Re: where did you put your proportioning valve?
[Re: lockjaw-express]
#2447432
02/06/18 04:13 PM
02/06/18 04:13 PM
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Joined: Aug 2003
Posts: 43,715 Bend,OR USA
Cab_Burge
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I Win
Joined: Aug 2003
Posts: 43,715
Bend,OR USA
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If the M.C. is above the highest point on the brakes like a stock Mopar has then the residual valve maintains pressures on the pads not letting them retract all the way, no need for the valve on disc. in my opinion I installed a SSBC front disc kit on my 1955 Dodge Coronet and used a later model Mopar brand aluminum dual piston M.C. for a later car that had disc brake application that I assumed that the residual valve was not there, it was and when I would push the car out of the shop into the sun the change in brake fluid temp. would make the car harder to push back, untightening the front brake line cured that when it burped fluid out of the fitting I'm building a 1940 Ford Tudor sedan with 4 wheel disc with the M.C. mounted under the floors and I used the Wilwood 3 lbs. residual valves in both lines to avoid allowing the fluid to drain back into the M.C. over filling it and making me have to pump the brakes to stop
Last edited by Cab_Burge; 02/06/18 11:59 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: where did you put your proportioning valve?
[Re: Dragula]
#2447781
02/07/18 12:10 AM
02/07/18 12:10 AM
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Joined: May 2003
Posts: 13,226 aZLiViN
J_BODY
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OP
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Threw it out....Neither of my cars has one.... never ever? all in know is that with Wilwood/drum combo and "nothing" I'm eating up real estate getting my junk stopped, and my 3rd set of front rotors should be here tomorrow. The thought crossed my mind to simply install the rear discs (Strange) and see how things go, but I'll most likely throw the valve on.
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Re: where did you put your proportioning valve?
[Re: J_BODY]
#2447858
02/07/18 02:52 AM
02/07/18 02:52 AM
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Joined: Feb 2011
Posts: 1,454 Glendora Ca.
Just-a-dart
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pro stock
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
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where did you put your proportioning valve?
In a box on the garage shelf. Bias seems good with Wilwood 4 wheel disc on my junk. I would try it first.
Last edited by Just-a-dart; 02/07/18 02:53 AM.
"Just a Bracket car dressed up like a streetcar"
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Re: where did you put your proportioning valve?
[Re: J_BODY]
#2447902
02/07/18 08:43 AM
02/07/18 08:43 AM
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Joined: May 2004
Posts: 12,476 Taxes & Virus's R-US, NY
Dragula
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I Live Here
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Threw it out....Neither of my cars has one.... never ever? all in know is that with Wilwood/drum combo and "nothing" I'm eating up real estate getting my junk stopped, and my 3rd set of front rotors should be here tomorrow. The thought crossed my mind to simply install the rear discs (Strange) and see how things go, but I'll most likely throw the valve on. Both cars are big tires pro-street types with Willwoods on all four corners....My chassis guy said to throw it out...So I did...That was many years ago...Sure simplifies the Line Line plumbing.
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Re: where did you put your proportioning valve?
[Re: J_BODY]
#2447922
02/07/18 11:11 AM
02/07/18 11:11 AM
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Joined: May 2003
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J_BODY
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Can't say that I don't agree with the "splice just makes one more place to leak" theory I've read the MW manifesto Doug. That was linked on another rear brake discussion quite awhile back. I "kind of" thought the rear drums should work for my deal, but like I stated earlier, since getting the W8 mill running we've been killing front rotors a lot sooner than I prefer. I was also a little leary of the "skid test" you noted, although it probably falls into the better than nothing bin. I'm running the Wilwood 150-8850K pads "Wilwood Smart Pad BP-10 brake pads feature a medium-friction compound with the low noise and low dust of a street performance compound, plus the increased friction characteristics of a semi-metallic race compound. They have smooth engagement, with consistent response from a flat torque curve throughout their entire effective temperature range. These pads have good low-to-middle temperature wear rates and they bed quickly and provide a fast response without excessive abrasion on vented iron rotors. They are ideal for a variety of high performance street/strip, drag race, and track-day categories using vented iron rotors. They also provide light-to-medium braking on dirt tracks, including late models, Modifieds, sportsman, and street stocks" my new front rotors (solid, not slotted) should be here today, and I stock pads for them now (another lesson learned) so maybe we'll try it without the valve and see how it goes.
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Re: where did you put your proportioning valve?
[Re: J_BODY]
#2447986
02/07/18 01:29 PM
02/07/18 01:29 PM
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Joined: Jan 2003
Posts: 19,537 Las Vegas
Al_Alguire
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With the correct pedal ratio and master cylinder you should not need an adjustable proportioning valve. I have not had one on a car in YEARS. To include the RJ car in the garage with Carbon Brakes.
IMO the Wilwood pads are part of the issue IMO. We switched to Hawk pads and have never looked back.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: where did you put your proportioning valve?
[Re: AndyF]
#2448031
02/07/18 03:16 PM
02/07/18 03:16 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
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master
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bean town ....Ca
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Jay the big tires go in the back.. ... I do not have a valve on my car...
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: where did you put your proportioning valve?
[Re: Just-a-dart]
#2448053
02/07/18 03:51 PM
02/07/18 03:51 PM
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Joined: Jan 2003
Posts: 10,081 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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where did you put your proportioning valve?
In a box on the garage shelf. Bias seems good with Wilwood 4 wheel disc on my junk. I would try it first. Same brakes, same results.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: where did you put your proportioning valve?
[Re: J_BODY]
#2448092
02/07/18 05:27 PM
02/07/18 05:27 PM
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Joined: Dec 2005
Posts: 12,289 Fulton County, PA
CMcAllister
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Mr. Helpful
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Fulton County, PA
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So...some think it goes on the front, some think it goes on the rear, some are having trouble stopping their car and want to reduce braking one end or the other to fix it.
Big tires on the back, skinnies up front, you can't have the fronts doing the majority of the work. That will wreck you.
How many door cars are out there with 2 little calipers up front and 4 four piston calipers on back? They aren't out there spinning around in circles in the lights.
Which port of your MC delivers the highest volume or are they equal? You need to know.
I've seen Wilwood calipers that look like other company's parts, but the bores are substantially smaller. They will not work the same. What size are the bores of your calipers?
If the results don't match the theory, change the theory.
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