Porsche WSC-95
Encyclopedia
The Porsche WSC-95 was a Le Mans Prototype
built for Porsche
by Tom Walkinshaw Racing
and run by Joest Racing
, yet can trace its origin to a Jaguar
sports car designed in 1991. Originally intended to race in the IMSA
World Sportscar Championship
, the WSC-95 actually saw very little race action even though it managed to win the 24 Hours of Le Mans
in both and without actually being acknowledged as a factory supported project. It would later be upgraded to the Porsche LMP1-98 before being retired. Only two cars would ever be built.
approved the beginning of a project to develop a prototype for the International Motor Sports Association
(IMSA) series, running under the World Sports Car (WSC) regulations. The car would not be a factory-backed effort, yet would be approved by Porsche and use some of their expertise and most of all their powerplant. Porsche turned to Tom Walkinshaw Racing
(TWR) to develop a car, yet would not put forward the money in order for a new car to be built from scratch.
TWR would therefore turn to a chassis which was remaining in their shop, a spare Jaguar XJR-14
which had never completed its sale in 1992. This car was deemed suitable enough to be used in the new prototype, although it would require extensive modifications. First and foremost, the roof of the cockpit was removed in order to comply with WSC regulations. A large rollhoop was retained in order to keep structural rigidity, with a large air scoop to feed the engine being placed underneath this in order to replace the large air scoop that had originally been on the roof. Since the motor was to be a turbocharged Porsche unit, instead of the Cosworth HB V8, two scoops had to be added to the sides of the car in order to feed air to the turbochargers. Finally, the rear of the car was modified, replacing the large two tier wing with a more normal setup that fit with the current regulations.
For an engine, Porsche would use one of their longest running motors, the Type-935 turbocharged Flat-6. Originally used in the Porsche 956
in the 1980s, the engine was still powerful enough to power modern prototypes. While Porsche's new 911 GT1
s would use a 3.2 Litre engine, the WSC-95 would use a smaller 3.0 Litre engine. Although smaller, this gave the WSC-95 a better fuel economy than the 911 GT1, which would be useful over long race distances.
Unfortunately, the IMSA WSC regulations were changed prior to the 1995 season, leading to Porsche canceling the project. However, in February 1996 Reinhold Joest
of the Joest Racing team convinced Porsche to give the unused prototype to his team, and for them to compete in the 24 Hours of Le Mans
. With approval from Porsche, Joest put forth the money to allow for the construction of a second car from scratch, as well as the slight modifications to the existing car in order to meet the Le Mans Prototype
(LMP1) regulations. Porsche would agree to help in the development of the car only if Joest agreed to pay for the services.
Following the success of the WSC-95s in winning both the and 1997 24 Hours of Le Mans
, Porsche
decided to take over the project themselves. Both WSC-95 chassis underwent major revisions to their bodywork. The nose was raised in the middle, while to the sides sculpting allowed for the moving of the air intakes for the engine, necessitating the removal of the large scoop underneath the rollbar. The sides of the car were also redesigned, with the large opening for the radiator vents covered up while exhaust vents were also rearranged. The Type-935 Flat-6 was also upgraded, expanded out to 3.2 Litres. While now considered an official Porsche project, the cars became officially known as the Porsche LMP1-98s.
to go to the Le Mans test session in May. There, the two cars showed their pace early by setting the fifth and tenth fastest times, easily beating the factory Porsche 911 GT1
s. A few weeks later at Le Mans, the WSC-95s showed their improvements and the #8 entry actually found itself in pole position
, while #7 was seventh. However the 911 GT1s had also improved, taking the fourth and fifth fastest qualifying positions. During the race, the #7 WSC-95 lead for nearly the entire race, although closely followed by the factory 911 GT1s. The #8 entry remained towards the front as well, although it would succumb to mechanical failures caused by a collision on the track during the closing hours. In the end, the #7 entry of Davy Jones
, Alexander Wurz
, and Manuel Reuter
would take the overall victory, a mere lap ahead of the following Porsche 911 GT1
.
