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Singer Williams lightweight air-cooled flat-six: The Knowledge

Singer Vehicle Design has released details of its performance research study with Williams Advanced Engineering, which looked at creating a ligher, more powerful air-cooled flat-six

 

Singer Vehicle Design has announced 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 insight and experience of engine designer and engineer, Hans Mezger, who is a technical consultant to the project.

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.

"Helping our clients realize their unique vision for a reimagined Porsche 911 with the help of automotive royalty is very much a privilege," explained Rob Dickinson, founder of Singer Vehicle Design. "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."

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.

"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," added Jonathan Williams, Williams Heritage director. "As an admirer of the 911, I’m thrilled that we’re working with Singer and its clients on these restorations."

 

8 August 2017

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