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Porsche 991 GT3 R Assetto Corsa Competizione

The Porsche 991 GT3 R in Assetto Corsa Competizione is a fine car. Let’s find out more in detail if this is the right car for you to race in ACC.

Have you ever looked at the Porsche GT3 R in Assetto Corsa Competizione and thought ” I want to drive that car” but struggle with it. Luckily great people in the sim racing community are here to help. Dan SimRacing provides a great talk through on the car and how to set the ideal setup for this model of race car. Like most things, his opinion is subjective.

The guide he gives is a great benchmark to work from before you go into the fine tuning to adapt to your style. Explaining what each setting does in the tuning guide and how it affects the car, we see great presentation and content.

991 GT3 R 

2019 Porsche 911 GT3 R - 3010755

In May 2015, Porsche announced the 991 GT3 R, a customer race car designed to compete in Group GT3 from 2016 onwards. The car is homologated based on the 991 GT3 RS road car and uses the production car’s 4.0-litre flat-six rated at around 373 kW (507 PS; 500 hp), running through a six-speed paddle-shift sequential gearbox. The GT3 R features a double-bubble roof and a wheelbase that had been lengthened by 8.3 cm.

Engineers also “significantly optimised” the centre of gravity position versus the old R, using carbon-fibre composite material (CFRP) for the roof, front cover and fairing, wheel arches, doors, side and tail sections as well as the rear cover. All windows – and for the first time ever, the windscreen – are made from polycarbonate to cut weight. Race car essentials such as an integrated (welded) roll cage according to FIA Appendix J, safety fuel cell (approximately 120 litres, with fuel cut off safety valve in accordance with FIA regulations), removable roof escape hatch and an air jack system are present. The weight is 1,220 kg (2,690 lb).

The GT3 R has adopted the concept of the central radiator from the 911 RSR. By eliminating the side radiators, the position of the centre of gravity is improved, the radiator is better protected against collision damage, and the venting of hot air through louvres in the front cover is enhanced. The two-metre wide rear wing lends aerodynamic balance and distinctive wheel arch air vents on the front fairings increase downforce at the front axle.

The GT3 R’s front MacPherson strut suspension and multi-link rear suspension are adjustable in height, camber and toe, and there are adjustable anti-roll bar blades at both ends. All wheel hubs come with centre-lock wheel nuts. There are two separate brake circuits for the front and rear axles; driver adjustable via a brake balance bar system. The front brakes consist of six-piston aluminium monobloc callipers gripping 380 mm discs; the rears are four-piston items with 372 mm discs.

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