Brake Master Cylinders And Balance Bar; Basicsetup Adjusting Spindle - Porsche 911 GT3 Cup 2008 Technical Handbook

Brake master cylinders and balance bar:

Basicsetup adjusting spindle:

The two brake master cylinders supplying each brake circuit have
different bore diameters:
- Front axle 20.6 mm (orange marking)
- Rear axle 19.05 mm (green marking)
The front to rear brake balance can be adjusted by turning the adjuster
shaft.
When the car is delivered, the brake balance is set to 40 bar on the
front and 38 bar on the rear axle. Rotating the adjuster wheel
clockwise increases the brake pressure on the rear. Rotating the
adjuster anti-clockwise increases the brake balance on the front axle.
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