“Ducktail – Entenbürzel” is the name for the wing on the engine flap of the Porsche 911 Carrera RS 2.7. It’s the most striking feature of the sporty model designed for homogeneity at the time. “It was supposed to be a very fast and light sport utility vehicle,” says Peter Falk, then at Porsche as test director for the vehicle series.
Walking or sport?
The plan is to build 500 units to meet the requirements for the participation of the fourth group. The RS was first shown at the Paris Motor Show in Porte de Versailles on October 5, and 500 cars were sold at the end of November. Porsche did not expect this. By July 1973, 1,580 Carrera RS 2.7 were built, mostly as more comfortable touring models with rear seats, carpet and standard seats. Porsche made 1308 copies of this version with the internal shortening of the M472.
The M471 sports package for 700 marks is cheaper than the excursion package which costs 2500 marks. There are also fewer in it: the rear seats, the carpet, the clock, coat hooks and armrests are missing. The hood is made of plastic, the body is made of thin sheet metal and lighter glass from the Belgian company Glaverbel helps reduce weight by 100 kilograms compared to the 911 S. If you like, you can choose seat covers that have less weight and provide more lateral support. Compared to Touring, “Sport” is 115 kilograms lighter and operates at a speed of 5 km / h. Porsche makes exactly 200 “sports”. There are also 55 racing versions and 17 base vehicles.
The fastest German production car
In testing, the Carerra RS with a full tank weighed 1,010 kg. This also explains the difference in performance compared to the much weaker 911 S: in a test on the Automobile and Sport drive in 1971, it needed 27.2 seconds per kilometer with a standing start. The Carerra RS took just 25.4 seconds in early 1973.
With factory specs of 5.8 seconds to sprint from zero to 100 km/h and 245 km/h, the 1972 sports version of the Porsche 911 Carrera RS 2.7 is Germany’s fastest production car. Touring takes half a second of time – and in that time it was still much faster than most other cars.
Catapult effect when accelerating
In a test conducted by auto motor und sport at the beginning of 1973, the Carrera RS accelerated from zero to 100 km / h in 5.7 seconds – three tenths faster than the Ferrari 365 GTB 4. With 348 hp, the 4.4 liter V12 is only slightly faster than 120 km. / hour and at the kilometer with the start of the stop. No chance for the 911 S: it takes 7.4 seconds from zero to 100 km / h. “Indeed exactly at this speed range, which can be occupied by the two lower gears, the effect of a real catapult can be felt upon acceleration,” wrote Klaus Westrup in Issue 4/1973. He also praised the revving power of the boxer’s six-cylinder engine: “Even in second gear, the speed increases so quickly that 7,300 revolutions, at which the limiter starts, are never reached in no time at all.”
The rump, created by Porsche engineers Hermann Berst and Tillmann Brodbeck together with the designer Rolf Wiener, helps to achieve the maximum speed: in the tests, the masters determine the optimal height of the rump with the help of metal plates and then find out that not only is planned, the lift decreases on the rear axle, but the speed The max is also increasing: by 4.5 km/h to be exact. On August 5, 1972, they registered a patent application with the German Patent Office under the number 2238704.
Wider in the back than in the front
The Carrera RS was the first Porsche to have wider tires at the rear than at the front: 215/60 VR 15 on the rear axle and 185/70 VR 15 on the front axle. Among other things, this would improve traction and make it necessary to expand the body at the rear by 4.2 cm. Customers can scrap the “Carrera” lettering on the wings between the wheel arches, but not on the rump.
Both help to achieve high lateral acceleration values in fast corners. But if the sticking breaks, the right reflexes are soon needed: “And then Carrera skips and does it so suddenly that you have to get it right very quickly and correctly,” Westruppe wrote in the test. The Carrera, on the other hand, was stable on fast highway curves. However, driving straight above 200 km/h requires concentration, according to the test report.
RSR . racing version
The RSR (Sports Racing) used in motorsport, of which the RS was a road version, ended the 1973 season with some success. In the 24 Hours of Daytona, Peter Gregg and Hurley Haywood drive the RSR and take the lead by 22. Herbert Muller and Jess Van Lennep won the Targa Florio in May of the same year. In total, Russia won three international and seven national championships in 1973.
