Which master cylinder is best for Disc/Disc??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

c10seconds · 04-16-2010, 01:56 AM

Which master cylinder/proportioning valve are you guys using with your four wheel disc brakes???

skeeterbug · 04-16-2010, 08:10 AM

im glad you asked that question, im in need of the same info only booster,prop valve and mastercylinder

*Shane* · 04-16-2010, 10:21 AM

i'm using a '70's model Corvette master cylinder with an aftermarket disc/disc prop valve

**N2TRUX** · 04-16-2010, 10:31 AM

Quote:

Originally Posted by Shane

i'm using a '70's model Corvette master cylinder with an aftermarket disc/disc prop valve

What brand prop valve, and is it adjustable?

cdowns · 04-16-2010, 01:01 PM

i'd look into a late model silverado master and booster and prop valve setup if i ever went to 4wheel disc on an old truck

*Shane* · 04-17-2010, 12:22 AM

Quote:

Originally Posted by N2TRUX

What brand prop valve, and is it adjustable?

CPP ... non adjustable.

*mickeymouse* · 04-17-2010, 06:35 PM

Gents, it's not the Master Cyl, but the proportioning valve that makes the difference.

Drum brakes require 8psi of residual pressure to keep the shoes out. The prop valve has a check in it to keep that 8lbs.

Disk brakes don't need as much.

Heck, some folks take a drum prop valve, remove the check valve from the rear circuit and run what they own.

I've done that on a few occasions.

mbgmike · 04-17-2010, 07:13 PM

We offer the same setup for less the Corvette MC's run $39.00 plus add the kit below for $70.00

http://estore.websitepros.com/126980...ASS/Detail.bok

Ours are warranteed for life and you have a two year return on it if not used

picture is kind of bad. its a right side mount but we offer them in left side and bottom. aluminum and chrome plated brass

**nlped** · 04-16-2010, 05:55 PM

I spoke with Jeff @ CPP, and he recommended there part #mcpvs-4 for this specific application. It's the M/C and the disc/disc proportioning valve together.

weekendracer728 · 04-20-2010, 09:47 PM

I heard a lot of guys are running a m/c off a chevy monza. It has a 7/8 bore so you dont need to run a booster.

skeeterbug · 04-25-2010, 10:33 PM

shane are you running a booster, if so what size and is it a single or dual diaphram?

*Shane* · 04-26-2010, 08:56 AM

I am running a stock truck booster on stock brackets ... 'Vette m/c bolts right up.

04-16-2010, 01:56 AM	#1
c10seconds Registered User Join Date: Oct 2009 Location: gilbert,AZ Posts: 947	Which master cylinder is best for Disc/Disc??? Which master cylinder/proportioning valve are you guys using with your four wheel disc brakes???

04-16-2010, 08:10 AM	#2
skeeterbug Registered User Join Date: Jul 2009 Location: watertown, tn Posts: 332	Re: Which master cylinder is best for Disc/Disc??? im glad you asked that question, im in need of the same info only booster,prop valve and mastercylinder __________________ '71 LWB c10-"WORK" in progress 385 ci 4 bolt (4.040 bore), scat 6.0" forged h beams,scat forged crank 3.750, speed pro 5cc flat top, clevite bearings, .039 head gaskets,comp xr288hr 110* 288/294adv. 236/242@.50 555/576 lift, pbm hyd roller lifters, chad spiers 215cc imp. heads , comp 1.6 roler rockers, comp magnum push rods, edelbrock victor jr. single plane intake p&p (1206 gasket matched), quickfuel 750R DP , th 350 trans, 5.14 gear, 3000 stall 2012 best 1/8- 7.70 @ 87mph 1.70 60' (lil better) 2013 best 7.39 2014 best-7.38 New for 2013-strange rear coilovers, headman 1-3/4 headers, 5.13 r&p, .060 aluminum bed floor, 15x14 holeshots w/ 31x18.5 hoosier dot pro's, 15x4 holeshots w/ 26x5.5 m/t skinnies and 200+#'s in body weight loss & 6 point cage

04-16-2010, 10:21 AM	#3
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: Which master cylinder is best for Disc/Disc??? i'm using a '70's model Corvette master cylinder with an aftermarket disc/disc prop valve

04-16-2010, 01:01 PM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Which master cylinder is best for Disc/Disc??? i'd look into a late model silverado master and booster and prop valve setup if i ever went to 4wheel disc on an old truck __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

04-17-2010, 06:35 PM	#7
mickeymouse Account Suspended Join Date: Nov 2005 Location: Where ever the Navy sends me. Posts: 116	Re: Which master cylinder is best for Disc/Disc??? Gents, it's not the Master Cyl, but the proportioning valve that makes the difference. Drum brakes require 8psi of residual pressure to keep the shoes out. The prop valve has a check in it to keep that 8lbs. Disk brakes don't need as much. Heck, some folks take a drum prop valve, remove the check valve from the rear circuit and run what they own. I've done that on a few occasions.

04-17-2010, 07:13 PM	#8
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: Which master cylinder is best for Disc/Disc??? We offer the same setup for less the Corvette MC's run $39.00 plus add the kit below for $70.00 http://estore.websitepros.com/126980...ASS/Detail.bok Ours are warranteed for life and you have a two year return on it if not used picture is kind of bad. its a right side mount but we offer them in left side and bottom. aluminum and chrome plated brass Attached Images Last edited by mbgmike; 04-17-2010 at 07:17 PM.

04-16-2010, 05:55 PM	#9
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: Which master cylinder is best for Disc/Disc??? I spoke with Jeff @ CPP, and he recommended there part #mcpvs-4 for this specific application. It's the M/C and the disc/disc proportioning valve together. __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

04-20-2010, 09:47 PM	#10
weekendracer728 Registered User Join Date: Aug 2009 Location: New Prague, MN Posts: 103	Re: Which master cylinder is best for Disc/Disc??? I heard a lot of guys are running a m/c off a chevy monza. It has a 7/8 bore so you dont need to run a booster.

04-25-2010, 10:33 PM	#11
skeeterbug Registered User Join Date: Jul 2009 Location: watertown, tn Posts: 332	Re: Which master cylinder is best for Disc/Disc??? shane are you running a booster, if so what size and is it a single or dual diaphram? __________________ '71 LWB c10-"WORK" in progress 385 ci 4 bolt (4.040 bore), scat 6.0" forged h beams,scat forged crank 3.750, speed pro 5cc flat top, clevite bearings, .039 head gaskets,comp xr288hr 110* 288/294adv. 236/242@.50 555/576 lift, pbm hyd roller lifters, chad spiers 215cc imp. heads , comp 1.6 roler rockers, comp magnum push rods, edelbrock victor jr. single plane intake p&p (1206 gasket matched), quickfuel 750R DP , th 350 trans, 5.14 gear, 3000 stall 2012 best 1/8- 7.70 @ 87mph 1.70 60' (lil better) 2013 best 7.39 2014 best-7.38 New for 2013-strange rear coilovers, headman 1-3/4 headers, 5.13 r&p, .060 aluminum bed floor, 15x14 holeshots w/ 31x18.5 hoosier dot pro's, 15x4 holeshots w/ 26x5.5 m/t skinnies and 200+#'s in body weight loss & 6 point cage

04-26-2010, 08:56 AM	#12
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: Which master cylinder is best for Disc/Disc??? I am running a stock truck booster on stock brackets ... 'Vette m/c bolts right up.

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