Although Joest had originally intended to run the car just at Le Mans in 1996, it was decided that the team would attempt once again in 1997 with a single car. A few weeks prior to Le Mans, Joest decided to showcase their car at the inaugural International Sports Racing Series event at Donington Park
, where the car took a dominant victory. Upon returning to Le Mans they still showed their pace by once again taking pole position. Although still facing competition from the factory Porsche 911 GT1
s as well as the new McLaren F1 GTR
s, Nissan had now entered and were keen to take an overall victory. However, unlike the previous year, the 911 GT1s suffered various difficulties, both in the hands of the factory team but also for the privateers. The finish therefore came down to a close race between a McLaren F1 GTR
and the WSC-95, with Joest Racing
once again coming out the victor by a single lap. Michele Alboreto
, Stefan Johansson
, and Tom Kristensen
would take the victory this time.
Now realizing the potential of the abandoned WSC-95 against their 911 GT1, Porsche developed both chassis into the newer and even more capable LMP1-98. Unfortunately at the same time, not only were Porsche
attempting to improve both the 911 GT1 and LMP1-98, but as were Nissan and the newcomers Toyota, Mercedes-Benz
, and BMW
. Still run by the Joest Racing
squad, the LMP1-98s showed that their quick pace was now lacking against new competitors, managing to take a best of only ninth in qualifying. During the race itself, although the LMP1-98s showed pace, they unfortunately would not be able to survive the entire race. One car suffered electronics difficulties after only 107 laps, while the second car would break some bodywork mountings in a spin and would not be able to continue after it had completed 218 laps.
For a final appearance, an LMP1-98 would appear at the debut Petit Le Mans
in the United States. Alongside a lone 911 GT1, both cars showed great pace but unfortunately the LMP1-98 would have to settle for second place, defeated by a customer Ferrari 333 SP
by only a few seconds following ten hours of racing.
The LMP1-98s would be retired after 1998, with Porsche planning to develop their own Le Mans Prototype
for 2000. That project would later be cancelled, and Porsche would not return to factory prototype racing until the 2005 debut of the Porsche RS Spyder
.
WSC-95 #002
Le Mans Prototype
A Le Mans Prototype is a type of sports prototype race car most notably used in the 24 Hours of Le Mans, American Le Mans Series and Le Mans Series...
built for Porsche
Porsche
Porsche Automobil Holding SE, usually shortened to Porsche SE a Societas Europaea or European Public Company, is a German based holding company with investments in the automotive industry....
by Tom Walkinshaw Racing
Tom Walkinshaw Racing
Tom Walkinshaw Racing , was an auto racing team and engineering firm founded in 1976 by touring car racer Tom Walkinshaw.-History:TWR started by modifying BMW 3.0 CSLs, but soon was contracted to head Mazda's works program in the British Touring Car Championship. The TWR developed RX-7, with Win...
and run by Joest Racing
Joest Racing
Joest Racing is a racing team that was established in 1978 by former Porsche works racer Reinhold Joest...
, yet can trace its origin to a Jaguar
Jaguar (car)
Jaguar Cars Ltd, known simply as Jaguar , is a British luxury car manufacturer, headquartered in Whitley, Coventry, England. It is part of the Jaguar Land Rover business, a subsidiary of the Indian company Tata Motors....
sports car designed in 1991. Originally intended to race in the IMSA
International Motor Sports Association
The International Motor Sports Association is an American sports car auto racing sanctioning body based in Braselton, Georgia. It was started by John Bishop, a former employee of SCCA , and his wife Peggy in 1969 with help from Bill France, Sr...
World Sportscar Championship
IMSA GT Championship
IMSA GT was a sports car racing series organized by International Motor Sports Association. Races took place primarily in the United States and occasionally in Canada.-History:...
