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Street Version Brake System Detail The Carrera Cup USA has a completely different braking system than the normal Carrera 2 or RS America. On these cars, the larger 322 mm diameter, thicker, cross-drilled front discs and larger front calipers of the 964 Turbo are used.
In the rear the caliper and disc designed for early Carrera 2 based Carrera Cup cars is used. This caliper body is the same size as the C2/Turbo rear caliper and has four pistons of the same size as the Turbo but it is made to accommodate the thinner, cross-drilled Carrera Cup disc (Turbo discs are 4 mm thicker).
The RS/Carrera Cup USA boost system is of the
hydraulic type as used in the Turbo and Carrera 4 but with a reduced booster
factor of 3.6 versus 4.8:1 on Turbo. This, coupled with a larger 25.4 mm
master cylinder versus 23.18 mm on Turbo, gives the Carrera RS and Carrera
Cup USA cars a very firm pedal feel.
The above 7 Pictures are of the "Stock" Cup specification front brake system as delivered and as intended to compete. Chassis #552, pictures by the owner ABS and Hydraulic system
Brake fluid reservoir
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