This 1977 Porsche 930 Turbo was delivered new to Mitsuwa Motors in Japan, where it was first registered in February 1977. It passed through several owners over the ensuing 46 years before being acquired by the selling dealer and imported to the US in June 2023. Powered by a turbocharged 3.0-liter flat-six mated to a four-speed manual transaxle, the car wears a later-style front valance as well as a front chin spoiler and a whale-tail rear wing. On the inside, the front bucket seats are trimmed in black leather and accompanied by a fold-down rear bench seat. Further equipment includes air conditioning, power windows, and power-assisted disc brakes. The car received a repaint in its factory shade of silver and underwent an engine out service prior to being listed on BaT in December 2023. Subsequent work in 2024 is noted to have involved installing a three-spoke steering wheel and replacing the 16″ Fuchs alloy wheels as well as servicing the timing chain tensioners, performing a valve adjustment, and replacing the valve cover gaskets. Now showing 70k kilometers (~44k miles), this 930 Turbo is offered by the selling dealer in San Diego, California, with owner’s manuals, Japanese maintenance records, a tool kit, a portable air compressor, and a clean Montana title.
The car left the factory finished in Silver (936) and was fitted with a later-style front valance under previous ownership. It was repainted upon arrival to the US in 2023. A front chin spoiler is paired with a whale-tail rear wing, and further details include H4 headlights, rectangular fog lights, body-color side mirrors, European-style rear bumperettes, and a rear window wiper. The car is not equipped with a sunroof, and a MIZWA Porsche decal is affixed to the rear window.
The 16×7” front and 16×8″ rear Fuchs alloy wheels feature black center and are mounted with Falken Ziex ZE950 tires measuring 205/55 and 225/50 respectively. The car rides on Bilstein shocks, and braking is handled by power-assisted ventilated discs all around.
The cabin features front seats trimmed in black leather, while color-matched upholstery covers the fold-down rear bench seat as well as the door panels and dash. The air conditioning system has been converted to utilize R134a refrigerant, and additional equipment includes three-point front seatbelts, rear lap belts, and power windows.
The three-spoke steering wheel is wrapped in leather and sits ahead of VDO instrumentation including a central 8k-rpm tachometer with an inset boost gauge flanked by a 300-km/h speedometer, a clock, and gauges monitoring fuel level, oil level, oil temperature, and oil pressure. The six-digit odometer shows 70k kilometers (~44k miles), less than 100 of which have been added under current ownership.
The 3.0-liter Type 930/54 flat-six was factory rated at 260 horsepower and 253 lb-ft of torque when new. An engine-out service was performed by the selling dealer following the car’s arrival in the US in 2023. The engine was removed again in 2024, and subsequent work is said to have involved servicing the timing chain tensioners and oilers as well as performing a valve adjustment and replacing the valve cover gaskets.
Power is sent to the rear wheels via a four-speed manual transaxle that was serviced in 2023, according to the selling dealer. A replacement fuel tank was installed and the factory thermal reactors were removed under previous ownership. The car has not passed a California emissions test.
A tool kit and a portable compressor will accompany the car along with owner’s manuals and two Japanese maintenance booklets dating back to 1991.