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ACL GTR Porsche RSR 74

ClassicAC Legends
315 hp
Horsepower
790 kg
Weight
RWD
Drivetrain
1974
Year

Porsche 911 Carrera RSR 3.0 (1974)

The Porsche 911 Carrera RSR 3.0 is an iconic 1970s FIA GT-era racing car, built by Porsche to dominate long-distance sports car racing with a potent rear-mounted flat-six, lightweight construction, and relentless durability. The AC Legends "ACL GTR Porsche RSR 74" interpretation captures the raw personality of one of the most famous 911 racers ever made.

Key Specs (BoP-dependent, typical sim values)

  • Powertrain: 3.0L naturally aspirated flat-6, air-cooled, rear-mounted

  • Total Output: ~315 hp (235 kW)

  • Redline: ~8,000 rpm

  • Transmission: 5-speed manual

  • Weight: ~790 kg

  • Dimensions: ~4,300 mm long × 1,650 mm wide × 1,250 mm tall | Wheelbase ~2,271 mm

  • Tires: Vintage racing slicks on period-correct alloy wheels

  • Brakes: Ventilated disc brakes

  • Layout: Rear-engine, rear-wheel drive

In the Simulator Feel

The 911 RSR 3.0 is a lightweight, high-commitment classic GT racer that rewards patience, mechanical sympathy, and precise weight transfer. With so much mass sitting over the rear axle, it has enormous traction on corner exit, but it can also bite hard if you enter too fast or lift off abruptly mid-corner. That combination makes it one of the most rewarding cars to learn, because every lap is a lesson in balance.

Engine & Sound: The air-cooled flat-six has a distinctive, hard-edged wail that builds into a metallic scream as the revs rise. It feels eager and lively rather than torquey, with power arriving in a narrow but thrilling band that encourages you to keep the motor singing. The soundtrack is pure vintage Porsche — mechanical, raspy, and full of character.

Handling Characteristics:

  • Cornering: Very sharp turn-in if you trail brake well, but the rear end demands respect and smooth steering.

  • Traction: Excellent rear grip on exit, though sudden throttle changes can still provoke oversteer.

  • Braking: Strong for its era, but braking stability depends heavily on your confidence and technique.

  • Top Speed: Respectable rather than overwhelming, but the car carries speed well through fast sections thanks to its low weight.

Driving Style Tip: Drive it with finesse. Use trail braking to help rotate the car, then unwind the wheel and feed in throttle progressively. It shines on technical circuits and historic layouts where agility matters more than outright power.

Livery & Aesthetics: The RSR’s wide body, ducktail spoiler, and aggressive stance make it one of the most recognizable race cars of its era. In period liveries it looks absolutely authentic — purposeful, muscular, and unmistakably Porsche, with just enough race-worn charm to feel alive in the sim.

Whether you're chasing lap time or just enjoying the era, the Porsche 911 Carrera RSR 3.0 delivers one of the most engaging classic GT experiences in sim racing — raw, iconic, and deeply rewarding.