This Might Be The Greatest Air-Cooled 911 Droptop Ever Made

This Might Be The Greatest Air-Cooled 911 Droptop Ever Made

Allow me to introduce the 'America GS.' It's a one-of-one car built by Porsche Exclusive back in 1992. It might just be the greatest drop top of the air-cooled era, and when you see the list of modifications, you'll understand why.

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Pending approvalOriginal post by Goggles Pizzano on Oppositelock

America GS 3.8 by Porsche Exclusive

America GS 3.8 by Porsche Exclusive

1 of 1. Built in '92. Everything but the kitchen sink, but with complete dedication to light weight and speed.

America GS 3.8 by Porsche Exclusive

America GS 3.8 by Porsche Exclusive

Every nut and bolt improved if possible.

America GS 3.8 by Porsche Exclusive

America GS 3.8 by Porsche Exclusive

America GS 3.8 by Porsche Exclusive


The original owner Robert Linton has continued to develop and upgrade the car.

I could find no original photos of the engine bay, but many taken after some upgrades. All work was completed at Cartridge Limited in Manhattan.

A quick rundown of the technical specs:

  • 400 hp and 900kg. Same power to weight ratio as a Carrera GT.
  • RWD
  • Tiptronic® Transmission – Blueprinted, Polished, Reinforced And Dynamometer Tested Race Version. High Performance Software For Tiptronic® Transmission Including:
    a. Specially Programmed For Use With 3.8 Liter Engine
    b. Permits Driver To Hold Transmission In Gear In "Tip" Mode – Transmission Will Not Override Driver
    c. Higher Performance In Automatic Mode
    d. Transmission "Learning" More Rapid In Automatic Mode

The America GS 3.8 Hardtop Roadster was built a few years after Dr. Porsche's 80th birthday present, the Panamericana. With that extra time, Herr Lagaay (H. Lagaay, retired Chief Stylist of Dr. Ing. h.c. F. Porsche AG) was able to devise a different exterior color, multi-color hand silk-screened primary leather, accent secondary leather, colored seat belts and zipper for the America GS — which he (and I) thought more than successful than the Panamericana. Hence, while both cars have a type of green on the exterior, they are quite different and the interiors are also quite individual.

America GS 3.8 by Porsche Exclusive

Full specs:

Engine:

    • 1. Blueprinted And Dynamometer Tested
    • 2. America GS Engine Management System Programmed For Use With America GS Tiptronic® Transmission
    • 3. America GS High Flow Hot Wire Induction System
    • 4. Reduced Weight Cam Deck
    • 5. America GS Drilled Camshafts
    • 6. Reduced Weight Adjustable Rocker Arms
    • 7. America GS Cylinder Heads With Copper/Beryllium Valve Seats
    • 8. America GS Cylinders
    • 9. America GS Lightweight Pistons
    • 10. America GS Metal Matrix Composite Wrist Pins
    • 11. America GS Titanium Connecting Rods
    • 12. America GS Aluminum Gears
    • 13. America GS Aluminum Sprockets
    • 14. America GS Titanium Intake Valves
    • 15. America GS Titanium Exhaust Valves
    • 16. Uprated High Pressure Fuel Pump
    • 17. Uprated Fuel Rail
    • 18. Adjustable Fuel Pressure Regulator
    • 19. America GS Engine Oil System
    • a. America GS Carbon Fiber/Titanium/Aluminum Engine Oil Tank With Uprated Anti-Aeration Cone
    • b. Increased Pressure And Scavenge Engine Oil Pump
    • c. America GS Aluminum High Efficiency Triple Engine Oil Cooler System
    • d. America GS Aluminum Engine Oil Cooler Distribution Manifold
    • e. America GS Aluminum Engine Oil Lines With Machined Aluminum Fittings
    • f. America GS Machined Aluminum Engine Oil Line Fitting
    • g. America GS Machined Aluminum Oil Filter Console Fittings
    • h. America GS Machined Aluminum Thermostat Fittings
    • i. Goodridge G-Line XF Engine Oil Hoses With Goodridge Machined Aluminum AN Fittings
    • 20. Uprated Gaskets
    • 21. America GS Increased Flow Air Filter Box With Induction Snorkel And Increased Air Flow Lid
    • 22. BMC America GS Increased Flow Air Filter
    • 23. Plastic Valve Covers
    • 24. Crankshaft, Flywheel, Pressure Plate, Connecting Rods, Connecting Rod Ends And Pistons Balanced
    • 25. Engine Cleaned, Ported And Polished
    • 26. Engine Case Windage Adjusted
    • 27. Engine Case Dovetailed
    • 28. Goodridge G-Line XF Fuel Hoses With Goodridge Machined Aluminum AN Fittings
    • 29. America GS Lightweight Alternator With Titanium Shaft
    • 30. America GS Titanium Pulleys
    • 31. America GS Titanium Cam Deck Fasteners
    • 32. America GS Titanium Chain Housing Covers Fasteners
    • 33. America GS Titanium Fasteners
    • 34. America GS Titanium Washers
    • 35. America GS Titanium Engine Casing Studs
    • 36. America GS Titanium Engine Exhaust Studs
    • 37. America GS Titanium Engine Support Mounting Studs
    • 38. Silver Plated Jet Nuts
    • 39. America GS Carbon Fiber/Aluminum Engine Support/Engine Shroud/Air Conditioning Compressor Mounting Platform
    • 40. America GS Titanium Air Conditioning Compressor Support Bracket And Fasteners
    • 41. America GS Carbon Fiber/Titanium Engine Mounting
    • 42. America GS Carbon Fiber/Titanium Solid Engine Mounts
    • 43. America GS Titanium Engine Mounting Fasteners
    • 44. Castrol RS Synthetic 10W60 Racing Engine Oil

