This 1973 Porsche 911E coupe was modified in the RSR-style by Gary Dielacher of GD Racing in San Bruno, California beginning in 2011. The donor car was sourced in Los Angeles and was fitted with carbon fiber and fiberglass composite body panels prior to being repainted in Viper Green, and the interior was refurbished using ST-replica seats and other RSR-style components. Power is provided by a 3.6-liter VarioRam flat-six from a 1997 993 Carrera paired with a rebuilt 915 5-speed manual transaxle with a limited-slip differential. After the previous owner acquired the car in 2018 it received further updates, including a 65L fuel tank with a front-trunk filler neck and billet cap. Since acquiring the car on BaT in 2019, the current owner has performed a paint treatment, a nut-and-bolt inspection, track-use preparations, and other small fixes. Approximately 1,100 miles have been added since the build was completed, and the car is now being offered on the current owner’s behalf with a Porsche Production Specifications certificate, invoices from the build, records from the seller, two additional rear decklids, and a clean California title.

The shell was media blasted to bare metal and was fitted with new floor pans after pinholes were discovered, and the car was then repainted in Viper Green. To help reach the RSR target weight of 1,850 pounds, the car has been fitted with fiberglass front fenders, RS-style bumpers, fiberglass composite doors with aluminum hinges, and a carbon fiber rear engine lid with integrated ducktail. Fiberglass composite rear fenders are bonded to the tub, and a carbon fiber roof center panel was installed using flanges added to the edges of the factory roof, while leaving the factory A and B pillars.

For additional weight savings the car was fitted with polycarbonate windows in place of the factory side glass and rear screen, and 911R-style leather straps with snap fasteners have been installed and secure the side windows in the open and closed positions. H4 lamps replace the factory sugar scoop items and are fitted with chrome trim rings, and the car is equipped with amber front and rear indicator lenses.

The 17″ Fikse/Zuffenhaus wheels were refinished by Harvey Weidman with an RSR-style matte finish, and measure 9″ wide at the front and 11″ at the rear. The Kumho Ecsta XS tires measure 245/45 at the front and 315/35 at the rear and show 2014 date codes.

The cabin features replica ST fixed-back seats, which are secured with double-locking Recaro rails and were upholstered in perforated leather with corduroy inserts by Michael Eberhardt at Vintage Seats in Cumming, Georgia. The seats reportedly weigh approximately 14 pounds each, and other weight-saving measures include RSR-style door panels and a custom RSR-style lightweight carpet set. The radio, heater controls, and glovebox door have been removed but are included, and the Rennsport shifter is fitted with a factory rubber boot.

The four-spoke 914-6 steering wheel measures 380mm in diameter and was double-wrapped to mimic factory RS wheels. Instrumentation includes a 10k-rpm tachometer and a 180-mph speedometer with a six-digit odometer indicating 1,200 miles. The current owner has added several hundred miles during his ownership.

The 3.6-liter VarioRam flat-six was sourced from a 1997 993 Carrera and reportedly showed between 2-3% leakdown on five cylinders and 4% on the remaining cylinder at the time of installation. The Motronic DME has been reflashed to disable the drive-block and OBDII sensors, and the fuel maps were retuned. An internally-modified Dansk sport muffler features twin RSR-style outlets, and 930 oil lines lead to an in-fender aluminum oil cooler with fan and a second RS-style oil cooler in the lower front valence.

Power is sent to the rear wheels via a 1986 Type 915 5-speed manual transaxle with a 40%-locking ZF differential, which was rebuilt prior to installation. Under current ownership the car has received a nut-and-bolt inspection, track preparations, and assorted minor fixed by BBI Autosport.

The factory steel rear trailing arms have been replaced with a set of aluminum items from a 1976 Carrera. Other suspension modifications include green Bilstein HD shocks at the front, yellow Bilstein Sport shocks at the rear, 19mm front and 23mm rear torsion bars, and 1973 RS-sized sway bars measuring 16mm at the front and 18mm out back. 944 Turbo front calipers are installed, and the rear brakes are 1986 Carrera items. A 23mm brake master cylinder is fitted in place of the original 19mm unit.

A flat fiberglass decklid with an early, black aluminum grille and a black RS-style stripe is included. A color-matched 964 decklid with wing is also included, though the wing portion has not been painted, shows two cracks, and does not include a lifting motor.

A video which includes discussion of the car, driving, and a general walk-around is viewable above.