Porsche did not use hot-dip galvanized steel plates for bearing body parts until the 1976 model; Accordingly, the Carrera 2.7 is still lacking in precautions, which has caused great concern to many owners. Even if a few models have already been restored at least once and/or are well protected in the groups, it is worth knowing about the classic problem areas of the Carrera RS. These include rusty front fenders above the headlight bowls and in the fuel filler fender area, corroded floor panels on the front end, worn spare wheel wells, and damaged A and B pillars.
Furthermore, sills, rear wheel arches, and floor trough grooves are among the preferred breeding areas for brown plague. Over the years, a duck’s tail can also lose strength due to the heat generated by the engine. The interior of the 911 is not particularly durable: cracks in the dashboard, worn upholstery and broken carpets are unfortunately not uncommon.
The elaborately designed six-cylinder boxer is an authentic sports engine that needs good handling and regular maintenance. Thanks to the cylinder liners from Nikasil, this engine is surprisingly wear-resistant; It still suffers from typical Porsche ailments such as leaky magnesium engine covers or ruptured cylinder head studs.
Rattle sounds when idle? Then it is very likely that the chain tensioners are worn out and should be replaced as soon as possible. Timing chain routing through hard rubber parts is also often affected. After about 150,000 kilometers, the mechanical injection pump usually requires expensive repair, while the gearbox rarely causes a problem, most of the time the shift guide is stopped.
The 210-horsepower 2.7-liter engine in the Carrera RS is a modified 2.4-liter engine from the 911 S. The increase in cubic capacity is attributed to a 90mm larger cylinder bore instead of the 84mm; The new engine also received forged pistons with crowns and flat cylinders with a Nikasil cap. All other engine parts such as the crankshaft, camshaft, valves and cylinder heads are compatible with the 911 S engine.
Only 1,580 copies were built, especially the coveted Sport version with a spartan interior (factory code M 471) listed above the new 2,500-branded more expensive touring equipment. However, one must beware of fakes and imitations. In the case of the originals, the engine number begins with the numbers 66, and the type plate also says Dr.-Ing. hc F. Porsche KG and not as after AG.
Ten years ago, the cost of the Porsche 911 Carrera RS 2.7 was nearly a quarter of a million. Those days are over. By 2016, prices for flights in good condition increased to 670 thousand euros. Those who bought at that time are likely to be disappointed today by the value recorded by Classic Analytics in 2022: the Carrera RS 2.7 is worth 440,000 euros today. But that’s relative, as RM Sotheby’s auctioned the 911 Carrera RS 2.7 in Monaco on May 14, 2022 for €1.2875 million. The car was straightforward, however, and still had yellow paint for the first time and was one of the 200 lightweight models.
Introduced in 1972 (Porsche Carrera RS 2.7 Touring)
- 36500 marks
End of production 1973 (Porsche Carrera RS 2.7 Touring)
- 36500 marks
The supply case is marked by a painful rise in prices and the difficulty of delivery of some Carrera RS parts. The good news, on the other hand, is that all of the standard parts for the 911 prior to the introduction of the Model G in August 1973 are readily available. Free providers are usually cheaper.
- headlight pots
- Spare wheel well
- standing boards
- A and B pillars
- Sills and wheel arches
- chain tensioner
- Loss of oil on the magnesium shell
- Spring bars (rust and fatigue)
- Heat Exchanger
- transmission synchronization
First, sales success, then victory in motorsport – sometimes the saying ‘win on Sunday, sell on Monday’ also works in reverse. With the Carrera RS 2.7, Porsche has created an icon that is one of the most expensive ways to drive the 911 today. But Price shouldn’t be the focus, because the Carrera RS’s true value lies in its being one of the purest variants of the brand icon.The fact that it was the first in some ways – the hybrid tires, the wider rear end – and the fastest on the road 50 years ago certainly doesn’t hurt. All the more surprising when you consider that only 15 people were working on this car at Porsche at the time.
|Porsche 911 Carrera RS 2.7 Touring|
|Base price||36,500 DM|
|external dimensions||4102x1652x1320 mm|
|Displacement / Engine||2,687 cc / 6 cylinder|
|maximum speed||245 km/h|
|consumption||16.0 liters per 100 km|
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