Listmates, Just remember, a small master cylinder bore will result in less
pedal pressure. And yes, it sounds counter intuitive but it is correct. Get
over it. The ONLY reason to use a larger bore master cylinder is if you need
to move a greater volume of fluid. For example, if your master cylinder piston
bottoms out. My suggestion is to all who read this -- start with a 5/8" master
cylinder and only go up in size if you need to move more fuid to makes things
work properly. Remember, bigger bore size means more pedal pressure! Richard
Mayor
> From: jkrowe46@bigpond.net.au
> To: pieters@pt.lu
> Date: Fri, 18 Dec 2009 06:33:56 +1000
> CC: healeys@autox.team.net
> Subject: Re: [Healeys] Dual Brake System
>
> Hi Pieter
> I also had a 1"master cylinder on the BN1 with BJ8 front discs (though not
> tandem system) and had a hard pedal even with a PBR VH44 booster. Not a
good
> feeling. Went to 7/8" and now works well
>
> John Rowe Qld Australia
> BN1 BT7
>
> -----Original Message-----
> From: healeys-bounces@autox.team.net
[mailto:healeys-bounces@autox.team.net]
> On Behalf Of Pieter and Linda
> Sent: Friday, 18 December 2009 1:47 AM
> To: Alan Seigrist
> Cc: Healey Mailing List
> Subject: Re: [Healeys] Dual Brake System
>
> I have the wilwood 1" bore tandem master cylinder in my BJ7 combined
> with four pot front calipers and rear discs. It is a straight bolt in
> fit and easy to plumb but the pedal pressure is high. I would recomend
> a 7/8 bore. I am fitting a tandem brake booster over the winter so we
> will see what the pedal pressure is like then,
> cheers
> Pieter
> did see a Healey at Encounter in 2008 that had converted to a Dual
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