Rear DISC Conversion Question

[JDM_honda_PIG]

hey, i was reading through some threads a few weeks back and read something about needing some extra components to actually make the ABS functional when doing a rear disc conversion on the 90-91's. i have everything i need for the conversion but, do i need to buy a 92-93 master cylinder or ECU also for the car to recognize the rear discs and, use the ABS? yes i did use SEARCH. any info would be much appreciated, thanks

[C91BLX7]

You have ABS already?

[JDM_honda_PIG]

You have ABS already?

i don't believe that the 90-91 LX's do. do they? thats kinda what i'm trying to figure out, how to get it hooked up...

[C91BLX7]

i don't believe that the 90-91 LX's do. do they? thats kinda what i'm trying to figure out, how to get it hooked up...

Well if you don't have abs, don't worry about abs.


Get the rear discs and a DA teg 40/40 prop valve and your done.

[JDM_honda_PIG]

Well if you don't have abs, don't worry about abs.


Get the rear discs and a DA teg 40/40 prop valve and your done.

AWESOME! can i get one of those pretty cheap? and if anyone has a picture, could ya post one up plz??? ty

[CB7Man]

Go to a junkyard and find a 90-93 Integra LS
Next take the proportioning valve off
On the Integra, its located on the passenger side shock tower. (right above the tranny) It has all the brake lines going into it.
The Accord Valve is underneith the Master Cylinder. It looks exactly the same.
Now the mount setup for the Integra valve is different that the Accords.
Honda is *** and uses de-threading screws on the valve (this means it destroys the threads so you cant put it back together.) I got it re-threaded and the accord mount swapped onto it.
Valve was $15 replacing the mount was $35

Another thing you might consider is the ABS Master cylinder.
Go to the junkyard and find a 91SE or 92-93 Accord EX
Take the Brake Booster off of one of those.(big round thing)
BUY A NEW MASTER CYLINDER for 91SE or 92-93 EX (Same part)

You CANNOT use your LX Brake booster or youll end up like me.
The DX/LX Brake booster "shaft" is shorter than the SE/EX, therfor 1/2 of my brake pedal travel is spent doing nothing. Then it hits the M/S and WOW what power it has! Even from what little room I can push it.
You have to get a special brake line made to fit the ABS M/S
The rear fitting is larger (but the hose it the same size) So take a DX/LX rear hose, cut a rear M/S Brake line fitting off of a 92-97 Accord EX ABS.
Get the fitting put onto the DX/LX brake line and re-flared (this cost me $12 brake line and flare labor)
Master Cylinder was $165 from Dealer
Brake Booster was $25 from JY

Whew! try and understand that!

[evil_demon_01]

The OP needs to work out weather he has ABS or not first.

[CB7Man]

He wants to do a rear disc conversion
He doesnt have ABS lol
But I dont think the OP kinda knows whats involved

All I can say is if you REALLY BADLY WANT ABS
Buy an ABS equipped CB7
a 91 SE has no air bags but has ABS