SSBC brakes hard pedal hard to stop?
#2166662
10/02/16 08:43 PM
10/02/16 08:43 PM
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Joined: Jan 2004
Posts: 1,468 N.Y.
sixpacksteve
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pro stock
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OP
pro stock
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N.Y.
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brake pedal is right at the top hard as rock, seems i really have to stand on pedal to stop car. is this normal or can i adjust something? ssbc calipers.rear drums
Hell Hath No Fury Like Mine
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Re: SSBC brakes hard pedal hard to stop?
[Re: sixpacksteve]
#2166729
10/02/16 10:48 PM
10/02/16 10:48 PM
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Joined: Jan 2004
Posts: 1,468 N.Y.
sixpacksteve
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manual brakes,new master not sure on diameter. is there any adjusting the porportion valve?
Hell Hath No Fury Like Mine
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Re: SSBC brakes hard pedal hard to stop?
[Re: Sxrxrnr]
#2168047
10/04/16 10:53 PM
10/04/16 10:53 PM
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Joined: Jan 2004
Posts: 1,468 N.Y.
sixpacksteve
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i don;t know size of mc but how does that affect stopping? i have single piston stock calipers on my race dart that runs 10.0's and stops great. now these are after market suppose to be better brakes, and they feel like old shoes that when they get hot there Not stopping. when cold
Hell Hath No Fury Like Mine
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Re: SSBC brakes hard pedal hard to stop?
[Re: moparx]
#2168528
10/05/16 06:19 PM
10/05/16 06:19 PM
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Joined: Jan 2004
Posts: 1,468 N.Y.
sixpacksteve
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i got the process. been doing brakes long time. Not with these after market performance brakes. simple, you apply pressure to the brake caliper it squeezes the rotor and it stops! i've heard from more than a few guys they have same problem. Wilwood etc.. NOT yet fixed. SO why the super hard high pedal and car doesn't slow down? Sorry for rant!
Hell Hath No Fury Like Mine
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Re: SSBC brakes hard pedal hard to stop?
[Re: sixpacksteve]
#2168597
10/05/16 08:30 PM
10/05/16 08:30 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
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About to go away
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up yours
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Last place I would by a disc brake kit from is SSBC. I would either replicate a stock setup with stock parts or go with Dr Diff, AR engineering or similar for bigger than stock brakes. Too many issues, however if you google SSBC issues there is a thread on Dodge Charger.com that might help. http://www.dodgecharger.com/forum/index.php?topic=95452.0
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: SSBC brakes hard pedal hard to stop?
[Re: sixpacksteve]
#2168805
10/06/16 03:05 AM
10/06/16 03:05 AM
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Joined: Feb 2010
Posts: 18,493 Granite Bay CA
Kern Dog
Striving for excellence
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Striving for excellence
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Posts: 18,493
Granite Bay CA
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i got the process. been doing brakes long time. Not with these after market performance brakes. simple, you apply pressure to the brake caliper it squeezes the rotor and it stops! i've heard from more than a few guys they have same problem. Wilwood etc.. NOT yet fixed. SO why the super hard high pedal and car doesn't slow down? Sorry for rant! Great point and your "rant" is surely appropriate. Who the hell swaps in disc brakes so that the car stops worse? What person would do this on purpose? I can see and have personally endured situations where a conversion has been assembled using a bunch of unrelated, non stock parts. Sometimes it all works, sometimes it sucks. The "advantage" of installing a packaged kit from a reputable source is that it comes with the expectation of safe and proper performance. The buyer assumes that the parts are engineered to be a better setup as compared to the stock drum brakes. I'd be pissed if I spent $$$ and the brakes still sucked. Years back, I was running a 292/509 cam in my 440/493 70 Charger. The low vacuum made my low speed braking what could be best described as "LESS than optimal". I thought it would be a good idea to switch to a manual brake master cylinder. HERE is where things went awry... My whole setup was pieced together from various sources. I had the mid 70s style 12" front rotors, the 2.6" single piston front calipers but then a 10.7" rear rotor with a 1.5" rear caliper. I had a few manual brake master cylinders here of different bore sizes. There is no shortage of info online regarding what effect the bore size has on pedal feel but I decided to try things for myself. I tried the biggest bore first, I think it was 1 and 3/16". It was horrible. It felt like the brake pedal travelled hardly an inch and the car felt like skidding tires on wet ice. I tried an 1 1/32" and it felt about the same. The 3rd one was an iron 15/16"unit. It felt okay so I thought I was getting close. I called Dr Diff and he suggested an aluminum 15/16" MC he had in stock. I installed it to find it felt about the same as the iron one of the same size. I started reading here and elsewhere about bore sizes, pedal ratios and such, all in the hope of making a NON power system work for me. I was on a deadline though. I needed he car to be back together for The Spring Fling in Southern CA. I ended up wussing out...I put the power booster and 15/16" setup back on along with a small vacuum can. Some time later, I took a spare brake pedal and drilled the pushrod hole 5/8" higher then welded washers around the hole. This affected the pedal ratio, reducing the pedal effort. Days later, I saw that I had a DISC/DRUM proportioning valve in the car! What ??? All along, I should have been using a drum/drum distribution block. 4 wheel drum AND 4 wheel disc systems traditionally rely on the wheel cylinder or caliper bore sizes to determine the proportioning. The power booster was masking some of the incorrect proportioning so without it, there was simply not enough force. All of the mish-mash and mistakes I've made have at least helped me learn. I suspect that if I tried swapping in the manual MC now, I'd have better luck with it!
