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Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, showing carbon fiber airbox and fan shroud with CFD-optimized and enlarged fan. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.
  • Porsche flat six modified by Singer and Williams
  • Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, showing carbon fiber airbox and fan shroud with CFD-optimized and enlarged fan. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.

  • Image Credit: Singer Vehicle Design
  • Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, showing carbon fiber airbox and fan shroud with CFD-optimized and enlarged fan. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.
  • Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, showing carbon fiber airbox, fan shroud and intake trumpets with CFD-optimized and enlarged fan. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.
  • Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, showing CFD optimized ram-air induction system via rear side window opening and Inconel / titanium exhaust system. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.
  • Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, showing CFD optimized ram-air induction system and Inconel / titanium exhaust system. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.
  • Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, housed in engine bay. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.
  • Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, housed in engine bay. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.
  • Porsche 4.0L air-cooled flat-six with 4-valve cylinder heads, housed in engine bay. Restored and modified by Singer Vehicle Design and Williams Advanced Engineering.
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