Vehicle Description
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All original example
1 of 29 for 1997 - 1 of 45 total worldwide production
4,081 Miles (6,568 Kilometers)
Original M64/75 3,746 cc air-cooled flat-six Engine
Original G50/34 6-Speed Manual Transmission
Original factory-applied Glacier White paint
Original Purchase Invoice
Optional 380mm Front Brake System
Optional 100 liter FT3 Safety Fuel Tank
Porsche Certificate of Authenticity
Porsche Letter of Origin
Not to be confused with the standard Cup 3.8, this 1997 Porsche 993
Cup 3.8 RSR is a far rarer beast, with just 29 built in 1997, and
limited to 45 total units produced between 1996 and 1998. As
designated by the 'Z' code in the chassis number, denoting '20631
RSR Package Vehicle', they were built specifically by the race
department at Weissach to support Porsche customer teams to race in
American IMSA and European and International GT racing. The 993 Cup
3.8 RSR was designed to take on 24 hour events such as Daytona,
Spa, and Le Mans, and customers could choose between three distinct
factory built 3.8-liter engines, each one tuned to a different
specification and designed for the appropriate class of
competition.
Like the Cup, the RSR was based on a 993 Carrera 2 shell with the
full Matter welded in roll cage, aluminum bonnet, Matter front
strut brace, fully ball jointed suspension, and special front
spoiler and adjustable rear wing. In addition, the RSR featured
2-way adjustable Bilstein suspension, bolt on wheel arches to allow
fitment of wider wheels, larger front brakes, and a driver
adjustable front roll bar.
Unique to the RSR is the uprated 3.8-liter M64/75 engine.
Extensively reworked and designed for endurance racing, it features
stronger and lighter valve gear, high-lift camshafts, and modified
pistons and cylinder barrels. The inlet plenum and exhaust manifold
are extensively revised and feature six individual throttle bodies.
Performance was increased to 350 horsepower at 7,000 rpm, and
delivered through a single-mass flywheel to a, unique to the RSR,
G50/34 six-speed manual gearbox.
Invoiced by Porsche Motorsports in Weissach on January 29, 1997 to
its first owner, Takashi Yasunaga, chassis 98077 was built on March
7th, 1997 and fitted with the M64/75 motor specifically tuned for
endurance competition, and was further supplied with the optional
100 liter fuel cell and 380mm front brake system. The RSR arrived
in the city of Yokohama in Kanagawa Prefecture, Japan on March 17
of the same year.
Mr. Yasunaga intent was to campaign the car in the Zen Nihon GT
Senshuken (JGTC) National Championship, however a change of
priorities meant the RSR was never raced in anger, and its use
limited to Porsche Club of Japan events in Suzuka and Fuji, and the
occasional Sunday outings in the District of Hiranuma. After
twenty-years of ownership Mr. Yasunaga sold the RSR to a British
collector who transported it to North Ascot in East Berkshire
during the latter half of 2017. Once again the RSR was not
campaigned competitively, but rather registered for road use, and
enjoyed as an automotive artifact of historical importance. While
in the U.K. the RSR was impeccably maintained, including a major
service being performed by the Porsche Classic Center in Guilford,
Surrey on April 12, 2018, at 6,035 kilometers, and properly
recorded in the included Porsche Classic Service Record
booklet.
Upon being purchased by its 3rd and current owner, the Porsche 3.8
RSR boarded a Cargolux Boeing 747 at London's Heathrow airport, and
was air freighted to Miami International on June 2, 2019, intended
for road use in the U.S. In preparation for driving, the RSR was
scheduled for service at Porsche West Broward, Florida, on August
7, 2019 with 6,269 kilometers on the odometer. A multipoint
inspection was performed, and the aging vacuum lines were replaced
along with the inner and outer rear CV axle boots, spark plugs and
fuel filter. The engine and transmission were removed, and the
transmission case resealed, and finally an oil and filter service
was performed, at a total invoice amount of $7,256.38.
Upon arrival at Canepa the team of expert motorsports technicians
performed a comprehensive inspection, noting that the RSR is free
of any incidents, and paint meter readings confirmed that it still
wears its factory applied Glacier White paint. The center-lock
magnesium wheels are stamped with the correct date codes, and the
correct Bosch Motronic M2.10 ECU remains in situ, paint code
markings on panels are intact, as are the labels on the Recaro seat
and six-point Sabelt harness, attesting to the pristine original
condition of this spectacular example of the Porsche 993 Cup 3.8
RSR.
Due to the lack of competition, only 6,568 original kilometers
(4,081miles) are recorded on the odometer and the RSR retains the
original engine (62P85717) and close-ratio synchronized gear box
(2002023) as recorded on the official Porsche Letter of Origin.
This matching numbers RSR is mechanically perfect. The M64/75 3.8
litre DOHC engine, with its bespoke pistons and high lift cams is
generating 350 hp at 6,900 rpm, producing the most visceral driving
experience witnessed in an atmospheric car of the era. The
close-ratio 6-speed gearbox is precise and functions impeccably
throughout the entire power band, thus motivating the RSR to
sprints from 0-60 mph in 4.2 seconds and top speeds in excess of
175 mph.
The independent front suspension coil-overs and multi-link fully
adjustable rears, as well as the camber, are dialed in a neutral
setting for smoother travel optimized for open road use and
occasional track days. Air Jacks are fitted for quick pit stops
during serious competition. The BBS modular 18-inch center lock
wheels with magnesium centers make contact with the tarmac via
high-speed Z rated Michelin Pilot Sport tires (235 front and 295
rear), ideal for a wide range of applications.
The exterior of this competition car is in spectacular condition
with the Firnweiss (Glacier White) enamel free of any
imperfections. The paint meter is consistently reading between 4
and 6 mil throughout all panels, doors, bonnet and roof, further
attesting to the immaculate provenance of the RSR. The condition of
the pronounced composite flairs is equally flawless.
The sale of this remarkable 1997 Porsche 993 Cup 3.8 RSR is
accompanied by extensive documentation including a Porsche
Certificate of Authenticity, the original Purchase Invoice, a
Letter of Origin from Porsche Cars Great Britain confirming the
original engine and transmission numbers, road registration and
licensing confirmation from the DVLA in the U.K., U.S.
transportation paperwork including customs documents, service
records, and a comprehensive inspection report by Jurgen Barth.
One of just 29 Weissach-built Porsche 993 Cup 3.8 RSR's for 1997,
this spectacularly original beast of a car is suitable for
competition use, open road enjoyment, or display on the worlds
finest show laws.
Specification
Z1Z1
Glacier White
001
Carrera Cup
050
Pirelli Tires
071
EU Country Version
220
Limited Slip Differential
338
Rear Wheel Drive
388
Cloth Bucket Seat, Left
401
18" Cup Racing Wheels
426
Without Rear Window Wiper
459
Strut Bar
471
Fixed Rear Spoiler With Additional Wing
480
6-Speed Manual Transmission
488
Decals in German
499
Version for Germany
544
75 Liter Fuel Tank
564
Without Airbags
657
Power Steering
Options
100 Liter FT3 Fuel Tank
380mm Front Brake System