Based on the air-cooled Mezger design

Created in 2009, Singer Vehicle Design has made quite a name for itself by modifying classic Porsche 911s. Combining state-of-the-art restoration techniques with tasteful implementation of modern features, Singer rolled out some of the most exciting 911 restomods on the market. Not just about visuals, Singer also handles the drivetrain department by rebuilding Porsche’s 3.8- and 4.0-liter flat-six engines with Cosworth and California’s Ed Pink Racing Engines. Now, Singer announced that it’s teaming up with yet another iconic company to build a new version of the flat-six. The firm in question is Williams, which has been racing in Formula One since 1977, winning nine constructors’ championships and seven drivers’ titles.

Singer and Williams will be working on engines commissioned by three clients for their air-cooled Porsche 911s. The first result of this collaboration will motivate a 1990 Porsche 911 currently being restored for a long-term Singer client. According to the company, the Mezger-designed, 3.6-liter unit from 1990 will be redesigned into a 4.0-liter with four-valves per cylinder and four cam-shafts. The engine will remain naturally aspirated and will crank out a whopping 500 horsepower, or as much as the current 911 GT3 RS.

Continue reading for the full story.

The Details

Singer Teams Up With Williams To Create 500-horsepower Porsche Engines Drivetrain High Resolution
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Singer Teams Up With Williams To Create 500-horsepower Porsche Engines Drivetrain High Resolution
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Lightweight materials, including titanium, magnesium and carbon-fiber will be used extensively to reduce component mass and vehicle weight.

The new 4.0-liter engine is more than just an old 3.6-liter with increased displacement. On top of the four-valve cylinder heads, Singer and Williams will also add dual-oil circuits, titanium con-rods for the cylinder and pistons, and aluminum throttle bodies with carbon-fiber trumpets. The engine will also get upper and lower injectors for improved performance, and a carbon fiber air-box with active multi-stage resonator chamber for mid-range torque optimization.

Further updates will include Inconel and titanium exhaust system optimized for thermal performance and a CFD optimized and enlarged engine cooling fan, as well as Ram air induction system with pressure recovery intake plenums. Finally, lightweight materials, including titanium, magnesium, and carbon-fiber will be used extensively to reduce component mass and vehicle weight.

Singer Teams Up With Williams To Create 500-horsepower Porsche Engines Drivetrain High Resolution
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Singer Teams Up With Williams To Create 500-horsepower Porsche Engines Drivetrain High Resolution
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Singer Teams Up With Williams To Create 500-horsepower Porsche Engines Drivetrain High Resolution
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All told, this engine will be unique and more advanced than Porsche's current 911 units.

All told, this engine will be unique and more advanced than Porsche’s current 911 units. And, we’re talking about a 1990 design. This speaks volumes not only of this collaboration’s capability to completely overhaul on an old engine but also of the greatness of the air-cooled Mezger engine.

"This has been a fantastic opportunity to showcase the core capabilities of Williams Advanced Engineering. Having had the opportunity to consult with Hans Mezger – the “father” of the iconic air-cooled flat-six – about the development of the engine, our team was pleased to be able to provide a solution to Singer’s clients’ requirements and of course, to be a part of this iconic vehicle’s continued evolution," said Paul McNamana, technical director of Williams Advanced Engineering.

References

2011 Singer 911

2011 Singer 911 High Resolution Exterior
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Read our full review on the 2011 Singer 911.

2019 Porsche 911

2020 Porsche 911
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Read our speculative review on the 2019 Porsche 911.

2018 Porsche 911 GT3 RS

2018 Porsche 911 GT3 RS Spyshots
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Read our full speculative review on the 2018 Porsche 911 GT3 RS.

Press release

Singer Vehicle Design announces details of a new level of restoration and modification services commissioned by three of its clients for their air-cooled Porsche 911s. To meet the high-performance and light-weighting goals required for the restorations, Singer has undertaken a performance research study with Williams Advanced Engineering, part of Williams Grand Prix Engineering Group, and engaged the celebrated motorsports concern to engineer technical modifications and components for these restored and reimagined Porsche 911s.

The first fruit of this work is a modified, naturally aspirated, air-cooled, flat-six Porsche 911 engine with a 4.0L capacity, four-valves per cylinder and four cam-shafts, rated at 500HP.

The engine benefits from the additional insight and vast experience of famed engine designer and engineer, Hans Mezger, who is a technical consultant to the project.

Singer Teams Up With Williams To Create 500-horsepower Porsche Engines Drivetrain High Resolution
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The engine will power a 1990 Porsche 911 currently being restored for long-term Singer client, Scott Blattner.

The full spectrum of the enhancements provided by Williams Advanced Engineering and other technical partners will be unveiled in Scott’s restored, reimagined and reborn Porsche 911 in September.

Beginning with the Mezger-designed Porsche 3.6L engine from the 1990 911, the resulting specification is as follows:

500HP
Four-valve cylinder heads
Engine speed range extended beyond 9,000 rpm
Dual-oil circuits
Cylinders and pistons with titanium con-rods
Aluminum throttle bodies with carbon fiber trumpets
Upper and lower injectors for improved performance
A carbon fiber air-box with active multi-stage resonator chamber for mid-range torque optimization
Inconel and titanium exhaust system optimized for thermal performance
CFD optimized and enlarged engine cooling fan
Ram air induction system with pressure recovery in intake plenums
Lightweight materials, including titanium, magnesium and carbon fiber are used extensively to reduce component mass and vehicle weight.

As ever, Singer’s work is motivated by the desire to understand the perspectives and requirements of its clients and to present them uniquely personal restoration and modification services – always guided by the philosophy: Everything is Important.

Rob Dickinson, Founder of Singer Vehicle Design, explained: “Helping our clients realize their unique vision for a reimagined Porsche 911 with the help of automotive royalty is very much a privilege. Singer is delighted to be working with Williams Advanced Engineering and Hans Mezger to offer our clients a “next level” of restoration and modification services for their Porsche 911s. With careful and dedicated development, this iconic air-cooled engine has much to give both its existing devotees and a generation of new enthusiasts.”

Singer Teams Up With Williams To Create 500-horsepower Porsche Engines Drivetrain High Resolution
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Dickinson stated that the full culmination of this exciting work with Williams and other technical partners will be revealed shortly and will represent a stand-alone selection of restoration and modification services strongly oriented towards light-weighting and dynamic gains.

Jonathan Williams, Williams Heritage Director, noted further: “The Porsche 911 has long been a standard bearer in the worlds of racing and advanced engineering – two things that we care deeply about at Williams. As an admirer of the 911, I’m thrilled that we’re working with Singer and its clients on these restorations.”

Singer client and commissioning owner, Scott Blattner, provided additional context saying: “My journey with Singer Vehicle Design began with the restoration of two coupes. In 2016 these were joined by my Targa, which recently ran in the famous Hill Climb at Goodwood Festival of Speed. I became intrigued by the possibility of further evolution and I’m very excited to be sharing the first details of the engine for my car.”

Paul McNamara, Technical Director, Williams Advanced Engineering added: “This has been a fantastic opportunity to showcase the core capabilities of Williams Advanced Engineering. Having had the opportunity to consult with Hans Mezger – the “father” of the iconic air-cooled flat-six – about the development of the engine, our team was pleased to be able to provide a solution to Singer’s clients’ requirements and of course, to be a part of this iconic vehicle’s continued evolution.”

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