    Transmission:

      • 1. Tiptronic® Transmission – Blueprinted, Polished, Reinforced And Dynamometer Tested Race Version
      • 2. High Performance Software For Tiptronic® Transmission Including:
      • a. Specially Programmed For Use With 3.8 Liter Engine
      • b. Permits Driver To Hold Transmission In Gear In "Tip" Mode – Transmission Will Not Override Driver
      • c. Higher Performance In Automatic Mode
      • d. Transmission "Learning" More Rapid In Automatic Mode
      • 3. Torque Sensing Differential Mounted To Ring Gear With Specifically Made Stainless Steel Bolts
      • 4. Carbon Fiber/Titanium Side Transmission/Differential Housing
      • 5. Wire Electro-Discharge Machined 300M Transmission Output Flanges
      • 6. Lightweight Flywheel
      • 7. Titanium Transmission Linkage Brackets
      • 8. Aluminum High Efficiency, Lightweight Transmission Oil Cooler
      • 9. Goodridge G-Line XF –8 Hoses With Machined Aluminum AN Fittings From Transmission To Transmission Oil Cooler
      • 10. 8 Aluminum Quick Disconnects Between Transmission And Transmission Oil Cooler
      • 11. Titanium Transmission Fluid Fill Plug
      • 12. Carbon Fiber Transmission Fluid Pan Including:
      • a. Titanium Banjo Level Indicator Fitting
      • b. Titanium Drain Plug
      • c. Aluminum Fasteners
      • 13. Titanium Transmission Fasteners Throughout
      • 14. Titanium Transmission Mounting Fasteners
      • 15. Titanium Differential Fluid Fill Plug
      • 16. Magnetized Aluminum Differential Fluid Drain Plug
        • -carbon fiber struts with integrated angle adjustment
        • - true 4-way adjustable titanium/aluminum dampers with blow off pistons ——-electron beam welded hard chromed titanium outer shafts and titanium hard chromed inner shafts — connected by stainless steel braided Raychem covered hoses with machined fittings with –4 titanium quick disconnects to reservoirs with integral adjusters
        • - aluminum integrated front spring caps/spacer sleeves/nut sleeves
        • - beta c titanium main and helper springs with ultra high molecular weight plastic transition pieces
        • - aluminum 4-way spring rate adjusters with integrated titanium locking mechanism
        • - aluminum lithium monobloc 8 titanium piston calipers with air gaps, two pads per side, quick release pad pins, titanium quick disconnects in place of bleed screws and titanium quick disconnects in the lightweight stainless steel braided Raychem covered hoses with machined titanium fittings between the calipers and the chassis hard lines
        • - 4130 zinc passivate coated anti roll bar with 5-way adjustable 4130 machined ends with Orkot® bushings, titanium bushing stops, titanium mounting brackets and titanium fasteners
        • - titanium/steel center lock nuts
        • - one-piece forged magnesium center lock wheels with titanium pressure shims

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        Hnnngggg

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        8-piston. On a 2000lb 911.

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        Carbons

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        Breather cap

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        Hnnnggg

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        America GS 3.8 by Porsche Exclusive

        More here

        America GS 3.8 by Porsche Exclusive

        Anyone care to share their photoshop painting skills? Share the task? McMike?

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