Seller's Introduction
Our team at duPont REGISTRY Live presents this 1990 Porsche 911 Restomod, finished in Rubystone Red over a Black leather interior. Showing approximately 600 miles since completion, this extensively rebuilt 964 combines classic air-cooled Porsche character with modern performance upgrades. Featuring Turbo-style widebody panels, Speedline Cup wheels, and an upgraded fuel-injection system with individual throttle bodies, this striking restomod represents a carefully executed reinterpretation of the iconic 964 platform.
Overview
The Porsche 964 generation occupies a unique place in the history of the 911. Introduced for the 1989 model year, it represented a significant evolution of the classic air-cooled platform while maintaining the unmistakable design language that had defined the 911 for decades. Today, the 964 has become a favored foundation for high-end restomod builds, offering the perfect balance between classic mechanical purity and modern performance potential.
This 1990 Porsche 911 Restomod exemplifies that philosophy through an extensive mechanical and cosmetic transformation. The car has undergone a bare-metal respray in the iconic Porsche color Rubystone Red (paint code 82N), a bold and highly recognizable shade from Porsche’s historic color palette. Complementing the vibrant finish are 964 Turbo exterior upgrades, including metal Turbo front fenders, widened rear quarter panels, and Turbo-spec front and rear bumpers, a speed-activated deployable decklid spoiler, and a rear wiper for added practicality. The stance is completed by Speedline Cup wheels wrapped in Michelin Pilot Sport tires and slotted 964 Turbo Brakes, refurbished Porsche struts on lowered Eibach springs delivering a period-correct motorsport aesthetic.
At the heart of the build is a freshly built 3.8-liter air-cooled flat-six featuring a Mahle cylinder set that outputs 330 horsepower, with a custom carbon fiber intake visible in the engine bay, highlighting the build’s performance-focused upgrades. The engine also incorporates DBilas dynamic camshafts and electronic fuel injection, paired with KMS individual throttle bodies and a 997 GT3 intake manifold. A programmable ECU manages the upgraded fuel system, while dual oil coolers and a Dansk Motorsport Ultra Sport exhaust system support performance and durability. Power goes to the rear wheels through Porsche’s robust G50 5-speed manual transmission, maintaining the analog driving experience that defines classic 911s.
Inside, the cabin combines factory Porsche components with purposeful motorsport-inspired touches. Black leather upholstery surrounds original 964 Turbo seats, while a 964 RS steering wheel sits at the very heart of the driving experience. A custom roll cage finished in matching Rubystone Red adds structural rigidity and visual drama, complemented by new carpets, fresh seatbelts, rebuilt air conditioning, and a modern Continental Bluetooth audio system.
With just 600 miles (since completion) on the odometer housed within the traditional five-pod gauge cluster, this 964 Restomod presents a striking mix of heritage design and modernized performance and is further accompanied by extensive documentation, the original toolkit, and a single key. Combining widebody Turbo styling, a high-performance naturally aspirated flat-six engine, and a meticulously executed build, it offers an engaging and distinctive interpretation of Porsche’s air-cooled icon.
Features & Options
Key Features
- Bare Metal Respray in Rubystone Red
- 330 HP 3.8 Liter Flat 6 with Mahle Cylinder Set
- DBilas Fuel Injection
- Speedline Wheels
- 964 Turbo Exterior Upgrades
Exterior
- Full Repaint in 82N Rubystone Red
- Speedline Cup Wheels w/ Pilot Sport Tires
- 964 Turbo Front Fenders
- 964 Turbo Metal Rear Fender Flares
- 964 Turbo Front and Rear Bumpers
- Slick-Top Conversion
Interior
- Black Leather Upholstery
- 964 Turbo Seats
- 964 RS Steering Wheel
- Custom Roll Cage Painted in Rubystone
- Rebuilt Air Conditioning
- New Carpet and Seatbelts
- Continental Bluetooth Radio
Mechanical
- Fuel Injected 3.8 Liter Flat 6
- DBilas Dynamic Cam and EFI
- KMS Individual Throttle Bodies
- 997 GT3 Intake Manifold
- G50 5 Speed Manual Transmission
- 964 Turbo Ventilated Brakes
Items Included in Sale
- 1 Key
- Service Records
Ownership History & Provenance
Restoration work was performed at Sportscars Holland which began with a rust free 1990 911 Carrera donor car. The odometer was reset during the restoration and now shows just over 600 miles traveled since the build was completed. The car now carries a clean Montana title.
Known Shortcomings
- Due to the performance modifications, this 964 may not meet emissions regulations in certain states. Buyers should do their due diligence before the auction closes.
- True mileage is unknown due to the odometer being reset during restoration
1990 Porsche 911 Restomod | Rubystone Red, Built Twin Plug 3.8L
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