2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Clean & Simple ABS removal

Thread Tools
 
Search this Thread
 
Old Jan 17, 2011 | 11:01 AM
  #26  
inboost's Avatar
Thread Starter
Full Member
Tenured Member 15 Years
 
Joined: Jul 2002
Posts: 166
Likes: 0
From: Orange County, CA
Originally Posted by inboost
At threshold-'plus' breaking the car seemed to get pretty light in the rear and wanted to come around, but this is to be expected. It was easy to control and I suspect a non-ABS RX would duplicate this. As a side note, the proportioning valve for either car has the same part number in 1989, so I did not replace this for this project, nor will I in the future.
In the end the rear bias proved to be too much. I did remove the factory proportioning valve and replaced it with a Tilton adjustable biasing valve. It required a lot of front bias to overcome the cars tendency to lock the rears. Please be careful out there and remember to test your modifications thoroughly and in as many varied conditions as you expect to drive in (wet/snow/etc.)
Reply
Old Jan 17, 2011 | 02:13 PM
  #27  
StevenL5975's Avatar
Vintage sportcars
Tenured Member 05 Years
 
Joined: Jun 2010
Posts: 348
Likes: 1
From: Germany
+1 For removing the ABS.

I crashed 2 times in a nissan due to the ABS engaging in a lift-of-oversteer situation.
While sliding, I floored the brake pedal, instead of slowing down, it went with the nose straight forward into the railguards.

The moment when I floored the brake pedal the control of the vehicle was "lost" so
it was the last choice to make. Countersteering could not stabilize the car.

Generally I have the feeling that people driving cars without ABS have a more sensitive
braking foot. If you dont upset the balance of the car you can even brake very well
in corners.

I am happy my 7 has no ABS.

Regards
Steven

Last edited by StevenL5975; Jan 17, 2011 at 02:14 PM. Reason: typo
Reply
Old Jan 17, 2011 | 02:28 PM
  #28  
Bamato's Avatar
S5 T2
iTrader: (6)
 
Joined: Jun 2010
Posts: 948
Likes: 0
From: Mesa, AZ
Did I read all the dates on this threads posts correctly? lol

But to add, I'd like to mention, ABS is your friend when driving in the rain
Reply
Old Jan 17, 2011 | 07:28 PM
  #29  
sharingan 19's Avatar
Rotary Revolutionary
Tenured Member 15 Years
iTrader: (16)
 
Joined: May 2006
Posts: 3,881
Likes: 3
From: Jacksonville, Tampa & Tallahassee
Originally Posted by Bamato
Did I read all the dates on this threads posts correctly? lol

But to add, I'd like to mention, ABS is your friend when driving in the rain
Yes you did.... I used this thread when I removed my abs like 3-4 years ago.

Correction: "But to add, I'd like to mention, properly working non-leaking, ABS is your friend when driving in the rain "
Reply
Old Jan 18, 2011 | 10:02 AM
  #30  
Bamato's Avatar
S5 T2
iTrader: (6)
 
Joined: Jun 2010
Posts: 948
Likes: 0
From: Mesa, AZ
^^Aha! Good point
Reply
Old Jan 18, 2011 | 11:35 AM
  #31  
No_love_for_pistons's Avatar
Parts collector
Tenured Member: 15 Years
iTrader: (4)
 
Joined: Jan 2008
Posts: 657
Likes: 2
From: Dallas
Originally Posted by Bamato
Did I read all the dates on this threads posts correctly? lol
You did. I PM'd the OP as I am in the process of removing my ABS system due to a leaking pump. I'll be sure to add any relevant pics and info to this thread as soon as I am finished with the conversion.

One question though...I have a 88 T2 with the 4-piston front calipers. If I am replacing the ABS master with a non-ABS master cylinder, does the proportioning valve need to be replaced? I thought there was no difference between the ABS and non-ABS proportioning valves, but I am having trouble verifying this.
Reply
Old Apr 19, 2011 | 10:46 AM
  #32  
No_love_for_pistons's Avatar
Parts collector
Tenured Member: 15 Years
iTrader: (4)
 
Joined: Jan 2008
Posts: 657
Likes: 2
From: Dallas
I had excellent success following this writeup!! I tried to document the process as best as I could in my thread ABS pump removal with pics. I feel the brake system is not an area to cut corners on, especially when removing a safety feature like ABS. While I wasn't able to keep the whole project below $100, I find the braking much firmer and stronger than before.

Many thanks to OP for providing part numbers and guidance on removing the ABS system!! This was the most helpful thread I found on converting to a non-ABS system.
Reply
Old Apr 27, 2011 | 01:18 AM
  #33  
s30z's Avatar
Junior Member
Tenured Member 05 Years
 
Joined: Feb 2005
Posts: 18
Likes: 0
From: Vancouver BC
Nice write up, i need it to do mine soon
Reply
Old Feb 18, 2017 | 12:15 PM
  #34  
mansouge's Avatar
Newbie
 
Joined: May 2016
Posts: 3
Likes: 0
From: Haymarket VA
Could you please post another pic of your master cylinder set up. Im halfway through mine now and I am completely stumped
Reply
Old Feb 18, 2017 | 04:45 PM
  #35  
rx7racerca's Avatar
Rotary Freak
Tenured Member: 20 Years
Liked
iTrader: (1)
 
Joined: Jul 2004
Posts: 1,725
Likes: 8
From: Lake Country, BC, Canada
Given the fact the thread started 14 years ago, I wouldn't hold your breath on the OP posting photos.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Th0m4s
Build Threads
25
Feb 26, 2019 02:04 AM




All times are GMT -5. The time now is 03:48 AM.