Vehicle Description
1975 Porsche 911 Coupe "73 Twin Turbo RSR"
Chassis Number: 9115201063 (US Model '75 911S Coupe)
Engine Number: 62L20034 (3.8L Twin Plugs and Turbos)
Transmission Number: 003392 (G5 020 1, 6-Speed SBH)
European Collectibles is pleased to present this stunning Twin
Turbo RSR that was built to customer specifications by Patrick
Motorsports. This project began with a U.S. model 1975 911S that
was stripped to bare metal and fitted with early RSR style steel
fenders front and rear. It was backdated to "long hood"
specification with subtle custom features such as a roofline with
shaved rain gutters similar to the RUF Yellowbird, R-style
taillights, center-fill hood, 934/935 style aerodynamic mirrors,
and a beautiful "Jabroc" spoiler is a special wood used for F1 cars
that protects the fiberglass front valence. An iconic ducktail
spoiler was handcrafted to fit over the engine's intercooler and
features a massive grill for proper breathing. Once the bodywork
was perfected, a one-off color was designed by a notable designer,
and expertly applied to the entire body shell. Work in the interior
began with the installation of a roll cage to strengthen the body
shell for the extra horsepower and provide additional safety
protection for the driver. The roll cage was wrapped in leather as
were the hardback sport seats and nearly every square inch of the
rest of the interior. Wool carpets were installed, and a unique
weave was designed for the seat inserts, door panels other accent
areas. All interior components were cut by hand, and the hides
match perfectly. The wood shift knob is an homage to the 917, the
gauges were inspired by the beauty of the 356 & early 911 and the
vent control panel was restored to match perfectly.
The engine case is a 3.6L from the 964 era, and the displacement
has been increased to 3.8L with twin plugs, MoTeC engine management
system, and dual turbos. The engine produces in excess of 600BHP at
the crankshaft. When tested on a chassis dyno, the rear wheels
produced 558 bhp with one bar of boost and gasoline from the pump.
The engine is capable of producing much more power, although not
necessary. In addition to it making big power, it is a thing of
beauty with handcrafted stainless-steel headers and an installation
so sanitary and well-planned, it looks like as if it were done at
the Porsche factory. To put this kind of power on the street, where
it will eventually be caught in traffic, cooling became a
significant concern. To solve this potential problem, multiple oil
coolers and electronic fans can be found in various nooks and
crannies throughout the body shell. Additionally, careful attention
was paid to all engine and gearbox mounting points, and the
bodyshell was reinforcement. A G50 6-speed gearbox with a shortened
bell housing was updated and rebuilt with a Billet side cover and a
limited-slip differential. A hydraulic pedal assembly was
installed, and the actuation of the competition clutch is
direct.
Opening the hood reveals the same high level of craftsmanship that
is found elsewhere. The paintwork and coated surfaces are expertly
presented, and the racing-style fuel cell and dual brake master
cylinders mean business. Underneath the car is more of the same
with large 917 type brakes, 935 type suspension, Bilstein
adjustable coil-over dampers, and moonball front strut mounts.
Walking up to the car and marveling at its overall presence and
attention to detail is one thing. Sitting down in the beautifully
appointed yet purposeful interior is another, but the real
excitement begins when you turn the key, fire the engine, and
engage the clutch. This is a rare opportunity to own one of the
finest custom Porsches ever built.