• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Distribution Block Setup

dodge68charger

Well-Known Member
Local time
12:44 PM
Joined
Feb 6, 2012
Messages
1,230
Reaction score
81
Location
Washington
image.jpeg
i Converted My 68 charger To a Disc/Disc Setup From Wilwood..

Just Wondering Ig The Stock Distribution Block Will Work And How Do The Ports Direct Flow?
I Plumbed In a Proportion Valve To The Line To The Rear.

-Bottom Left Line To Rear Brakes.

-Top Left Line To Front Passenger Side Brake Caliper.

-Top Right Line To Master Cylinder Rear Brake Resevoir
(Smaller Resevoir)

-Bottom Right Line To Drivers Side Brake Caliper

Top Middle To Front Resevoir
Of Master Cylinder
(Larger Resevoir)

Does This Sound Right??

Thanks
 
I thought you only need a prop valve with disc/drum setup and not disc/disc.
 
You still need a front /rear bias (from what I've read...and installed).

c3tk8.jpg
 
I Had Drums On The Back n Changed Them To Disc.. Cars Never Been Driven Yet..

I ll keep it open.
 
You still need a front /rear bias (from what I've read...and installed).

View attachment 552275
It looks like the valve in the diagram has a built in prop valve as opposed to the plain distribution block with a prop valve plumbed into the rear brake line after the dist block that the OP described.
 
Something doesn't look right. Top right is inlet from master for rear brakes and outlet to rear brakes is on the bottom on the opposite side? Top right should be to driver's side caliper.
On disc/disc master reservoir be the same size? Don't for sure but... The description of master doesn't sound right, thought larger reservoir was in the rear for front brakes? Any pics of master?
 
It looks like the valve in the diagram has a built in prop valve as opposed to the plain distribution block with a prop valve plumbed into the rear brake line after the dist block that the OP described.
I think distribution block/prop valve are terms that are used interchangably, in this case I believe the ops pic is truely an a automatic prop valve by the presence of the brake warning switch.
I also agree with Fran something looks off...feed should come in the end split across the front with a single rear outlet..
Is a there a manual prop valve installed at the rear? I guess I misunderstood. It should not be needed with the automatic.

IMG_6163.jpg
 
Disc/disc setup is a can of worms. You shouldn't need a prop valve if the piston area is correctly balanced from front to rear. If you don't know what that means then there is a good chance you didn't get the proper balance unless you just happened to luck into it.

The proper balance of front to rear braking depends on the weight distribution of the car (and the height of the center of gravity). If you get the front to rear balance wrong then you'll have lock up at either the front or the rear, neither which is really good.

You can use a prop valve as a crutch if the balance is wrong but it is better to get the balance close and then maybe use the prop valve as a tweak.

You don't need the distribution block at all on a race car. You might want to keep it on a street car if it has the safety switch in it which tells you that one of the circuits isn't working. If you get rid of the distribution block you can just plumb the front brakes direct to the master cylinder and the rears to the master cylinder thru the prop valve.
 
Should I Return My Disc/Drum Master Cylinder From Wilwood where The Front Reservoir Is Bigger Than The Rear And Get a Disc/Disc Master Cylinder Where The reservoirs Are The Same Size?
 
I bought the Baer Remaster for my disc/disc set up on my 69 Charger. Works much better than the disc/drum master I had.

26D7FD3F-BF8C-4D1C-91EC-F36C04918DEC.jpeg
 
Personally I would....brakes are usually one of the biggest pita, but it's also the most important. So having components that are made for what your are doing is probably a wise idea.
Use the resources available, call Wilwood, Baer or SBBC and talk to them about your design and what you need to make it safe. They are the experts!
Good luck and Merry Christmas!!!
 
Thank You. I Will Call Wilwood This Week And Determine The Proper Bore Size Master Cylinder
 
Auto Transport Service
Back
Top