Porsche 718

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Kumboloi (talk | contribs) at 04:08, 25 May 2019 (Revise lead.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

This article is about the 1950s/60s sports-racing car. For the 2017 Boxster / Cayman production sportscar, see Porsche 982.
Porsche 718
two 718 RSKs at Nürburgring
Two Porsche 718 RSKs at Nürburgring
CategorySportscar, F1, F2
ConstructorPorsche
Designer(s)Wilhelm Hild[1]: 221 
Technical specifications[2]
ChassisSpaceframe chassis
Suspension (front)torsion bars, telescopic shock absorbers, anti-roll bar
Suspension (rear)Watt-linkage, coil springs over telescopic shock absorbers
EngineType 547 1,498 cc (91.4 cu in) DOHC F4 boxer engine normally aspirated Mid-engined
Transmission5-speed manual
Weight570 kg (1,256.6 lb)
FuelPetrol
Competition history
Notable entrantsPorsche System Engineering,
Ecurie Maarsbergen
Notable driversGraham Hill, Stirling Moss, Wolfgang von Trips, Edgar Barth, Carel Godin de Beaufort, Jo Bonnier, Dan Gurney, Hans Herrmann, Nino Vaccarella, Gerhard Mitter
Debut1957 Le Mans – Sportcars
1960 Italian Grand Prix – F1
RacesWinsPolesF/Laps
28 (F1)0 (F1)
3 (Targa Florio)
1 (12 Hrs of Sebring)		00
Teams' Championships0
Constructors' Championships0
Drivers' Championships5 (European Hill Climb)

The Porsche 718 is a series of one- or two-seat sports-racing cars built by Porsche from 1957 to 1962. An open-wheel single-seat model was developed for Formula racing.

Details

The 718 was a development of the successful Porsche 550A with improvements made to the body work and suspension. The car's full name is 718 RSK, where "RS" stands for RennSport (sports-racing) and the "K" reflects the shape of the car's revised torsion-bar suspension.[3] It had a mid-engined layout and used the 142 horsepower (106 kW) 1.5-litre Type 547/3 quad-cam engine introduced in the 550A.

Variations

Initially a two-seater 1.5-litre sports car, the 718 was adapted to compete in a number of different formulas and also evolved due to regulation changes.

RS 60

For the 1960 season the FIA made changes to the regulation regarding the windscreen and cockpit size. These rules changes together with a larger (1.6-litre) Type 547/3 engine, developing 160 horsepower (120 kW) and a new double wishbone rear suspension brought about the RS 60 model. The RS 60 brought Porsche victory at the 1960 12 Hours of Sebring with a car driven by Hans Herrmann and Olivier Gendebien. 1960 also saw Porsche win the Targa Florio with Hans Herrmann being joined on the winner podium by Jo Bonnier and Graham Hill. The RS 60 also ensured that Porsche successfully defended their European Hill Climb Championship for the third year in a row.

RS 61

For 1961 the model name was changed to "RS 61" although it was almost identical to the RS 60. An RS 61 won the European Hill Climb Championship.[4]

W-RS

The W-RS version was developed in 1961. Initially fitted with a 4-cylinder engine, the car was later fitted with Porsche's air-cooled Type 771 2.0 L flat-eight engine which produced 240 horsepower (180 kW).[5] A W-RS finished 8th at Le Mans in 1963. The W-RS continued Porsche's success in the European Hill Climb Championship with Edgar Barth claiming the title in 1963. Porsche would go on to win a European Hill Climb Championship every year until 1982, a total of 42 titles.

The W-RS continued racing until 1964 when it was replaced by the 904.

718 GTR Coupé

A bright orange 718 as driven by Carel Godin de Beaufort in F1 races
Carel Godin de Beaufort's 718 F1 race car

A Coupé version was developed from the RS 61. Initially fitted with a 4-cylinder engine, this car was also upgraded to an 8-cylinder F1 derived engine which produced 210 horsepower (160 kW).[6] The car was also fitted with disc brakes. A GTR Coupé driven Jo Bonnier and Carlo Maria Abate won the 1963 Targa Florio making it three wins at the event for a 718 car.

