Race Cars For You – Race Car 101
Porsche 991.2 GT3 Cup Car
At the core of the Porsche 991.2 GT3 Cup is a powerful, race-bred 4.0-liter naturally aspirated flat-six engine. Precision-engineered for maximum performance, it delivers over 485 horsepower with unmatched intensity.
The Porsche 991.2 GT3 Cup’s design showcases its racing heritage, with every detail engineered for peak track performance. Its widebody form boosts stability and grip, while a prominent rear wing delivers significant downforce, ensuring the car remains firmly grounded during high-speed corners. From its bold stance to its precision-driven aerodynamics, every element serves a purpose in enhancing performance.
Engine
- Aluminium six-cylinder horizontally opposed engine, rear-mounted 3,996 cm3; stroke 81.5 mm; bore 102 mm
- Max. power: 357 kW (485 hp) at 7,500 rpm
- Max. rpm: 8,500
- Maximum torque: 480 Nm at 6,250 rpm
- Single-mass flywheel
- Water-cooled with thermal management for engine and transmission
- Four valves per cylinder
- Variable cam phasing (intake and exhaust)
- Direct fuel injection
- Fuel grade: Super unleaded, minimum 98 RON
- Dry-sump lubrication
- Electronic engine management (Bosch MS 4.6 NG)
- Race exhaust system with regulated race catalytic converter
- Rear silencer with central twin tailpipe
- Electronic throttle
Transmission
- Porsche six-speed sequential dog-type transmission
- Gear ratios:
- Ring and pinion gear 14/22 i = 1.571
- Final drive 17/41 i = 2.412
- 1st gear 13/41 i = 3.154
- 2nd gear 17/40 i = 2.353
- 3rd gear 19/36 i = 1.895
- 4th gear 19/29 i = 1.526
- 5th gear 24/30 i = 1.250
- 6th gear 34/35 i = 1.029
- Internal pressure-oil lubrication with active oil cooling by oil-water heat exchanger
- Mechanical differential lock
- Triple-disc sintered metal racing clutch
- Pneumatic gearshift activation (paddle shift)
Weight / Dimensions
- Total weight: ca. 1‚200 kg (2,645.55 lbs)
- Total length: 4‚564 mm (179.01 inch)
- Total width: 1‚980 mm (77.95 inch)
- Total height: 1‚246 mm (49.06 inch)
- Wheelbase: 2‚456 mm (96.69 inch)
Cockpit
- Ergonomic driver-oriented centre console
- Control switch trim with fluorescent lettering
- Steering wheel with quick-release coupling, control panel and shift paddles
- Adjustable steering column with steering angle sensor
- Racing bucket seat with fore/aft adjustment
- Shock-absorbing roll cage safety cover for leg protection in driver’s footwell
- Six-point racing safety harness