, the WSC-95 actually saw very little race action even though it managed to win the 24 Hours of Le Mans
24 Hours of Le Mans
The 24 Hours of Le Mans is the world's oldest sports car race in endurance racing, held annually since near the town of Le Mans, France. Commonly known as the Grand Prix of Endurance and Efficiency, race teams have to balance speed against the cars' ability to run for 24 hours without sustaining...
in both and without actually being acknowledged as a factory supported project. It would later be upgraded to the Porsche LMP1-98 before being retired. Only two cars would ever be built.
Development
In 1995, PorschePorsche
Porsche Automobil Holding SE, usually shortened to Porsche SE a Societas Europaea or European Public Company, is a German based holding company with investments in the automotive industry....
approved the beginning of a project to develop a prototype for the International Motor Sports Association
International Motor Sports Association
The International Motor Sports Association is an American sports car auto racing sanctioning body based in Braselton, Georgia. It was started by John Bishop, a former employee of SCCA , and his wife Peggy in 1969 with help from Bill France, Sr...
(IMSA) series, running under the World Sports Car (WSC) regulations. The car would not be a factory-backed effort, yet would be approved by Porsche and use some of their expertise and most of all their powerplant. Porsche turned to Tom Walkinshaw Racing
Tom Walkinshaw Racing
Tom Walkinshaw Racing , was an auto racing team and engineering firm founded in 1976 by touring car racer Tom Walkinshaw.-History:TWR started by modifying BMW 3.0 CSLs, but soon was contracted to head Mazda's works program in the British Touring Car Championship. The TWR developed RX-7, with Win...
(TWR) to develop a car, yet would not put forward the money in order for a new car to be built from scratch.
TWR would therefore turn to a chassis which was remaining in their shop, a spare Jaguar XJR-14
Jaguar XJR-14
The Jaguar XJR-14 was a sports-prototype racing car introduced for the 1991 World Sportscar Championship season.-Introduction:The 1991 season marked the introduction of the FIA’s new, and controversial, 3.5 Litre Formula which replaced the highly successful Group C category that had been used in...
which had never completed its sale in 1992. This car was deemed suitable enough to be used in the new prototype, although it would require extensive modifications. First and foremost, the roof of the cockpit was removed in order to comply with WSC regulations. A large rollhoop was retained in order to keep structural rigidity, with a large air scoop to feed the engine being placed underneath this in order to replace the large air scoop that had originally been on the roof. Since the motor was to be a turbocharged Porsche unit, instead of the Cosworth HB V8, two scoops had to be added to the sides of the car in order to feed air to the turbochargers. Finally, the rear of the car was modified, replacing the large two tier wing with a more normal setup that fit with the current regulations.
For an engine, Porsche would use one of their longest running motors, the Type-935 turbocharged Flat-6. Originally used in the Porsche 956
Porsche 956
The Porsche 956 was a Group C sports-prototype racing car designed by Norbert Singer and built by Porsche in 1982 for the FIA World Sportscar Championship...
in the 1980s, the engine was still powerful enough to power modern prototypes. While Porsche's new 911 GT1
Porsche 911 GT1
The Porsche 911 GT1 was a car designed for competition in the GT1 class of sportscar racing, which also required a street legal version for homologation purposes...
s would use a 3.2 Litre engine, the WSC-95 would use a smaller 3.0 Litre engine. Although smaller, this gave the WSC-95 a better fuel economy than the 911 GT1, which would be useful over long race distances.
Unfortunately, the IMSA WSC regulations were changed prior to the 1995 season, leading to Porsche canceling the project. However, in February 1996 Reinhold Joest
Reinhold Joest
Reinhold Joest is a former German race car driver and current team owner. During the last 25 years, Joest Racing has won the 24 Hours of Le Mans nine times.-Driving career:...
of the Joest Racing team convinced Porsche to give the unused prototype to his team, and for them to compete in the 24 Hours of Le Mans
24 Hours of Le Mans
The 24 Hours of Le Mans is the world's oldest sports car race in endurance racing, held annually since near the town of Le Mans, France. Commonly known as the Grand Prix of Endurance and Efficiency, race teams have to balance speed against the cars' ability to run for 24 hours without sustaining...
