the correct proportioning valve for your application is a 3040 from a '92-95 Civic Si hatchback. The 3540 ('90-91 EX) and the 4040 ('90-93 Integra) are not the correct valves for that particular front/rear combo.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">If you have the stock '88-89 CRX Si/DX front brakes, then the correct proportioning valve for your application is a 3040 from a '92-95 Civic Si hatchback. </TD></TR></TABLE>

just to be clear, EG Si's came with rear disc? and the front calipers were the same as the rest of the lineup? so then if thats true, then yeah, it would seem to match a 88-89 Si with rear discs.

was it only the hatchback of all EG's that came with rear discs?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">just to be clear, EG Si's came with rear disc?</TD></TR></TABLE>
All '92-95 EH3 Si hatchbacks had 9.4" solid rear discs with 7CLP13S calipers.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">and the front calipers were the same as the rest of the lineup?</TD></TR></TABLE>
Yes, '92-95 EH3 Si (non-ABS) hatchbacks used the same small calipers and 9.5" vented rotors as the CX, VX, and DX hatchbacks. The exception is the '94 Si-ABS model which had 10.3" vented front rotors with 17CL14VN calipers.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">so then if thats true, then yeah, it would seem to match a 88-89 Si with rear discs.</TD></TR></TABLE>
My thoughts exactly.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">was it only the hatchback of all EG's that came with rear discs?</TD></TR></TABLE>
All '92-95 Civics with ABS had rear discs ('92-95 EX-ABS 4dr, '94 Si-ABS 3dr, '94-95 EX-ABS 2dr, '94-95 LX-ABS 4dr), and all '92-95 Si 3dr Civics (non-ABS) had rear discs. All the rest had drums out back.

 

https://honda-tech.com/zerothread/1508680