Dual circuit braking - Balance Bar - Master cylinders

[bbh]

The plan from the start has been to incorporate dual circuit brakes as part of the re-build.

I started with a plan to keep drums on the rear, upgrade the front (BJ8 disks / Girling type 16 callipers) and support each by a servo (2:1 rear, 3:1 front) with 2 x 7/8" master cylinders pushed from a balanced bar equiped pedal box.

As time has progressed, I am re-considering the servo bit (some of the rally cars and Sebring race cars) had a similar master cylinder / servo set-up (I am led to believe), but do I really need a servo? and can I make things a bit simpler by omitting these.

Thus any feedback on the following would be helpful :

 Servo v non servo on a road car?

 If non-servo, any experience with choice of master cylinder size for front and rear, remembering they will be operating on separate circuits.?

[frankenhealey]

You can always add a servo later

[dougie]

No servo. I run a 3/4" dual master cylinder with a rear bias valve on my race car. Four piston Wildwood calipers up front and girling discs in the rear. My car stops incredibily well......

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[Admin]

Dougie,

What pads are you using please?

Ian

[dougie]

I use FERODO RACING DS3000 on the rear and Hawk DTC 60 on the front. They give great braking and pretty good wear life on the track.