. With approval from Porsche, Joest put forth the money to allow for the construction of a second car from scratch, as well as the slight modifications to the existing car in order to meet the Le Mans Prototype
Le Mans Prototype
A Le Mans Prototype is a type of sports prototype race car most notably used in the 24 Hours of Le Mans, American Le Mans Series and Le Mans Series...
(LMP1) regulations. Porsche would agree to help in the development of the car only if Joest agreed to pay for the services.
Following the success of the WSC-95s in winning both the and 1997 24 Hours of Le Mans
1997 24 Hours of Le Mans
The 1997 24 Hours of Le Mans was the 65th Grand Prix of Endurance, and took place on June 14 and 15 1997.-Pre-race:The Dunlop chicane was modified slightly in order to slow speeds again but also accommodate larger gravel traps as runoff area for the protection of motorcycle riders using the Bugatti...
, Porsche
Porsche
Porsche Automobil Holding SE, usually shortened to Porsche SE a Societas Europaea or European Public Company, is a German based holding company with investments in the automotive industry....
decided to take over the project themselves. Both WSC-95 chassis underwent major revisions to their bodywork. The nose was raised in the middle, while to the sides sculpting allowed for the moving of the air intakes for the engine, necessitating the removal of the large scoop underneath the rollbar. The sides of the car were also redesigned, with the large opening for the radiator vents covered up while exhaust vents were also rearranged. The Type-935 Flat-6 was also upgraded, expanded out to 3.2 Litres. While now considered an official Porsche project, the cars became officially known as the Porsche LMP1-98s.
Racing history
The two WSC-95s were completed just in time for Joest RacingJoest Racing
Joest Racing is a racing team that was established in 1978 by former Porsche works racer Reinhold Joest...
to go to the Le Mans test session in May. There, the two cars showed their pace early by setting the fifth and tenth fastest times, easily beating the factory Porsche 911 GT1
Porsche 911 GT1
The Porsche 911 GT1 was a car designed for competition in the GT1 class of sportscar racing, which also required a street legal version for homologation purposes...
s. A few weeks later at Le Mans, the WSC-95s showed their improvements and the #8 entry actually found itself in pole position
Pole position
The term "pole position", as used in motorsports, comes from the horse racing term where the number one starter starts on the inside next to the inside pole. The term made its way, along with several other customs, to auto racing. In circuit motorsports, a driver has pole position when he or she...
, while #7 was seventh. However the 911 GT1s had also improved, taking the fourth and fifth fastest qualifying positions. During the race, the #7 WSC-95 lead for nearly the entire race, although closely followed by the factory 911 GT1s. The #8 entry remained towards the front as well, although it would succumb to mechanical failures caused by a collision on the track during the closing hours. In the end, the #7 entry of Davy Jones
Davy Jones (racing driver)
Davy Jones is an American racing driver.In 1983 he came 3rd in the British Formula Three Championship behind Ayrton Senna and Martin Brundle. He also that year tested the Brabham F1 car at Brands Hatch with Bernie Ecclestone, the then team owner, looking at Jones as the next American hope for F1...
, Alexander Wurz
Alexander Wurz
Alexander Wurz is an Austrian racing driver. He competed in Formula One from until , and is also a two-time winner of the Le Mans 24 Hours....
, and Manuel Reuter
Manuel Reuter
Manuel Reuter is a German former race car driver.He has won the 24 Hours of Le Mans twice:*in 1989 24 Hours of Le Mans for Sauber-Mercedes*in 1996 24 Hours of Le Mans for Joest Racing...
would take the overall victory, a mere lap ahead of the following Porsche 911 GT1
Porsche 911 GT1
The Porsche 911 GT1 was a car designed for competition in the GT1 class of sportscar racing, which also required a street legal version for homologation purposes...
.
Although Joest had originally intended to run the car just at Le Mans in 1996, it was decided that the team would attempt once again in 1997 with a single car. A few weeks prior to Le Mans, Joest decided to showcase their car at the inaugural International Sports Racing Series event at Donington Park
Donington Park
Donington Park is a motorsport circuit near Castle Donington in Leicestershire, England.Originally part of the Donington Hall estate, it was created as a racing circuit during the pre-war period when the German Silver Arrows were battling for the European Championship...
