The pedal effort required to operate the brakes is determined by the area of
the master cylinder or cylinders in relation to the area of the wheel
cylinders or caliper pistons. So using two master cylinders of the same size
gives WAY more piston area and the effort required will go up damatically.
When we put a Tilton balance bar setup on Bill Fink's Morgan SLR a number of
years ago we used two 5/8" masters and that still required more pedal effort
than the stock single 3/4" master that a Morgan uses. I understand that
someone, possibly Wilwood now makes 9/16" Master cylinders. They would be
closer in total piston area the a singe 3/4 or .700" master.
Greg Solow
----- Original Message -----
From: "Joe Curry" <spitlist@cox.net>
To: <WEmery7451@aol.com>; <markvaden@gmail.com>; <fot@autox.team.net>
Sent: Friday, November 02, 2007 10:24 AM
Subject: Re: [Fot] dual circuit brakes on a tr4
>I noticed the same thing when I installed two Single circuit master
> cylinders and the Tilton balance bar on my Spit. The petal is much harder
> and requires more effort to brake than before. I previously had a dual
> circuit GT6 master cylinder installed and wanted to gain a bit more
> control
> on the front/rear balance.
>
> Joe C.
>
> ----- Original Message -----
> From: <WEmery7451@aol.com>
> To: <markvaden@gmail.com>; <fot@autox.team.net>
> Sent: Friday, November 02, 2007 9:34 AM
> Subject: Re: [Fot] dual circuit brakes on a tr4
>> I was surprised the first time out on the track with this system. I had
> to
>> push the brake peddle a lot harder to get the same effect.
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