Vehicle Description
1975 Porsche 911 Carrera "R-Gruppe"
VIN: 9115400273
Two owners, same owner for 38 years
No-expense-spared 3-year build completed by Kelly Moss Road and
Race in 2015
Rothsport Racing-prepared 993 Varioram engine with 315
horsepower
Magnesium-case 915 transmission rebuilt and upgraded by Brian
Copans
Original Porsche color Cockney Brown
Custom leather interior by Autobahn Interiors
5-time concours-award winner
This 1975 Porsche 911 Carrera "R-Gruppe" in Cockney Brown is the
result of a vision and some of the best Porsche builders and
restorers. In 2015 Kelly Moss Road and Racing completed the
excellent restoration and custom mechanical work, while Rothsport
Racing worked over its upgraded 993 engine for a stout 315
horsepower. With all of its original sheet metal painted in its
original color of Cockney Brown with a custom leather interior by
Autobahn Interiors, this 38-year owned 1975 Porsche 911 Carrera is
the perfect fly-under-the-radar Porsche outlaw.
History
This 1975 Porsche 911 Carrera began its life as a stock 911 Carrera
in Cockney Brown. First owned by a flight attendant, she would keep
the car stock and drive it for a couple of years before selling it
to its most recent owner who would keep the car for 38 years. When
he moved from Nashville, TN to Texas in 2012, he decided that he
wanted to build a long-awaited dream: an IROC tribute 911. However,
due to the values of the air-cooled 911s at the time and not
wanting to devalue the car or engine, he decided instead to send
the car to the very capable Kelly Moss Road and Race in 2012.
Exterior
The Cockney Brown 911 was immediately disassembled down to every
last piece of hardware to begin the restoration. The 2.7-liter
engine was removed from the car and placed to the side, which is
included with the car. Once the car was devoid of all its parts,
all of its paint was removed down to bare metal, confirming that
the car had zero rust and no damage whatsoever. This allowed Kelly
Moss to keep all of the original sheet metal. The entire car was
prepped for paint, prepared to be painted in its original color
Cockney Brown. The front and rear bumpers are a custom composite,
with the front having a custom center mount oil cooler. A custom
composite "ducktail" engine cover was installed. All aluminum trim
was re-anodized black, new sunroof trim cables and wind deflectors
were added along with all of the sunroof felt. All new glass, new
rubber trim, Porsche H1 headlights and trim rings were added, and
new Porsche taillights were added with a new center reflector. The
result is an exterior that is subtle to the untrained eye, but to
the right enthusiast will see all the extra touches that make this
911 Carrera special.
Engine
Rothsport Racing was chosen for the engine build but instead of
using the 2.7-liter engine, a 993 engine with Varioram was used for
greater horsepower and torque. Built and massaged, the 993 engine
now produces 315 horsepower, more than 80% more power than stock.
Rothsport added their ECU and custom stainless-steel exhaust
headers to the 993 engine and sent it back to Kelly Moss. A factory
GT3 Cup titanium muffler was added. Kelly Moss installed a custom
air intake, a new oil tank with a new oil level and temperature
sensor, WEVO engine mounts, custom engine compartment, exhaust and
oil line heat shielding, a custom wiring harness, and a Bosch
motorsports fuel pump. Altogether, the raw performance of
Rothsport's engine paired with Kelly Moss's supporting upgrades
provide enough power to keep you pushed back in your seat
constantly.
Transmission
Brian Copans, a well-known Porsche transmission builder, was asked
to provide his skillset to this build. He started by rebuilding a
magnesium-case 915 transmission, but added in a few hidden tricks.
Porsche GT gears were added for the 1st, 2nd and 3rd gear, a Quaife
limited slip differential, and a host of WEVO parts: a bearing
plate retainer, internal gate shift, shifter, shift coupler with a
billet collar, and transmission mounts. Kelly Moss then added
custom motorsport axles and CV joints, and an all new shift rod and
shift tower bushings. The transmission was now a piece of hardware
that could backup the custom powerplant for the 911.
Suspension and Brakes
Suspension and brakes were the next stop for the 911 with Kelly
Moss focusing on keeping its handling abilities level with its
performance. Some highlights are the Motion Control Suspension
remote reservoirs with 18 click double adjustable struts and
shocks, 19mm raised spindles with competition gussets, 22mm sway
bars with billet upper shock tower support and upper mono ball
shock mounts, and a TRG shock tower brace. All of the suspension
parts were powder coated in black, and the rear trailing arms were
removed and refurbished with all new poly bronze bearings. Elephant
racing poly bronze suspension bearings and bushings were added all
around, Elephant Racing advanced tech adjustable rear spring plates
and their quick-change rear splined hub. Porsche Turbo tire rods
were added, along with WEVO RARB console rear sway reinforcements,
TRG bump steer kit, and hollow torsion bars (24mm front, 31mm
rear). Porsche 993 Turbo big brakes were added, along with Pagid
competition brake pads, all new stainless-steel lines, new 2-piece
aluminum hat floating brake rotors and mounts, Porsche OEM brake
rotors drilled, custom Kelly Moss carbon fiber front brake cooling
ducts and rotor covers, and a 23mm master cylinder.
Interior
Porsche-specialists Autobahn Interiors of San Diego, CA were tasked
with creating the custom leather interior. All of the interior
components were shipped to their workspace where they began making
templates of the originals. The original 1975 Porsche Recaro Sport
seats were reupholstered with new leather, along with a new leather
dashboard, leather door cards with lightweight RS door pulls and a
new black leather headliner. A new Carrera lightweight carpet set
was added, along with new red seat belts and new OEM seat belt
receivers. When the interior components were assembled and
finished, everything was shipped back to Kelly Moss to be installed
onsite by Moss's technicians. All of the interior gauges were
refurbished by Hollywood Speedometers, and a new 10,000rpm STACK
tachometer with memory and max functions was added. Rennline
aluminum floorboards in wrinkle black were installed, a refurbished
pedal cluster was added, and even each OEM lever and button
controls were refinished. Now completed, the upscale yet subtle
cockpit paired perfectly with the rest of the Carrera.
Additional Upgrades
The Carrera also received a few other notable upgrades, such as a
custom fuse panel and wiring conversion to modern "spade" fuses,
custom billet remote shock absorber reservoir mounts, and a 6x15
Porsche Fuchs alloy spare wheel with a NOS collapsible Vredestein
tire with a 1973 Porsche 911 RS tire CO2 inflator. An OE tool pouch
and tools in concours condition, along with a Rennline aluminum
blower motor cover and a NOS Porsche 1973 Porsche 911 Carrera RS
88-liter plastic fuel cell. Custom BBS Motorsport E28 3-piece
wheels with magnesium centers with aluminum rim halves were used.
Completely disassembled and the centers micro fluxed to check for
cracks, they then were powder coated and reassembled with all new
BBS hardware. Pirelli Trofeo R-compound tires are used with the BBS
wheels. Last but not least, the 2.7-liter Carrera engine that was
removed, along with the factory "whale tail" spoiler, we...for more
information please contact the seller.