, where the car took a dominant victory. Upon returning to Le Mans they still showed their pace by once again taking pole position. Although still facing competition from the factory Porsche 911 GT1
Porsche 911 GT1
The Porsche 911 GT1 was a car designed for competition in the GT1 class of sportscar racing, which also required a street legal version for homologation purposes...
s as well as the new McLaren F1 GTR
McLaren F1 GTR
The McLaren F1 GTR was a racing variant of the McLaren F1 sports car first produced in 1995 for grand touring style racing, such as the BPR Global GT Series, FIA GT Championship, JGTC, and British GT Championship. It is most famous for its overall victory at the 1995 24 Hours of Le Mans where it...
s, Nissan had now entered and were keen to take an overall victory. However, unlike the previous year, the 911 GT1s suffered various difficulties, both in the hands of the factory team but also for the privateers. The finish therefore came down to a close race between a McLaren F1 GTR
McLaren F1 GTR
The McLaren F1 GTR was a racing variant of the McLaren F1 sports car first produced in 1995 for grand touring style racing, such as the BPR Global GT Series, FIA GT Championship, JGTC, and British GT Championship. It is most famous for its overall victory at the 1995 24 Hours of Le Mans where it...
and the WSC-95, with Joest Racing
Joest Racing
Joest Racing is a racing team that was established in 1978 by former Porsche works racer Reinhold Joest...
once again coming out the victor by a single lap. Michele Alboreto
Michele Alboreto
Michele Alboreto was an Italian racing driver. He is famous for finishing runner up to Alain Prost in the 1985 Formula One World Championship, as well as winning the 1997 24 Hours of Le Mans and 2001 12 Hours of Sebring sports car races...
, Stefan Johansson
Stefan Johansson
Stefan Nils Edwin Johansson is a former Formula One driver from who drove for among others both Ferrari and McLaren during his Grand Prix career. Since leaving Formula One he has raced in a number of categories, including CART, various kinds of Sports car racing, and Grand Prix Masters...
, and Tom Kristensen
Tom Kristensen
Tom Kristensen is a Danish racing driver. He has won many championships in auto racing but his most famous achievement is being the only person to win the prestigious 24 Hours of Le Mans eight times, six of which were consecutive...
would take the victory this time.
Now realizing the potential of the abandoned WSC-95 against their 911 GT1, Porsche developed both chassis into the newer and even more capable LMP1-98. Unfortunately at the same time, not only were Porsche
Porsche
Porsche Automobil Holding SE, usually shortened to Porsche SE a Societas Europaea or European Public Company, is a German based holding company with investments in the automotive industry....
attempting to improve both the 911 GT1 and LMP1-98, but as were Nissan and the newcomers Toyota, Mercedes-Benz
Mercedes-Benz
Mercedes-Benz is a German manufacturer of automobiles, buses, coaches, and trucks. Mercedes-Benz is a division of its parent company, Daimler AG...
, and BMW
BMW
Bayerische Motoren Werke AG is a German automobile, motorcycle and engine manufacturing company founded in 1916. It also owns and produces the Mini marque, and is the parent company of Rolls-Royce Motor Cars. BMW produces motorcycles under BMW Motorrad and Husqvarna brands...
. Still run by the Joest Racing
Joest Racing
Joest Racing is a racing team that was established in 1978 by former Porsche works racer Reinhold Joest...
squad, the LMP1-98s showed that their quick pace was now lacking against new competitors, managing to take a best of only ninth in qualifying. During the race itself, although the LMP1-98s showed pace, they unfortunately would not be able to survive the entire race. One car suffered electronics difficulties after only 107 laps, while the second car would break some bodywork mountings in a spin and would not be able to continue after it had completed 218 laps.
