Technical data - Turbo with cast iron brake discs

TECHNICAL DATA - TURBO WITH CAST IRON BRAKE DISCS

Designation

Notes, dimensions

Operating brake (foot brake) with cast iron brake discs (standard brake)

Hydraulic dual-circuit brake system with front-axle / rear-axle brake circuit division. Vacuum brake booster, internally ventilated and perforated cast iron brake discs with four-piston monobloc fixed caliper at front and rear axles.⁽¹⁾

The brake calipers are painted red for visual differentiation.⁽¹⁾

PSM⁽¹⁾

Brake booster (vacuum)

10 inch

Boost ratio

3.85

Brake master cylinder

front

25.4 mm

rear

25.4 mm

Stroke

18/18 mm

Brake proportioning control⁽²⁾

EBV⁽²⁾

Brake discs

front

330 mm

rear

330 mm

Effective brake discs

front

267.8 mm

rear

271.2 mm

Piston in brake caliper

front

2 x 44 + 2 x 36 mm

rear

2 x 30 + 2 x 28 mm

Brake pad area

front

314 cm²

rear

254 cm²

Total brake pad area

568 cm²

⁽¹⁾	Porsche Stability Management (PSM) standard with ABS, Traction Control (TC), ABD, MSR (engine drag torque control), FZR (vehicle regulator) and EBV (electronic brake distributor). Passive switching possibility for TC, FZR and MSR.

⁽²⁾	EBV = electronic brake distributor (brake proportioning control). As a result, no screw-in brake proportioning valves are required!