Last edited by Frankenduster; 10/06/16 03:08 AM.
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Re: SSBC brakes hard pedal hard to stop?
[Re: sixpacksteve]
#2170315
10/08/16 02:33 PM
10/08/16 02:33 PM
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Joined: Apr 2012
Posts: 59 Florida
Sweet5ltr
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Florida
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Please contact DR. DIFF and let him set you up with one of his master cylinders. I went from a super stiff, ridiculously hard pedal (with a factory bore size); to a firm, smooth pedal with his 15/16" unit. I'm running his Stage 4 'Brembo' kit on the front and Baer's on the rear.
Last edited by Sweet5ltr; 10/08/16 02:38 PM.
1969 Plymouth Road Runner (440 w/ Boost! RIP) now a low-deck 470 with hotchkis suspension, nascar boom tube exhaust, & big brakes.
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Re: SSBC brakes hard pedal hard to stop?
[Re: Sweet5ltr]
#2170432
10/08/16 06:06 PM
10/08/16 06:06 PM
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Joined: Jan 2003
Posts: 26,538 Rio Linda, CA
John_Kunkel
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Rio Linda, CA
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I don't see the MC size as causing a high/hard pedal. I'd be looking at the pushrod length possibly not letting the rear piston in the MC fully return.
The INTERNET, the MISinformation superhighway
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Re: SSBC brakes hard pedal hard to stop?
[Re: Sweet5ltr]
#2170508
10/08/16 07:33 PM
10/08/16 07:33 PM
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Joined: Feb 2010
Posts: 18,493 Granite Bay CA
Kern Dog
Striving for excellence
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Striving for excellence
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
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Please contact DR. DIFF and let him set you up with one of his master cylinders. I went from a super stiff, ridiculously hard pedal (with a factory bore size); to a firm, smooth pedal with his 15/16" unit. I'm running his Stage 4 'Brembo' kit on the front and Baer's on the rear. While I agree that the man knows his stuff and sells quality parts, he cannot make up for a mismatched combination. (IF there is one) The 15/16" MC he sold me made no difference because I had a disc/drum proportioning valve despise running a 4 wheel disc setup. I forgot to change it when adding the rear discs and I didn't think to tell DrDiff when I called him.
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Re: SSBC brakes hard pedal hard to stop?
[Re: sixpacksteve]
#2187861
11/02/16 02:34 AM
11/02/16 02:34 AM
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Joined: Feb 2010
Posts: 18,493 Granite Bay CA
Kern Dog
Striving for excellence
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Striving for excellence
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Posts: 18,493
Granite Bay CA
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Andy, you are SO right! I have been guilty of making cheap ass decisions with brake systems and been very frustrated with poor results. Currently I have a power booster setup that works great. Naturally I want to mess with the success and try a manual setup again... This is for a few reasons: I want to clean up the engine bay. I want to reduce weight and the complexity of the system. I am considering a return to a more radical cam that needs either a manual setup or a vacuum pump that adds even MORE weight and complexity. Finally, I have a buddy with an XV Motorsports X brace that ties the fender aprons to the cowl. It does not clear with this booster in there.
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Re: SSBC brakes hard pedal hard to stop?
[Re: sixpacksteve]
#2208918
12/06/16 08:15 PM
12/06/16 08:15 PM
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Joined: Feb 2004
Posts: 1,020 Howell, Michigan
Hemidavey
super stock
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super stock
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Howell, Michigan
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Ran into same problem with manual SSBC front brakes before. A customer came in who had installed a set, it took both feet to stop this car! We tried various parts, different sized masters, new brake lines and hoses, disassembled prop valve, cleaned, retested still didn't work, tried everything we could find or test. Went through all Feets stuff too. Bought brake pressure test gauges, all good, Ssbc told us there was nothing wrong with their parts. Customer finally gave up, put Baer parts on, car stops like a vette.
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