Notices
Tech / Misc Tech topics that don't seem to go elsewhere.

Adjustable brake proportioning valve Q's

Thread Tools
 
Search this Thread
 
Old 10-08-2002, 04:44 AM
  #1  
Thread Starter
 
Civic1992DX's Avatar
 
Join Date: May 2002
Location: Burlington, NJ, USA
Posts: 191
Likes: 0
Received 0 Likes on 0 Posts
Default Adjustable brake proportioning valve Q's

I have 11" Fastbrakes Front Kit w/Drum Brakes in the rear on my EG 4-dr. Because of that setup, my fronts are very easy to lock up, especially in the wet. In the other words, I have a heavy front biased brakes. Since I CAN'T afford the rear disk brake swap, it seems logical to install the adjustable brake proportioning valve & get the brake force distributed more to my liking. Here's some links:
http://www.jegs.com/cgi-bin/ncommerc...78&prmenbr=361
http://store.summitracing.com/defaul...rchType%3DBoth
Has anyone TRIED it? How difficult is it to adapt the valve to Honda's brake lines? How's the threads?
I'd greatly appreciate any knowledgable replies!!!
Thanx in advance,
Yuri K
Old 10-08-2002, 01:40 PM
  #2  
Junior Member
 
fastbrakes's Avatar
 
Join Date: Mar 2001
Location: Phoenix, AZ, usa
Posts: 607
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Adjustable brake proportioning valve Q's (Civic1992DX)

Based upon what you stated I suspect the adjustable valves won't really help you. The proportioning is probably not the problem, rather a lack of traction under the full load conditions. Unless the tires are up to the task of maintaining the friction levels necessary to grip the road under those conditions, the tires will always slide.
Old 10-08-2002, 04:56 PM
  #3  
Honda-Tech Member
 
CXHatchback's Avatar
 
Join Date: Sep 2002
Location: SOFLA
Posts: 1,595
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Adjustable brake proportioning valve Q's (fastbrakes)

damn, I had no idea they were so cheap
Old 10-08-2002, 06:11 PM
  #4  
Thread Starter
 
Civic1992DX's Avatar
 
Join Date: May 2002
Location: Burlington, NJ, USA
Posts: 191
Likes: 0
Received 0 Likes on 0 Posts
Default To: fastbrakes (Brian H)

Brian, your front kit is awesome! Just because of the larger calipers in the front + larger rotor diameter even with the same master cylinder & proportioning valve Front brakes are much stronger. This just emphisizes how weak the drum brakes are in the rear.
Tires: 205/50R15 Pirelli 7000 mounted on 11lbs rims. They have around 5k miles. Spring rates: 380F, 250R, therefore the car doesn't have any noticable dive under the braking, especially with Bilstein shocks.
So, I don't think it's the tires that create the problem. Because the front brakes have so much clamping force then the rears, I need to limit the flow of the brake fluid to the fronts with adjustable proportioning valve. The flow to the rear brakes would be untouched. The PROBLEM IS (pintointed by Mista Bone!) that the front flow is split in two, meaning that I'd need 2 proportioning valves. Now, how possible is it to adjust the flow to the LEFT & RIGHT brakes? Some tandem proportioning valve? ANy ideas? Is this the first time someone thought of this?
Thanx, fellows!
Yuri K
Old 10-09-2002, 11:05 AM
  #5  
New User
 
PyroVTEC's Avatar
 
Join Date: Apr 2001
Location: LA, CA
Posts: 549
Likes: 0
Received 0 Likes on 0 Posts
Default Re: To: fastbrakes (Civic1992DX)

I'm with you on this... I have the same kit on my EJ Civic. I've been interested in getting the prop valve too, but haven't a clue who would know how to put one(or two?) in! Brakes are one thing I just won't touch anymore (save for changing pads).

Anyone have any ideas? Help us!
Old 10-09-2002, 01:35 PM
  #6  
Honda-Tech Member
 
eg6madness's Avatar
 
Join Date: Apr 2002
Posts: 694
Likes: 0
Received 0 Likes on 0 Posts
Default Re: To: fastbrakes (PyroVTEC)

Ok guys here ya go :-

Honda manufactures setup up their brake system ( the diagonal system ) so that if one line fails there will still be front and rear pressure .
what i did was to route the front line together tru the stock proportional valve (top)and block off the other lines ( tap and plug ) .

Then run the rear line that comes from the master cylinder ( i bought new line and bent it to my specs ) tru the aftermarket proportional valve and from there the out line "Ts" off to each rear wheel .

the car should be driven fairly slowly to feel in the brakes then adjust the bias (rear wheel bias) to your needs . mine is set a little more to the rear so that i can approach a corner and brake and the back steps out of line a little .

I got help doin this from an engineer from one of the Rally teams here , so he knows his stuff .
Old 10-09-2002, 01:42 PM
  #7  
Thread Starter
 
Civic1992DX's Avatar
 
Join Date: May 2002
Location: Burlington, NJ, USA
Posts: 191
Likes: 0
Received 0 Likes on 0 Posts
Default Re: To: fastbrakes (eg6madness)

That's EXACTLY what I wanted to do! Thanx a lot, EG6madness!!!
Thanx to everyone who participated in beating this to death!
Yuri K
Old 10-11-2002, 03:19 AM
  #8  
D Tranny Guru
 
Mista Bone's Avatar
 
Join Date: Oct 2001
Location: Cincity, OH, USA
Posts: 8,725
Received 5 Likes on 5 Posts
Default Re: To: fastbrakes (Civic1992DX)

cliff notes,

convert from diagonal system to F/R system.

Simple, cheap, EFFECTIVE.
Old 10-11-2002, 10:14 AM
  #9  
Honda-Tech Member
 
eg6madness's Avatar
 
Join Date: Apr 2002
Posts: 694
Likes: 0
Received 0 Likes on 0 Posts
Default Re: To: fastbrakes (Mista Bone)

Thanks alot guys !
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
brose95civ
Honda Civic / Del Sol (1992 - 2000)
5
09-25-2017 04:15 PM
falz
Suspension & Brakes
1
04-18-2016 02:47 PM
J_24
Drag Racing
16
03-02-2015 12:30 PM
Civic1992DX
Road Racing / Autocross & Time Attack
17
12-24-2003 05:56 PM
LL
Honda Civic / Del Sol (1992 - 2000)
8
07-23-2001 04:07 PM



Quick Reply: Adjustable brake proportioning valve Q's



All times are GMT -8. The time now is 10:30 AM.