Call CTR
| call | |
|---|---|
 |
|
| CTR | |
| Production period: | 1987-1991 |
| Class : | Sports car |
| Body versions : | Coupe |
| Engines: |
Otto engine : 3.367 liters (345 kW) |
| Length: | 4290 mm |
| Width: | 1775 mm |
| Height: | 1311 mm |
| Wheelbase : | 2273 mm |
| Empty weight : | 1150 kg |
| Previous model | Call BTR |
| successor | Call CTR2 |
The Ruf CTR (Group C T win-Turbo R uf), also known as Ruf Twin-Turbo or Yellowbird , is a super sports car from the southern German automobile manufacturer Ruf Automobile . Production of the vehicle derived from the Porsche 911 Carrera 3.2 began in 1987. 29 CTRs with Ruf chassis numbers were built with bodyshells acquired from Porsche, and customer vehicles were also converted.
In order to reduce weight, components such as the rear seat bench or insulation material were dispensed with, parts were replaced by lighter ones, for example aluminum sheets were used on the doors and trunk lid. An integrated roll cage improved body rigidity and safety, the brake system was described in sport auto as "The best that is currently offered in sports car construction".
The reputation of CTR had its first public appearance in April 1987 in the "World's fastest cars" comparison of the US car magazine "Road & Track", where it was nicknamed "Yellowbird". There, with a top speed of 339 km / h, it was faster than the competition from the Porsche 959 , Lamborghini Countach 5000S , Isdera Imperator 108i , Ferrari Testarossa , Ferrari GTO , AMG-Mercedes and a tuned RS-Porsche and has since become the fastest production vehicle in the world are designated.
A promotional video published by Ruf achieved cult status, in which test driver Stefan Roser drifted around the Nürburgring's Nordschleife in the Ruf CTR.
In 1988 the Ruf CTR achieved the highest speed in a comparison test of Auto, Motor und Sport on the Pista di Nardò with 342 km / h, it was 3 km / h faster than the Porsche 959 s and 21 km / h faster than the two Ferrari F40 sent by Ferrari .
In 2004, an old reputation CTR could keep up in a comparison of the British magazine Autocar with new super sports cars, just as another impressed with over 100,000 kilometers on the clock in 2005 in a comparison by the American magazine Road & Track.
At the Geneva Motor Show 2017, Ruf presented the CTR 2017, a self-developed vehicle that quotes the Yellowbird.
technology
engine
- Air-cooled six-cylinder boxer engine , installed lengthways at the rear
- Overhead camshafts driven by chains
- Electronically controlled fuel injection and ignition (Bosch Motronic )
- Compression ratio 7.5: 1
- Bore × stroke 98.0 mm × 74.4 mm
- Cubic capacity 3367 cm³
- specific power 102.5 kW / L (139.3 PS / L)
- Output 345 kW (469 hp) at 5950 rpm
- Max. Torque 553 Nm at 5100 rpm
- Piston speed at nominal speed 14.8 m / s
- 2 turbochargers KKK (K26), charge air cooling, max. Boost pressure 1.1 bar
Power transmission
- Rear wheel drive
- RUF five-speed gearbox (from 1988 on request RUF six-speed gearbox)
landing gear
- Front shock absorbers , wishbones , torsion bar suspension , stabilizer , Bilstein shock absorbers
- Rear semi- trailing arm , torsion bar suspension, stabilizer, Bilstein shock absorber
- Front and rear internally ventilated and perforated disc brakes
- Tires: RUF rims front 8 "× 17" DL with 215/45 VR 17, rear 10.0 "× 17" DL with 255/40 VR 17
Performance
During the first test in April 1987 the following values were measured:
- 0-80 km / h 3.3 s
- 0-100 km / h 4.2 s
- 0–120 km / h 5.2 s
- 0–140 km / h 6.1 s
- 0-161 km / h 7.3 s (100 mph)
- 0–180 km / h 8.7 s
- 0-200 km / h 10.5 s
- 400 m with standing start: 11.7 s (final speed 215 km / h)
- Top speed: 339 km / h
The following values were determined shortly afterwards by sport auto :
- 0-100 km / h 4.1 s
- 1 kilometer with a standing start: 20.9 s
In 1988, Auto, Motor und Sport measured the following in Nardò :
- Top speed: 342 km / h
The following acceleration values were achieved in the test by the British magazine Autocar :
- 0-97 km / h 3.65 s (60 mph)
- 0-161 km / h 6.71 s (100 mph)
- 0-241 km / h 14.59 s (150 mph)
- 0-322 km / h 35.57 s (200 mph)
- 1 mile (1609 m) with a standing start: 27.7 s (top speed 304.34 km / h)
Individual evidence
- ↑ a b The technology of the RUF 911 CTR ( Memento from December 2, 2000 in the Internet Archive )
- ↑ a b http://www.auto-motor-und-sport.de/fahrberichte/ruf-rgt-trifft-ruf-ctr-yellowbird-elfer-mit-v8-motor-und-biturbo-legende-5779995.html
- ↑ a b c sport auto 7/1987 Archived copy ( memento of the original from January 22, 2017 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b Road & Track July 1987. Online excerpt .
- ↑ a b c d e f g h i Article "De snelste: 339 km / u!" by Paul Frère
- ↑ a b Auto, Motor und Sport 25/1988
- ↑ a b c d e f Autocar magazine from April 27, 2004
- ^ Road & Track September 2005
- ↑ 710 hp homage to the Yellow Bird . In: auto-motor-und-sport.de . March 7, 2017. Retrieved March 8, 2017.
