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Porsche uses sustainable alternative to carbon fibres for Nürburgring 24h race

Porsche Motorsports partners with technology leader Bcomp and Four Motors racing team to run full natural fibre bodywork

With sustainability ever higher on the agenda, Porsche Motorsport launches Cayman 718 GT4 CS MR featuring a full natural fibre bodywork kit developed with Swiss firm Bcomp. The car premiered at the legendary Nürburgring 24h race on 26th-27th September and will be run by Porsche customer racing team Four Motors.

 

Thanks to the powerRibs™ technology, the natural fibre parts cannot only match the performance of traditional monolithic carbon fibres, but also offer additional key benefits:

  • Sustainability: 75% lower CO2 footprint and viable end of life options
  • Cost reduction: up to 30% lower material cost
  • Safety: ductile crash behaviour without sharp shattering

 

Sustainability in motorsports

Fribourg, Switzerland. As industry and governments continue the fight against climate change, motorsport is playing a crucial role as a test bed for sustainable technologies. The motorsport industry enables products to be brought to market and tested in extremely short time frames and then, once proven, these technologies can be applied to high volume vertical markets including automotive, aerospace, and marine.

 

This is not the first time Porsche has led the way on sustainability. In 2019 Porsche Motorsport launched the Porsche Cayman 718 GT4 CS with natural fibre doors and rear wing. It was the first case of replacing carbon fibres with natural fibres in serial production for motorsports and resulted in Porsche being shortlisted for a JEC Innovation Award together with Bcomp and the Fraunhofer WKI. In fact, German Federal Minister for Food and Agriculture, Julia Klöckner, later used this door as a showcase on the press conference presenting Germany’s new bio-economy strategy. Since then, the parts have raced successfully in numerous racing series around the globe. Now Porsche Motorsport and Bcomp are progressing the collaboration by launching a full natural fibre body kit, the result is the Cayman 718 GT4 CS MR.

 

“It has been a fascinating journey since we started our collaboration with Porsche 3 years ago, resulting in the first natural fibre bodywork in serial production – the Porsche 718 Cayman GT4 Clubsport with our sustainable lightweighting solution in the rear wing and doors. Today we present the next step together, expanding the technology to the full composite body kit. We are humbled and proud to collaborate with Porsche and its reputable partners, reaching an important milestone towards a widespread use of sustainable performance materials in tomorrow’s mobility” says Christian Fischer, CEO Bcomp.

 

Front bumper b-side with powerRibs™ reinforcement grid

 

From raw material to high performance parts

Plain natural fibres cannot match the performance of carbon fibres. However, the award-winning powerRibs™ technology is a game changer. Inspired by the veins on the back of leaves, it creates a 3D grid on one side of a thin-walled shell element, which maximises stiffness at minimal weight.

 

The benefits of Bcomp’s sustainable technologies compared to carbon fibres are clear:

  • Performance: equivalent stiffness to weight
  • Sustainability: up to 75% lower CO2 footprint for a composite part using natural fibres vs. carbon fibres. At end of life, parts can be used for thermal energy recovery without residual waste, rather than ending up in landfills
  • Safety: ductile crash behaviour without sharp shattering, reducing the risk for punctures
  • Cost reduction: up to 30% lower material cost for the natural fibre fabric

 

Porsche Motorsports and Bcomp have worked closely together on the development of the natural fibre body kit, from Bcomp’s reverse engineering the carbon fibre parts into equivalent natural fibre parts, through iterations and manufacturing. It uses the same manufacturing technology and even the same moulds as the carbon fibre parts – with an important difference. Consumables such as bleeders and breathers can be eliminated, further reducing the environmental footprint and costs.

 

natural fibre bodykit

 

Live at the Nürburgring 24h race

“This project shows in an impressive way that natural fibres can easily replace carbon fibre in many motorsport applications thanks to the powerRibs™. The 24h race at the Nürburgring is the toughest GT race in the world and the perfect opportunity to put our sustainable lightweighting solutions through the decisive endurance test, we could not imagine a better place for it and we are very proud to take this step with Porsche and Four Motors.” says Bcomp’s Motorsports Manager Johann Wacht.

 

The Cayman 718 GT4 CS MR will be raced by German Porsche customer racing team Four Motors, and the first race will be the legendary 24H Race at the Nürburgring. The team is known for their strong commitment to sustainability, and a central goal is to support the development of technologies that reduce the CO2 footprint and that can be applied in road cars as well, thus significantly impacting the CO2 footprint of mobility.

 

 

“We have been using bio-fibre components in our racing cars for years and have always been determined to promote the use of these high-performance materials,” says team manager Thomas von Löwis. “Now Porsche and Bcomp have developed a perfect sustainable product just in time for the 24h race. We look forward to demonstrating the reliability and endurance of the Manthey Racing natural fibre bodywork kit with the GT4”.

 

After the successful test outing at the 24h race on Nürburgring, Manthey-Racing plan to offer the full natural fibre body kit to customers.

 

Learn more:

Full press release from Porsche AG

www.fourmotors.com

www.manthey-racing.de

 

Picture copyrights: Porsche AG and Four Motors/ChrisCarPics

 
 
 
 

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