Racing history

The 718 made its racing debut at the 1957 24 Hours of Le Mans driven by Umberto Maglioli and Edgar Barth. The car failed to finish the race due to an accident.

In 1958, the car finished first in class and third overall at Le Mans guided by Jean Behra and Hans Herrmann. Jean Behra also brought one of the cars home second at the Targa Florio. In 1959, the car, driven by Edgar Barth and Wolfgang Seidel, claimed overall victory at the Targa Florio. A 718 also won the European Hill Climb Championship in both 1958 and 1959.

In 1961 Masten Gregory and Bob Holbert piloted a 718/4 RS Spyder to a class win at Le Mans.

Formula Two

A new Formula Two for 1.5-litre engine cars was introduced in 1957. Due the central location of the steering box, the 718 was easily converted to single seater specification and Porsche made their F2 debut with victories at Reims[7] and AVUS[8] in 1958. In 1959 other RSK's were converted for single seater racing and at the XV B.A.R.C. '200' at Aintree in 1960 Porsche scored a 1–2–3 victory with Stirling Moss, Jo Bonnier and Graham Hill all in 718s.[9] The feat was repeated again later in the year at the race at Zeltweg, Austria.[10]

Formula One

Formula One switched to a 1.5-litre formula in 1961 and Porsche entered three 718s for Dan Gurney, Hans Herrmann and Jo Bonnier. Gurney scored three 2nd places (France, Italy and United States) taking him to 4th place in the Drivers' Championship. For 1962, Porsche entered a new car, the Porsche 804 in Formula One.

Carel Godin de Beaufort, a privateer, entered a 718 in F1 between 1961 and 1964. He was killed driving his 718 during practice for the 1964 German Grand Prix at the Nürburgring.[11]

Gallery

  • A rear three-quarters view of a silver RS60 Spyder
    Porsche 718 RS60 Spyder
  • A view from the side of a silver RSK
    Porsche 718 RSK Spyder
  • A front side view of a silver W-RS
    Porsche 718 W-RS Spyder
  • A rear three-quarters view of a silver W-RS
    Porsche 718 W-RS Spyder

See also

References

  1. ^ Ludvigsen, Karl (1977). Porsche Excellence was Expected. Princeton Publishing. ISBN 0-915038-09-9.
  2. ^ "1959/60 Porsche 718 RS 60 Spyder". 2012. Archived from the original on 11 May 2012. Retrieved 24 May 2019.
  3. ^ "Time Travel: The Porsche 718". newsroom.porsche.com. 4 June 2016.
  4. ^ "1961 - Porsche 718 RS 61 Spyder" (in German). 2013. Archived from the original on 18 October 2013. Retrieved 24 May 2019.
  5. ^ "1961 - Porsche 718 W-RS Spyder" (in German). 2013. Archived from the original on 18 October 2013. Retrieved 24 May 2019.
  6. ^ "1962 - Porsche 718 GTR Coupé" (in German). 2013. Archived from the original on 18 October 2013. Retrieved 24 May 2019.
  7. ^ "II Coupe Internationale de Vitesse 1958". www.the-fastlane.co.uk. 15 November 2016.
  8. ^ "IV Grosser Preis von Berlin 1958". www.the-fastlane.co.uk. 17 November 2016.
  9. ^ "XV B.A.R.C. '200' 1960". www.the-fastlane.co.uk. 31 December 2016.
  10. ^ "III Flugplatzrennen Zeltweg 1960". www.the-fastlane.co.uk. 30 December 2016.
  11. ^ "Race history". www.carelgodindebeaufort.nl.

External links

Wikimedia Commons has media related to Porsche 718.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Porsche_718&oldid=898663016"