Re: master cylinder bore size

[Dan McCormack <mcwheels@xxxxxxxxxxxxxx>]

Dave has given you correct information Chris. That's why cars with power 
brakes "usually" have a larger bore MC. Personally I would stick with the 4 
bolt iron MC which is a direct bolt on. The newer 2 bolt style will require 
an adaptor. If you have power brakes now then just ask for a 67 Chrysler MC 
with Power drum brakes. If you have manual brakes then ask for a 67 Chrysler 
MC with manual drum brakes.

Dan

PS I would also ask for a brand new MC. I've not had good luck with rebuilt 
MC's.


----- Original Message ----- 
From: "Dave Casey" <dcasey@xxxxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Tuesday, August 18, 2009 11:49 PM
Subject: Re: master cylinder bore size


> Pressure = Force / Area
> A larger bore means more area, so less hydraulic pressure in the system 
> from the froce of your foot. A bigger bore also means more fluid displaced 
> for a given amount of pedal travel.
>
> In simple terms: a bigger bore master cylinder means you will have a 
> stiffer pedal, but will require more pedal effort than a smaller bore to 
> get the same braking.
>
> Dave Casey
> Sent from my PC
> ----- Original Message ----- 
> From: "c.davis" <pngkid@xxxxxxxxxxx>
> To: <1962to1965mopars@xxxxxxxxxx>
> Sent: Tuesday, August 18, 2009 10:41 PM
> Subject: master cylinder bore size
>
>
> > I am replacing the single pot master in my '65 300L with a dual for drum 
> > brakes. Is bigger better as far as bore size? What about power vs. manual? 
> > Should I swap to a newer style aluminum or stick with the iron 4 bolt?
> >
> > Thanks you guys have always been a fountain of knowledge,
> >
> > Chris in Alabama


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