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Thread: Bias Bar vs. Prop Valve
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12-06-2004 #1Registered User
- Join Date
- Aug 2004
- Location
- Pittsburgh, PA
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- 316
Bias Bar vs. Prop Valve
Hey guys,
I have finally decided on my first brake upgrade for my Camaro.
I will be running a Touring Classics 12" C4 style rear kit. For the front I will be upgrading my front calipers to the Dual piston D52 replacement calipers from Stainless Steel Brakes. I have already done the B-body spindle swap so that gives me 12" front rotors also. The SSBC dual piston calipers have the same bore as the C4 PBR calipers.
So essentially I will have C4 calipers all around. I have decided the brakes will be unboosted.
Now for the real question:
What are the pros/cons of using a setup like this:
http://cncbrakes.com/cncbrakes.com-a...240&subseries=
Versus a traditional tandem master cylinder with a proportioning valve. Which is a better setup functionally as far as ease of use etc? From a selection point of vew there are far more MC possibilities with the balance bar type arrangement. Is there any advantage to mechanically adjusting the engagement of individual masters vs the restriction of fluid to the rear brakes?
Also in light of seeing David Pozzi's update to the "Cheap Big Brakes" thread, are we running ourselves out of the OEM style master cylinder possibilities by trying to run these small bore calipers without any assist??? It seems to me that we just cant find small enough OEM MCs to run on our cars.
Thanks for the help (my brain hurts),
Shane
P.S. David if you read this, what are you running on the rear of your wifes car??? I also have a very specific question regarding what you found as far as pushrod holes on the pedal of your wifes car.
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12-08-2004 #2Registered User- Join Date
- Aug 2004
- Location
- Pittsburgh, PA
- Posts
- 316
JMC Motorsports
Well guys,
I talked with JMC Motorsports today. They have a kit as shown above available with the GM MC mounting pattern and they recommended 3/4" MCs for front & rear both. They say there is enough adjustment in the bias bar to sufficiently proportion front to rear.
The only thing left to determine is hardware needed to attach to the stock pedal and making a reinforcement plate for the firewall. I will be collecting & fabricating parts over the winter and installing in the spring.
Shane
12-09-2004 #3