For a final appearance, an LMP1-98 would appear at the debut Petit Le Mans
Petit Le Mans
The Petit Le Mans is a sports car endurance race held annually at Road Atlanta in Braselton, Georgia, USA. It uses the rules established for the 24 hours of Le Mans by the Automobile Club de l'Ouest , which are slightly modified if necessary, mainly to allow additional cars to compete.The race was...
in the United States. Alongside a lone 911 GT1, both cars showed great pace but unfortunately the LMP1-98 would have to settle for second place, defeated by a customer Ferrari 333 SP
Ferrari 333 SP
The Ferrari 333 SP was a sports prototype car built by Michelotto to World Sports Car regulations for Ferrari. Unveiled at the end of 1993, at the behest of amateur racer Giampiero Moretti , the 333 SP marked Ferrari's official return to sports car racing after a 20 year absence...
by only a few seconds following ten hours of racing.
The LMP1-98s would be retired after 1998, with Porsche planning to develop their own Le Mans Prototype
Le Mans Prototype
A Le Mans Prototype is a type of sports prototype race car most notably used in the 24 Hours of Le Mans, American Le Mans Series and Le Mans Series...
for 2000. That project would later be cancelled, and Porsche would not return to factory prototype racing until the 2005 debut of the Porsche RS Spyder
Porsche RS Spyder
The RS Spyder is a racing car designed by Porsche to compete in Le Mans Prototype Class 2 racing. The car takes its name from the legendary 550 Spyder of the 1950s...
.
Chassis history
WSC-95 #001- 1996 24 Hours of Le Mans1996 24 Hours of Le MansThe 1996 24 Hours of Le Mans was the 64th Grand Prix of Endurance, and took place on June 15 and 16 1996.-Race:The 1996 race was won by a car that was considered by Porsche to not be a factory-backed entry, instead run by Joest Racing...
#7 - Winner - 1997 ISRS Donington Park1997 FIA Sportscar Championship DoningtonThe 1997 2 Hours of Donington was the first ever race in the new International Sports Racing Series. It took place at Donington Park, United Kingdom on July 6, 1997.-Official results:Class winners in bold.-External links:* - Results...
#7 - Winner - 1997 24 Hours of Le Mans1997 24 Hours of Le MansThe 1997 24 Hours of Le Mans was the 65th Grand Prix of Endurance, and took place on June 14 and 15 1997.-Pre-race:The Dunlop chicane was modified slightly in order to slow speeds again but also accommodate larger gravel traps as runoff area for the protection of motorcycle riders using the Bugatti...
#7 - Winner - 1998 24 Hours of Le Mans1998 24 Hours of Le MansThe 1998 24 Hours of Le Mans was the 66th Grand Prix of Endurance, and took place on June 6 and 7 1998.-Race:1998 saw a significant increase in manufacturer involvement. Porsche and Mercedes-Benz remained, with upgraded cars in both GT1 and LMP. Toyota sent three of their new, extremely fast...
#7 - DNF - 1998 Petit Le Mans1998 Petit Le MansThe 1998 Petit Le Mans was the seventh race for the 1998 IMSA GT Championship season, then known as the Professional SportsCar Racing series. It was also the first race of Don Panoz's American Le Mans Series developed with the backing of the Automobile Club de l'Ouest , the ruling body of the 24...
#77 - 2nd
WSC-95 #002
- 1996 24 Hours of Le Mans1996 24 Hours of Le MansThe 1996 24 Hours of Le Mans was the 64th Grand Prix of Endurance, and took place on June 15 and 16 1996.-Race:The 1996 race was won by a car that was considered by Porsche to not be a factory-backed entry, instead run by Joest Racing...
#8 - DNF - 1998 24 Hours of Le Mans1998 24 Hours of Le MansThe 1998 24 Hours of Le Mans was the 66th Grand Prix of Endurance, and took place on June 6 and 7 1998.-Race:1998 saw a significant increase in manufacturer involvement. Porsche and Mercedes-Benz remained, with upgraded cars in both GT1 and LMP. Toyota sent three of their new, extremely fast...
#8 - DNF
External links
- Porsche USA - 1996 WSC Joest Spyder history