Servo

[Mark Cowling]

Hi all does anybody know if servo"s were used on group four cars I"ve only seen one in a picture & that was a remote one on the Chequered Flag Car. Regards Mark.

[tryphon]

The Checkered Flag team was the only one to use them. I think they reverted to unassisted brakes very soon.

[Mark Cowling]

Hi Tryphon Thanks for the info, Regards Mark.

[Mark Cowling]

Hi Tryphon do you know what size master cylinders was used with the four pot calipers & bias brakes, Regards Mark.

[tryphon]

.7" and 5/8"

[Mark Cowling]

Thanks again Tryphon.

[Mark Cowling]

would the smaller 5/8 piston be used on the front for greater pressure or would this depend on what surface they were on?

[tryphon]

It has more to do with the quantity of liquid displaced than with "pressure".
The smaller ones acts on the rears.