Compare
Two 911s, spec for spec
Slot A
911 Carrera RSR 2.8 (M491)
Open variant page →Slot B
911 Carrera RS 2.7
Open variant page →Power
0–100 km/h
Top speed
Kerb weight
| Spec | 911 Carrera RSR 2.8 (M491) | 911 Carrera RS 2.7 |
|---|---|---|
| Generation | 901 — Original 911 / F-Body | 901 — Original 911 / F-Body |
| Years (differs) | 1973 | 1972–1973 |
| Engine (differs) | 2,808 cc air-cooled flat-six, Typ 911/72, 92 mm bore × 70.4 mm stroke | 2,687 cc (2.7 L) air-cooled twin-ignition flat-six, Typ 911/83, 90 mm bore × 70.4 mm stroke, NIKASIL-coated bores, Bosch mechanical fuel injection |
| Power (as published) (differs) | 312 PS (229 kW; 308 hp) | 210 PS (154 kW; 207 hp) at 6,300 rpm |
| Power (differs) | 312 PS | 210 PS |
| Torque (differs) | — | 255 N·m (188 lb-ft) at 5,100 rpm |
| 0–100 km/h (differs) | — | 0–97 km/h (0–60 mph) 5.2 s Touring / 5.5 s Lightweight (stuttcars performance data); Porsche published no 0–100 km/h figure |
| Top speed (differs) | — | 240 km/h (149 mph) per RM Sotheby's; fastestlaps.com measured 245 km/h (152 mph) |
| Weight (differs) | — | 1,075 kg (2,370 lb) Touring; Sport version about 100 kg less — Porsche quotes 960 kg kerb weight for the Sport car |
| Kerb weight (differs) | — | 100 kg |
| Drivetrain | Rear-engine, rear-wheel drive | Rear-engine, rear-wheel drive |
| Layout | RWD | RWD |
| Transmission (differs) | 5-speed manual | 5-speed manual (Type 915) |
| Body styles | Coupé | Coupé |
| Cooling / family | Air-cooled | Air-cooled |
| Production (differs) | 55 of the 1,580 Carrera RS cars were converted to RSR 2.8 under M491 (Wikipedia) | 1,580 total per Porsche Newsroom and Wikipedia (1,308 Touring M472, 200 Sport lightweight M471, 55 RSR, 17 homologation base cars); two secondary compilations quote 1,590 |
| Limited run | Yes | Yes |